Nissan Primera P11 2001 User Manual

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Page 1

AUTOMATIC TRANSAXLE

SECTION

CONTENTS

TROUBLE DIAGNOSIS - INDEX ....................................3

Alphabetical & P No. Index for DTC ...........................3

PRECAUTIONS ...............................................................5

Precautions for Supplemental Restraint System (SRS) ″AIR BAG″ and ″SEAT BELT

PRE-TENSIONER″......................................................5

Precautions for On Board Diagnostic (OBD)

System of CVT and Engine.........................................5

Precautions ..................................................................5

Service Notice or Precautions .....................................6

Wiring Diagrams and Trouble Diagnosis .....................7

PREPARATION ...............................................................8

Special Service Tools ..................................................8

OVERALL SYSTEM ........................................................9

CVT Electrical Parts Location......................................9

Circuit Diagram ..........................................................10

Cross-sectional View - RE0F06A ..............................11

Control System ..........................................................12

ON BOARD DIAGNOSTIC SYSTEM

DESCRIPTION...............................................................15

Introduction ................................................................15

OBD Function for CVT System .................................15

OBD Diagnostic Trouble Code (DTC) .......................15

Malfunction Indicator (MI) ..........................................18

CONSULT-II...............................................................18

TROUBLE DIAGNOSIS - INTRODUCTION..................29

Introduction ................................................................29

Work Flow ..................................................................32

TROUBLE DIAGNOSIS - BASIC INSPECTION ...........34

CVT Fluid Check .......................................................34

Stall Test ....................................................................34

Line Pressure Test.....................................................35

Road Test...................................................................36

TROUBLE DIAGNOSIS - GENERAL

DESCRIPTION...............................................................41

TCM Terminals and Reference Value........................41

AT(H⋅CVT)

TROUBLE DIAGNOSIS FOR POWER SUPPLY..........45

Wiring Diagram - CVT - MAIN...................................45

DTC P0705 PARK/NEUTRAL POSITION (PNP)

SWITCH .........................................................................48

Description .................................................................48

Wiring Diagram - AT - PNP/SW.................................50

Diagnostic Procedure ................................................51

Component Inspection ...............................................53

DTC P0710 CVT FLUID TEMPERATURE SENSOR

CIRCUIT.........................................................................54

Description .................................................................54

Wiring Diagram - AT - FTS........................................56

Diagnostic Procedure ................................................57

DTC P0715 PRIMARY SPEED SENSOR.....................59

Description .................................................................59

Wiring Diagram - AT - VSSA/T..................................60

Diagnostic Procedure ................................................61

Component Inspection ...............................................61

DTC P0720 VEHICLE SPEED SENSOR CVT

(SECONDARY SPEED SENSOR) ................................62

Description .................................................................62

Wiring Diagram - AT - VSSA/T..................................64

Diagnostic Procedure ................................................65

Component Inspection ...............................................65

DTC P0725 ENGINE SPEED SIGNAL .........................66

Description .................................................................66

Wiring Diagram - AT - ENGSS ..................................67

Diagnostic Procedure ................................................68

DTC P0740 TORQUE CONVERTER CLUTCH

SOLENOID VALVE........................................................69

Description .................................................................69

Wiring Diagram - AT - TCV........................................71

Diagnostic Procedure ................................................72

Component Inspection ...............................................73

DTC P0745 LINE PRESSURE SOLENOID VALVE .....74

Description .................................................................74

Page 2

CONTENTS (Cont’d)

Wiring Diagram - AT - LPSV......................................76

Diagnostic Procedure ................................................77

Component Inspection ...............................................78

DTC P1705 THROTTLE POSITION SENSOR .............79

Description .................................................................79

Wiring Diagram - AT - TPS........................................81

Diagnostic Procedure ................................................82

Component Inspection ...............................................85

DTC P1777 STEP MOTOR - CIRCUIT .........................86

Description .................................................................86

Wiring Diagram - AT - STM .......................................88

Diagnostic Procedure ................................................89

Component Inspection ...............................................90

DTC P1778 STEP MOTOR - FUNCTION .....................91

Description .................................................................91

Diagnostic Procedure ................................................93

DTC P1791 CVT FLUID PRESSURE SENSOR ...........94

Description .................................................................94

Wiring Diagram - AT - FPS........................................96

Diagnostic Procedure ................................................97

Component Inspection ...............................................98

CVT SAFE FUNCTION..................................................99

Description .................................................................99

Diagnostic Procedure ..............................................100

CONTROL UNIT (RAM), CONTROL UNIT (ROM).....101

Description ...............................................................101

Diagnostic Procedure ..............................................102

CONTROL UNIT (EEPROM).......................................103

Description ...............................................................103

Diagnostic Procedure ..............................................104

TROUBLE DIAGNOSES FOR NON-DETECTABLE

ITEMS...........................................................................105

PNP Switch, Stop Lamp Switch and Throttle

Position Switch ........................................................105

Wiring Diagram - AT - NONDTC .............................110

ON-VEHICLE SERVICE ..............................................114

Control Cable Adjustment ........................................114

Park/Neutral Position (PNP) Switch Adjustment ..... 114

Differential Side Oil Seal Replacement ...................114

REMOVAL AND INSTALLATION...............................116

Removal................................................................... 116

Inspection.................................................................116

Installation................................................................ 117

Air Breather Hose ....................................................118

CVT Fluid Cooler (Hyper CVT-M6) .........................118

Components.............................................................119

SERVICE DATA AND SPECIFICATIONS (SDS) .......120

General Specifications .............................................120

Stall Revolution ........................................................120

Line Pressure...........................................................120

Removal and Installation .........................................120

AT-2

Page 3

TROUBLE DIAGNOSIS — INDEX

Alphabetical & P No. Index for DTC

ALPHABETICAL INDEX FOR DTC

Items

(CONSULT-II screen terms)

ATF TEMP SEN/CIRC 0710 P0710 AT-54

ENG SPEED SIG 0725 P0725 AT-66

LINE PRESSURE SEN 1791 P1791 AT-94

L/PRESS SOL/CIRC 0745 P0745 AT-74

PNP SW/CIRC 0705 P0705 AT-48

PRI SPEED SIG/CIRC 0715 P0715 AT-59

STEP MOTOR/CIRC 1777 P1777 AT-86

STEP MOTOR/FNCTN 1778 P1778 AT-91

TP SEN/CIRC A/T*3 1705 P1705 AT-79

TCC SOLENOID/CIRC 0740 P0740 AT-69

VEH SPD SEN/CIR A/T 0720 P0720 AT-62

*1: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN. *2: These numbers are prescribed by ISO15031-6. *3: When the fail-safe operation occurs, the MI illuminates.

ECM*1

DTC

CONSULT-II

GST*2

Reference page

NCAT0001

NCAT0001S01

AT-3

Page 4

TROUBLE DIAGNOSIS — INDEX

Alphabetical & P No. Index for DTC (Cont’d)

P NO. INDEX FOR DTC

DTC

CONSULT-II

GST*2

P0705 0705 PNP SW/CIRC AT-48

P0710 0710 ATF TEMP SEN/CIRC AT-54

P0715 0715 PRI SPEED SIG/CIRC AT-59

P0720 0720 VEH SPD SEN/CIR AT AT-62

P0725 0725 ENG SPEED SIG AT-66

P0740 0740 TCC SOLENOID/CIRC AT-69

P0745 0745 L/PRESS SOL/CIRC AT-74

P1705 1705 TP SEN/CIRC A/T*3 AT-79

P1777 1777 STEP MOTOR/CIRC AT-86

P1778 1778 STEP MOTOR/FNCTN AT-91

P1791 1791 LINE PRESSURE SEN AT-94

ECM*1

(CONSULT-II screen terms)

Items

=NCAT0001S02

Reference page

AT-4

Page 5

PRECAUTIONS

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

The Supplemental Restraint System “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a seat belt, help to reduce the risk or severity of injury to the driver and front passenger in a frontal collision. The Supplemental Restraint System consists of air bag modules (located in the center of the steering wheel and on the instrument panel on the passenger side), seat belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable. In addition to the supplemental air bag modules for a frontal collision, the supplemental side air bag used along with the seat belt helps to reduce the risk or severity of injury to the driver and front passenger in a side collision. The supplemental side air bag consists of air bag modules (located in the outer side of front seats), satellite sensor, diagnosis sensor unit (one of components of supplemental air bags for a frontal collision), wiring harness, warning lamp (one of components of supplemental air bags for a frontal collision). Information necessary to service the system safely is included in the RS section of this Service Manual.

WARNING:

! To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death

in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN dealer.

! Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-

sonal injury caused by unintentional activation of the system.

! Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses (except “SEAT BELT PRE-TENSIONER” connector) can be identified with yellow harness connector (and with yellow harness protector or yellow insulation tape before the harness connectors).

NCAT0002

Precautions for On Board Diagnostic (OBD) System of CVT and Engine

The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of a malfunction causing emission deterioration.

CAUTION:

! Be sure to turn the ignition switch “OFF” and disconnect the negative battery terminal before any

repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause the MI to light up.

! Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will

cause the MI to light up due to an open circuit. (Be sure the connector is free from water, grease, dirt, bent terminals, etc.)

! Be sure to route and secure the harnesses properly after work. Interference of the harness with a

bracket, etc. may cause the MI to light up due to a short circuit.

! Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube

may cause the MI to light up due to a malfunction of the EGR system or fuel injection system, etc.

! Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and

ECM before returning the vehicle to the customer.

Precautions

! Before connecting or disconnecting the TCM harness

connector, turn ignition switch OFF and disconnect negative battery terminal. Failure to do so may damage the TCM. Because battery voltage is applied to TCM even if ignition switch is turned off.

NCAT0198

NCAT0003

SEF289H

AT-5

Page 6

Precautions (Cont’d)

PRECAUTIONS

! When connecting or disconnecting pin connectors into or

from TCM, take care not to damage pin terminals (bend or break). Make sure that there are not any bends or breaks on TCM pin terminal, when connecting pin connectors.

SEF291H

Perform TCM input/output signal inspection before replacement.

! Before replacing TCM, perform TCM input/output signal

inspection and make sure whether TCM functions properly or not. (See page AT-41.)

MEF040DA

! After performing each TROUBLE DIAGNOSIS, perform

“DTC (Diagnostic Trouble Code) CONFIRMATION PROCEDURE”. The DTC should not be displayed in the “DTC CONFIRMATION PROCEDURE” if the repair is completed.

SAT652J

! It is very important to perform functional tests whenever they

are indicated.

! Extreme care should be taken to avoid damage to O-rings,

seals and gaskets when assembling.

! When the CVT drain plug is removed, only some of the fluid is

drained. Old CVT fluid will remain in torque converter and CVT fluid cooling system. Always follow the procedures under “Changing CVT Fluid” in the MA section when changing CVT fluid.

Service Notice or Precautions

FAIL-SAFE

NCAT0004

NCAT0004S01

The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major electrical input/output device circuit is damaged. Under Fail-Safe, the vehicle always runs even with a shift lever position of “L” or “D”. The customer may complain of sluggish or poor acceleration. When the ignition key is turned “ON” following Fail-Safe operation, CVT or SPORT indicator lamp blinks for about 8 seconds. [For “TCM SELF-DIAGNOSTIC PROCEDURE (No Tools)”, refer to AT-25.] Fail-Safe may occur without electrical circuit damage if the vehicle is driven under extreme conditions (such as excessive wheel spin followed by sudden braking). To recover normal shift pattern, turn the ignition key “OFF” for 5 seconds, then “ON”.

AT-6

Page 7

PRECAUTIONS

Service Notice or Precautions (Cont’d)

The blinking of the CVT or SPORT indicator lamp for about 8 seconds will appear only once and be cleared. The customer may resume normal driving conditions. Always follow the “WORK FLOW” (Refer to AT-32). The SELF-DIAGNOSIS results will be as follows:

The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor. During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.

OBD SELF-DIAGNOSIS

NCAT0004S04

! CVT self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through

the blinking pattern of the CVT or SPORT indicator. Refer to the table on AT-19 for the indicator used to display each self-diagnostic result.

! The self-diagnostic results indicated by the MI are automatically stored in both the ECM and TCM memo-

ries.

Always perform the procedure “HOW TO ERASE DTC” on AT-16 to complete the repair and avoid unnecessary blinking of the MI.

For details of OBD, refer to EC section (“ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”).

! Certain systems and components, especially those related to OBD, may use a new style slide-

locking type harness connector. For description and how to disconnect, refer to EL section, “Description”, “HARNESS CONNECTOR”.

Wiring Diagrams and Trouble Diagnosis

NCAT0005

When you read wiring diagrams, refer to the followings:

! “HOW TO READ WIRING DIAGRAMS” in GI section ! “POWER SUPPLY ROUTING” for power distribution circuit in EL section

When you perform trouble diagnosis, refer to the followings:

! “HOW TO FOLLOW TEST GROUP IN TROUBLE DIAGNOSIS” in GI section ! “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT” in GI section

AT-7

Page 8

Special Service Tools

PREPARATION

Tool number Tool name

ST2505S001 Oil pressure gauge set 1 ST25051001 Oil pressure gauge 2 ST25052000 Hose 3 ST25053000 Joint pipe 4 ST25054000 Adapter 5 ST25055000 Adapter

KV31103000 Drift

ST35325000 Drift

Description

NT097

NT105

Special Service Tools

Measuring line pressure and governor pressure

Installing differential side oil seal (Use with ST35325000)

a: 59 mm (2.32 in) dia. b: 49 mm (1.93 in) dia.

Installing differential side oil seal (Use with KV31103000)

a: 215 mm (8.46 in) b: 25 mm (0.98 in) dia. c: M12 x 1.5P

NCAT0006

NT417

AT-8

Page 9

OVERALL SYSTEM

CVT Electrical Parts Location

TCM

Front

CVT Electrical Parts Location

Steering column

Indicator C/U

SPORT indicator lamp

Throttle position sensor and throttle position switch

NCAT0008

PNP switch

Control valve connector

Inside control valve

Fluid temperature sensor Fluid pressure sensor Lock-up solenoid Line pressure solenoid Step motor

Secondary speed sensor

Primary speed sensor

Dropping resistor

CVT indicator lamp

SPORT mode switch

Manual mode switch

SAT671J

AT-9

Page 10

Circuit Diagram

OVERALL SYSTEM

Circuit Diagram

NCAT0009

AT-10

YAT250

Page 11

OVERALL SYSTEM

Cross-sectional View — RE0F06A

Steel belt

Sun gear

Side cover

Primary pulley

Cross-sectional View — RE0F06A

Converter housing

Reverse brake

Planet carrier

Forward clutch

Oil pump

NCAT0011

Torque converter

Input shaft

Internal gear

Parking gear

Output gear

Taper roller bearing

Reduction gear

Idler gear

Speedometer drive gear

Secondary pulley

Final gear

AT-11

Differential case

SAT668J

Page 12

Control System

OVERALL SYSTEM

Control System

OUTLINE

=NCAT0014

NCAT0014S01

The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift position and reduces shifting and lock-up shocks.

SENSORS

PNP switch Throttle position sensor Closed throttle position switch Wide open throttle position switch Engine speed signal CVT fluid temperature sensor CVT fluid pressure sensor Primary speed sensor Secondary speed sensor Stop lamp switch Sport mode switch (Hyper CVT only) Indicator control unit (Hyper CVT M6 only) ABS control unit

Shift control Line pressure control Lock-up control

Fail-safe control Self-diagnosis CONSULT-II communication line control Duet-EU control On board diagnosis

TCM

ACTUATORS

Step motor CVT indicator (warning) lamp

(Hyper CVT M6 only) Torque converter clutch solenoid valve Line pressure solenoid valve SPORT indicator lamp (Hyper CVT only)

AT-12

Page 13

OVERALL SYSTEM

Control System (Cont’d)

CONTROL SYSTEM

Wheel

Differential gear

Parking system

Final gear

Belt and Pulley

Forward and reverse change

Oil pressure control

Transaxle

Torque converter

NCAT0014S02

Engine

Oil pump

Control device

Sport mode SW or manual mode SW

Mechanical system Oil system Electrical system

[Hyper CVT-M6]

Position indicator

Indicator C/U

CVT indicator (warning) lamp or SPORT indicator lamp

PNP switch

Primary pulley speed and secondary pulley speed sensor

TCM

Electrical control

Control valve

ECM

ABS C/U

Stop lamp SW

Engine speed sensor

Throttle opening sensor

AT-13

NAT310

Page 14

Control System (Cont’d)

OVERALL SYSTEM

TCM FUNCTION

The function of the TCM is to:

! Receive input signals sent from various switches and sensors. ! Determine required line pressure, shifting point and lock-up operation. ! Send required output signals to the step motor and the respective solenoids.

INPUT/OUTPUT SIGNAL OF TCM

Sensors and actuators Function

PNP switch Detects select lever position and sends a signal to TCM.

Throttle position sensor Detects throttle valve position and sends a signal to TCM.

Closed throttle position switch Detects throttle valve’s fully-closed position and sends a signal to TCM.

Detects a throttle valve position of greater than 1/2 of full throttle and sends a signal to TCM.

Sends a signal to the TCM relaying the operation condition of the brake pedal.

Input

Wide open throttle position switch

Engine speed signal From ECM.

CVT fluid temperature sensor Detects transmission fluid temperature and sends a signal to TCM.

CVT fluid pressure sensor Detects transmission fluid pressure and sends a signal to TCM.

Primary speed sensor Detects primary pulley rpm and sends a signal to TCM.

Secondary speed sensor Detects secondary pulley rpm and sends a signal to TCM.

Stop lamp switch

=NCAT0014S03

NCAT0014S04

Sport mode switch

Indicator control unit*1

ABS control unit Sends a signal to the TCM operation condition of the ABS.

Step motor Regulates pulley position in relation to a signal sent from TCM.

Line pressure solenoid valve

Torque converter clutch solenoid

Output

*1: Hyper CVT M6 models only *2: Hyper CVT M6 models *3: Hyper CVT models

valve

CVT indicator (warning) lamp*2 Shows TCM faults, when CVT control components malfunction.

SPORT indicator lamp*3 Shows the operation condition of the SPORT mode switch. *3

Indicator control unit *1

Sends a signal to the TCM relaying the operation condition of the sport mode switch.

Sends a signal to the TCM operation condition of the manual mode switch in control device.

Regulates (or decreases) line pressure suited to driving conditions in relation to a signal sent from TCM.

Regulates (or decreases) lock-up pressure suited to driving conditions in relation to a signal sent from TCM.

Receives the information of gear position on manual mode from TCM, and sends a signal to indicator.

AT-14

Page 15

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Introduction

NCAT0017

The CVT system has two self-diagnostic systems. The first is the emission-related on board diagnostic system (OBD) performed by the TCM in combination with the ECM. The malfunction is indicated by the MI (malfunction indicator) and is stored as a DTC in the ECM memory but not the TCM memory. The second is the TCM original self-diagnosis indicated by the CVT indicator (warning) lamp or SPORT indicator lamp. The malfunction is stored in the TCM memory. The detected items are overlapped with OBD selfdiagnostic items. For detail, refer to AT-26.

OBD Function for CVT System

NCAT0018

The ECM provides emission-related on board diagnostic (OBD) functions for the CVT system. One function is to receive a signal from the TCM used with OBD-related parts of the CVT system. The signal is sent to the ECM when a malfunction occurs in the corresponding OBD-related part. The other function is to indicate a diagnostic result by means of the MI (malfunction indicator) on the instrument panel. Sensors, switches and solenoid valves are used as sensing elements. The MI automatically illuminates in Two Trip Detection Logic when a malfunction is sensed in relation to CVT system parts.

OBD Diagnostic Trouble Code (DTC)

HOW TO READ DTC AND 1ST TRIP DTC

NCAT0020

NCAT0020S01

DTC and 1st trip DTC can be read by the following methods.

1. ( No Tools) The number of blinks of the malfunction indicator in the Diagnostic Test Mode II (Self-Di-

agnostic Results) Examples: 0705, 0710, 0715, 0720, etc. For details, refer to EC section [“Malfunction Indicator (MI)”, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”]. These DTCs are controlled by NISSAN.

2. (

with CONSULT-II or GST) CONSULT-II or GST (Generic Scan Tool) Examples: P0705, P0710,

P0720, P0725, etc. These DTCs are prescribed by ISO15031-6. (CONSULT-II also displays the malfunctioning component or system.)

! 1st trip DTC No. is the same as DTC No. ! Output of the diagnostic trouble code indicates that the indicated circuit has a malfunction.

However, in case of the Mode II and GST they do not indicate whether the malfunction is still occurring or occurred in the past and returned to normal. CONSULT-II can identify them as shown below. Therefore, using CONSULT-II (if available) is recommended.

A sample of CONSULT-II display for DTC is shown at left. DTC or 1st trip DTC of a malfunction is displayed in SELF-DIAGNOSTIC RESULTS mode for “ENGINE” with CONSULT-II. Time data indicates how many times the vehicle was driven after the last detection of a DTC.

SAT651J

If the DTC is being detected currently, the time data will be “0”.

AT-15

Page 16

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

OBD Diagnostic Trouble Code (DTC) (Cont’d)

SAT581J

If a 1st trip DTC is stored in the ECM, the time data will be “1t”.

SAT582J

Freeze Frame Data and 1st Trip Freeze Frame Data

NCAT0020S0101

The ECM has a memory function, which stores the driving condition such as fuel system status, calculated load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed and vehicle speed at the moment the ECM detects a malfunction. Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data, and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For detail, refer to EC section (“CONSULT-II”, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”). Only one set of freeze frame data (either 1st trip freeze frame data of freeze frame data) can be stored in the ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once freeze frame data (2nd trip detection/MI on) is stored in the ECM memory, 1st trip freeze frame data is no longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the following priorities to update the data.

Prior-

ity

1 Freeze frame data Misfire — DTC: P0300 - P0306 (0300 - 0306)

Fuel Injection System Function — DTC: P0171 (0171), P0172 (0172), P0174 (0174), P0175 (0175)

2 Except the above items (Includes CVT related items)

3 1st trip freeze frame data

Items

Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM memory is erased.

HOW TO ERASE DTC

NCAT0020S02

The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as described following.

! If the battery terminal is disconnected, the diagnostic trouble code will be lost within 24 hours. ! When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode

selector on the ECM.

AT-16

Page 17

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

OBD Diagnostic Trouble Code (DTC) (Cont’d)

The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC related to OBD. For details, refer to EC section (“Emission-related Diagnostic Information”, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”).

! Diagnostic trouble codes (DTC) ! 1st trip diagnostic trouble codes (1st trip DTC) ! Freeze frame data ! 1st trip freeze frame data ! System readiness test (SRT) codes ! Test values ! Distance traveled while MI is activated ! Others

HOW TO ERASE DTC (WITH CONSULT-II)

NCAT0020S03

! If a DTC is displayed for both ECM and TCM, it needs to be erased for both ECM and TCM.

1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least 5 seconds and then turn it “ON” (engine stopped) again.

2. Turn CONSULT-II “ON” and touch “CVT”.

3. Touch “SELF-DIAG RESULTS”.

4. Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.

5. Touch “ENGINE”.

6. Touch “SELF-DIAG RESULTS”.

7. Touch “ERASE”. (The DTC in the ECM will be erased.)

How to erase DTC (With CONSULT-II)

1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least 5 seconds and then turn it “ON” (engine

stopped) again.

2. Turn CONSULT-II “ON”, and touch “CVT”. 3. Turn “SELF DIAGNOSIS”. 4. Touch “ERASE”. (The DTC in

Touch “BACK”

the TCM will be erased.)

5. Touch “ENGINE”. 6. Touch “SELF DIAGNOSIS”. 7. Touch “ERASE”. (The DTC in the ECM will be erased.)

AT-17

SAT681J

Page 18

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

OBD Diagnostic Trouble Code (DTC) (Cont’d)

HOW TO ERASE DTC (WITH GST)

NCAT0020S04

1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least 5 seconds and then turn it “ON” (engine stopped) again.

2. Perform “OBD SELF-DIAGNOSTIC PROCEDURE (No Tools)”. Refer to AT-25. (The engine warm-up step can be skipped when performing the diagnosis only to erase the DTC.)

3. Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC section “Generic Scan Tool (GST)”.

HOW TO ERASE DTC (NO TOOLS)

NCAT0020S05

1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least 5 seconds and then turn it “ON” (engine stopped) again.

2. Perform “TCM SELF-DIAGNOSTIC PROCEDURE (No Tools)”. Refer to AT-25. (The engine warm-up step can be skipped when performing the diagnosis only to erase the DTC.)

3. Change the diagnostic test mode from Mode II to Mode I by turning the mode selector on the ECM. Refer to EC section “HOW TO SWITCH DIAGNOSTIC TEST MODES”.

Malfunction Indicator (MI)

NCAT0021

1. The malfunction indicator will light up when the ignition switch is turned ON without the engine running. This is for checking the lamp.

! If the malfunction indicator does not light up, refer to EL sec-

tion (“Warning Lamps/System Description”, “WARNING LAMPS AND CHIME”). (Or see MI & Data Link Connectors in EC section.)

2. When the engine is started, the malfunction indicator should go off.

SAT652J

If the lamp remains on, the on board diagnostic system has detected an emission-related (OBD) malfunction. For detail, refer to EC section (“ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”).

CONSULT-II

NCAT0022

After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” (AT-19), place check marks for results on the “DIAGNOSTIC WORKSHEET”, AT-31. Reference pages are provided following the items.

NOTICE: ! Additional CONSULT-II information can be found in the Opera-

tion Manual supplied with the CONSULT-II unit.

AT-18

Page 19

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

SELF-DIAGNOSTIC PROCEDURE

(WITH CONSULT-II)

1. Turn on CONSULT-II and touch “ENGINE” for OBD detected items or touch “CVT” for TCM self-diagnosis. If CVT is not displayed, check TCM power supply and ground circuit. Refer to AT-41. If result is NG, refer to EL section (“POWER SUPPLY ROUTING”).

SAT651J

2. Touch “SELF DIAGNOSIS”. Display shows malfunction experienced since the last erasing operation. CONSULT-II performs REAL-TIME SELF-DIAGNOSIS. Also, any malfunction detected while in this mode will be displayed at real time.

CONSULT-II (Cont’d)

NCAT0022S02

SAT584J

SELF-DIAGNOSTIC RESULT TEST MODE

Detected items (Screen terms for CONSULT-II, “SELF DIAGNOSIS” test mode)

“CVT” “ENGINE”

PNP switch circuit ! TCM does not receive the correct volt-

PNP SW/CIRCUIT

Primary speed sensor ! TCM does not receive the proper volt-

I/P PULLY SPD SIG

Secondary speed sensor ! TCM does not receive the proper volt-

VEHICLE SPEED SIG

T/C clutch solenoid valve ! TCM detects an improper voltage drop

T/C CLUTCH SOL/V

PNP SW/CIRC

PRI SPEED SIG/ CIRC

VEH SPD SEN/CIR A/T

TCC SOLENOID/ CIRC

Malfunction is detected when ...

age signal (based on the gear position) from the switch.

age signal from the sensor.

when it tries to operate the solenoid valve.

NCAT0022S03

TCM self-diagnosis OBD (DTC)

Available by

CVT or SPORT

indicator lamp

“CVT” on CON-

SULT-II

— P0705

X P0715

X P0720

X P0740

Available by

malfunction

indicator lamp*2,

“ENGINE” on CON-

SULT-II or GST

Line pressure solenoid valve ! TCM detects an improper voltage drop

LINE PRESSURE S/V

Throttle position sensor, Throttle position switch

THROTTLE POSI SEN

L/PRESS SOL/ CIRC

TP SEN/CIRC A/T

when it tries to operate the solenoid valve.

! TCM receives an excessively low or

high voltage from the sensor.

AT-19

X P0745

X P1705

Page 20

CONSULT-II (Cont’d)

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Detected items (Screen terms for CONSULT-II, “SELF DIAGNOSIS” test mode)

“CVT” “ENGINE”

Engine speed signal ! TCM does not receive the proper volt-

ENGINE SPEED SIG

CVT fluid temperature sensor ! TCM receives an excessively low or

BATT/FLUID TEMP SEN

Stepping motor circuit ! Not proper voltage change of the TCM

STEP MOTOR STEP MOTOR/

Stepping motor function ! Step motor is not operating according

—

CVT fluid pressure sensor ! TCM receives an excessively low or

LINE PRESSURE SEN

ATF TEMP SEN/ CIRC

CIRC

STEP MOTOR/ FNCTN

LINE PRESS SEN

Malfunction is detected when ...

age signal from the ECM.

high voltage from the sensor.

terminal when operating step motor.

to the TCM.

high voltage from the sensor.

TCM self-diagnosis OBD (DTC)

Available by

CVT or SPORT

indicator lamp

“CVT” on CON-

SULT-II

X P0725

X P0710

X P1777

X P1778

X P1791

Available by

malfunction

indicator lamp*2,

“ENGINE” on CON-

SULT-II or GST

CVT SAFE FUNCTION ! TCM is malfunctioning.

CVT SAFE FUNCTION

TCM (RAM) ! TCM memory (RAM) is malfunction-

CONTROL UNIT (RAM)

TCM (ROM) ! TCM memory (ROM) is malfunction-

CONTROL UNIT (ROM)

TCM (EEP ROM) ! TCM memory (EEP ROM) is malfunc-

CONT UNIT (EEP ROM)

Initial start ! This is not a malfunction message

*INITIAL START*

No failure (NO SELF DIAGNOSTIC FAILURE INDICATED FURTHER TESTING MAY BE REQUIRED**)

X: Applicable —: Not applicable *1: These malfunctions cannot be displayed by MI *2: Refer to EC section [“Malfunction Indicator (MI)”, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”].

—

ing.

tioning.

(Whenever shutting off a power supply to the TCM, this message appears on the screen.)

! No failure has been detected.

if another malfunction is assigned to MI.

X—

——

X—

AT-20

Page 21

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

CONSULT-II (Cont’d)

Item Display

Vehicle speed sensor (Secondary speed sensor)

Throttle position sensor THRTL POS

CVT fluid temperature sensor

Battery voltage BATTERY VOLT

Engine speed ENGINE

VHCL SPEED SE [km/h] or [mph] X —

SEN [V]

FLUID TEMP SE [V]

[V]

SPEED [rpm] X X

DATA MONITOR MODE (CVT)

Monitor item

TCM input

signals

X—

Main

signals

Description Remarks

! Vehicle speed com-

puted from signal of revolution sensor is displayed.

! Throttle position sensor

signal voltage is displayed.

! CVT fluid temperature

sensor signal voltage is displayed.

! Signal voltage lowers

as fluid temperature rises.

! Source voltage of TCM

is displayed.

! Engine speed, com-

puted from engine speed signal, is displayed.

NCAT0022S04

When racing engine in “N” or “P” position with vehicle stationary, CONSULT-II data may not indicate 0 km/h (0 mph).

—

Engine speed display may not be accurate under approx. 800 rpm. It may not indicate 0 rpm even when engine is not running.

P/N position switch N POSITION

SW [ON/OFF]

R position switch R POSITION

SW [ON/OFF]

D position switch D POSITION

SW [ON/OFF]

Sport mode switch S POSITION

SW [ON/OFF]

L position switch L POSITION

SW [ON/OFF]

Closed throttle position switch

CLOSED THL/SW [ON/OFF]

! ON/OFF state com-

X—

puted from signal of P/N position SW is displayed.

! ON/OFF state com-

puted from signal of R position SW is displayed.

! ON/OFF state com-

puted from signal of D position SW is displayed.

! ON/OFF status, com-

puted from signal of Sport mode SW, is displayed.

! ON/OFF status, com-

puted from signal of L position SW, is displayed.

! ON/OFF status, com-

puted from signal of closed throttle position SW, is displayed.

—

Wide open throttle position switch

W/O THRL/ P-SW [ON/OFF]

! ON/OFF status, com-

X—

puted from signal of wide open throttle position SW, is displayed.

AT-21

—

Page 22

CONSULT-II (Cont’d)

Item Display

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Monitor item

TCM input

signals

Main

signals

Description Remarks

Gear position GEAR

Selector lever position SLCT LVR POSI

Vehicle speed VEHICLE

SPEED [km/h] or [mph]

Throttle position THROTTLE

POSI [/8]

Line pressure duty LINE PRES

DTY [%] — X

Torque converter clutch solenoid valve duty

TCC S/V DUTY [%]

! Gear position (when

—X

use manual mode) data used for computation by TCM, is displayed.

! Selector lever position

data, used for computation by TCM, is displayed.

! Vehicle speed data,

used for computation by TCM, is displayed.

! Throttle position data,

used for computation by TCM, is displayed.

! Control value of line

pressure solenoid valve, computed by TCM from each input signal, is displayed.

! Control value of torque

converter clutch solenoid valve, computed by TCM from each input signal, is displayed.

—

! A specific value used for

control is displayed if failsafe is activated due to error.

—

! A specific value used for

control is displayed if failsafe is activated due to error.

—

Self-diagnosis display lamp (SPORT or CVT indicator lamp)

CVT fluid pressure sensor LINE PRES-

Primary pulley speed sensor

Secondary pulley speed sensor

Stop lamp switch BRAKE SW

Idle judgement CLSD THL

ABS signal ABS SIGNAL

PAT MONI LAMP [ON/OFF]

SURE [V] X —

I/P PULLY SPD [rpm]

O/P PULLY SPD [rpm]

[ON/OFF] X —

POSI [ON/OFF] — —

[ON/OFF] X —

! Control status of

—X

——

SPORT or CVT indicator lamp is displayed.

! CVT fluid pressure sen-

sor signal voltage is displayed.

! Primary pulley speed

computed from signal of primary pulley speed sensor is displayed.

! Secondary pulley speed

computed from signal of secondary speed sensor is displayed.

! ON/OFF position signal

of stop lamp switch is displayed.

! Idle status judged from

throttle position sensor signal is displayed.

! ABS operation signal

(ON/OFF) from ABS control unit is displayed.

—

Manual mode switch MANU MODE

SW [ON/OFF] X —

AT-22

! ON/OFF position signal

of manual mode switch is displayed.

—

Page 23

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Item Display

Monitor item

TCM input

signals

Main

signals

CONSULT-II (Cont’d)

Description Remarks

Non-manual mode switch NON M MODE

SW [ON/OFF] X —

Up switch UP SW

[ON/OFF] X —

Down switch DOWN SW

[ON/OFF] X —

Step motor coil A S/M COIL [A]

[ON/OFF]

Step motor coil B S/M COIL [B]

[ON/OFF]

Step motor coil C S/M COIL [C]

[ON/OFF]

Step motor coil D S/M COIL [D]

[ON/OFF]

! ON/OFF position signal

of non-manual mode switch is displayed.

! ON/OFF position signal

of up switch is displayed.

! ON/OFF position signal

of down switch is displayed.

! Control valve of step

——

motor coil A, computed by TCM from each input signal is displayed.

! Control valve of step

motor coil B, computed by TCM from each input signal is displayed.

! Control valve of step

motor coil C, computed by TCM from each input signal is displayed.

! Control valve of step

motor coil D, computed by TCM from each input signal is displayed.

—

CVT ratio CVT RATIO [—]

Step PLY CONT

STEP [step]

Line pressure LINE PRES-

SURE [MPa]

Pulley rpm⋅in 2 T RPM [rpm]

CVT ratio 2 T RATIO [—]

Step 2 T STEP [step]

X: Applicable —: Not applicable

—X

——

! Real CVT ratio operated

TCM is displayed.

! Step motor position is

displayed.

! Real line pressure cal-

culated from line pressure sensor voltage with TCM is displayed.

! Target primary pulley

speed operated with TCM is displayed.

! Target changing the

speed ratio operated with TCM is displayed.

! Target step motor posi-

tion operated with TCM is displayed.

—

AT-23

Page 24

CONSULT-II (Cont’d)

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Data link connector

WORK SUPPORT MODE WITH CONSULT-II

1. Turn ignition switch “OFF”.

2. Connect CONSULT-II to Data link connector. Data link connector is located in left side dash panel.

3. Turn ignition switch “ON”.

NRS071

4. Touch “START”.

SAT586J

5. Touch “CVT”.

SAT651J

SAT732J

SAT933J

6. Touch “WORK SUPPORT”.

7. Touch “ENGINE BRAKE ADJUSTMENT”.

8. Touch “START”.

AT-24

Page 25

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

9. Set “ENGINE BRAKE LEVEL” by touching “UP” or “DOWN”.

ENGINE BRAKE LEVEL

0: Initial set value (Engine brake level control is

activated)

OFF: Engine brake level control is disactivated.

10. Turn ignition switch “OFF”, wait at least 5 seconds and then turn ignition switch “ON”.

11. Engine brake level set is completed.

CAUTION:

SAT934J

Mode of “+1” “0” “-1” “-2” “OFF” can be selected by pressing the “UP” “DOWN” on CONSULT screen. However, do not select mode other than “0” and “OFF”. If the “+1” or “-1” or “-2” is selected, that might cause the abnormality of drivability.

CONSULT-II (Cont’d)

DIAGNOSTIC PROCEDURE WITHOUT CONSULT-II

OBD Self-diagnostic Procedure (With GST)

NCAT0022S07

NCAT0022S0701

Refer to EC section [“Generic Scan Tool (GST)”, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”].

OBD Self-diagnostic Procedure (No Tools)

NCAT0022S0702

Refer to EC section [“Malfunction Indicator (MI)”, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”].

TCM Self-diagnostic Procedure (No Tools)

=NCAT0022S0703

Preparation

1. Turn ignition switch to “OFF” position.

2. Disconnect the throttle position switch harness connector.

3. Turn ignition switch to “ON” position.

4. Check continuity of the closed throttle position switch.

Continuity should exist.

(If continuity does not exist, check throttle opener and closed throttle position switch. Then increase vacuum until closed throttle position switch shows continuity.)

5. Connect the throttle position switch harness connector.

6. Warm up the engine.

7. Turn the ignition switch from ON to OFF two more times, and then turn to OFF.

8. In the “P” position of the selector lever, turn the ignition switch ON, and verify that the CVT warning lamp turns on for about 2 seconds.

9. Turn the ignition switch OFF.

10. Press the brake pedal, and shift the selector lever to the “D” position.

11. Turn the ignition switch ON.

12. Release the brake, and shift the selector lever to the “L” position.

13. Fully depress both brake and accelerator pedals all the way to the floor. Without releasing the brake and accelerator pedals, shift the selector lever to the “D” position.

14. Read the display from the CVT warning lamp to complete the diagnosis.

AT-25

Page 26

CONSULT-II (Cont’d)

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Judgement of Self-diagnosis Code

CVT or SPORT indicator lamp*

All judgement flickers are the same.

Self diagnosis start

Start signal 10 judgement flickers

All circuits that can be confirmed by self-diagnosis are OK.

2nd judgement flicker is longer than others.

Light

Shade

SAT436FA

NCAT0022S0704

1st judgement flicker is longer than others.

Light

Shade

SAT437FA

Secondary speed sensor (VEHICLE SPEED SENSOR CVT) circuit is short-circuited or disconnected.

⇒ Go to VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR) (DTC: 0720), AT-62.

3rd judgement flicker is longer than others.

Light

Shade

SAT439FA

Primary speed sensor circuit is short-circuited or disconnected.

⇒ Go to PRIMARY SPEED SENSOR (DTC: 0715), AT-59.

4th judgement flicker is longer than others.

Self diagnosis start

Light

Shade

SAT443FA

Step motor circuit is short-circuited or disconnected.

⇒ Go to STEP MOTOR (DTC: 1777), AT-86.

Light

Shade

SAT441FA

Throttle position sensor circuit is short-circuited or disconnected.

⇒ Go to THROTTLE POSITION SENSOR (DTC: 1705), AT-79.

5th judgement flicker is longer than others.

Light

Shade

SAT445FA

CVT fluid pressure sensor circuit is short-circuited or disconnected.

⇒ Go to CVT FLUID PRESSURE SENSOR (DTC: 1791), AT-94.

AT-26

Page 27

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

CVT or SPORT indicator lamp*

CONSULT-II (Cont’d)

6th judgement flicker is longer than others.

Light

Shade

SAT447FA

Line pressure solenoid valve circuit is short-circuited or disconnected.

⇒ Go to LINE PRESSURE SOLENOID VALVE (DTC: 0745), AT-74.

8th judgement flicker is longer than others.

Self diagnosis start

Light

7th judgement flicker is longer than others.

Light

Shade

SAT449FA

Lock up solenoid valve circuit is short-circuited or disconnected.

⇒ Go to TORQUE CONVERTER CLUTCH SOLENOID VALVE (DTC: 0740), AT-69.

9th judgement flicker is longer than others.

Light

Shade

SAT451FA

CVT fluid temperature sensor is disconnected or TCM power source circuit is damaged.

⇒ Go to CVT FLUID TEMPERATURE SENSOR (DTC: 0710) AND TCM POWER SOURCE, AT-54.

10th judgement flicker is longer than others.

Light

Shade

SAT455FA

! When “4th judgement flicker” and/or “6th judgement flicker” is

displayed, inspect “STEP MOTOR (DTC: 1777)” and/or “LINE PRESSURE SOLENOID VALVE (DTC: 0745)”.

! When neither “4th judgement flicker” nor “6th judgement flicker”

are displayed, replace TCM.

⇒ Go to CVT SAFE FUNCTION, AT-99.

Shade

SAT453FA

Engine speed signal circuit is short-circuited or disconnected.

⇒ Go to ENGINE SPEED SIGNAL (DTC: 0725), AT-66.

Flickers as shown below.

Light

Shade

SAT457FA

Battery voltage is low. Battery has been disconnected for a long time. Battery is connected conversely. (When reconnecting TCM connectors — This is not a problem)

AT-27

Page 28

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

CONSULT-II (Cont’d)

CVT or SPORT indicator lamp*

Lamp does not come on.

Self diagnosis start

Light

Shade

SAT653J

PNP switch, stop lamp switch or throttle position switch circuit is disconnected or TCM is damaged.

⇒ Go to TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS, AT-105.

t1= 2.5 seconds t2= 2.0 seconds t3= 1.0 second t4= 1.0 second *CVT indicator lamp: Hyper CVT M6 SPORT indicator lamp: Hyper CVT

AT-28

Page 29

TROUBLE DIAGNOSIS — INTRODUCTION

Introduction

Sensors

Solenoid valves

INFO.

TCM

ECM

SAT631IA

CAUSE

SAT632I

Introduction

NCAT0023

The TCM receives a signal from the vehicle speed sensor, throttle position sensor or PNP switch and provides shift control or lock-up control via step motor and CVT solenoid valves. The TCM also communicates with the ECM by means of a signal sent from sensing elements used with the OBD-related parts of the CVT system for malfunction-diagnostic purposes. The TCM is capable of diagnosing malfunctioning parts while the ECM can store malfunctions in its memory. Input and output signals must always be correct and stable in the operation of the CVT system. The CVT system must be in good operating condition and be free of valve seizure, solenoid valve malfunction, etc. It is much more difficult to diagnose a problem that occurs intermittently rather than continuously. Most intermittent problems are caused by poor electric connections or improper wiring. In this case, careful checking of suspected circuits may help prevent the replacement of good parts. A visual check only may not find the cause of the problems. A road test with CONSULT-II (or GST) or a circuit tester connected should be performed. Follow the “Work Flow”. Refer to AT-32. Before undertaking actual checks, take a few minutes to talk with a customer who approaches with a driveability complaint. The customer can supply good information about such problems, especially intermittent ones. Find out what symptoms are present and under what conditions they occur. A “Diagnostic Worksheet” like the example (AT-31) should be used. Start your diagnosis by looking for “conventional” problems first. This will help troubleshoot driveability problems on an electronically controlled engine vehicle.

Also check related Service bulletins for information.

SEF234G

AT-29

Page 30

Introduction (Cont’d)

TROUBLE DIAGNOSIS — INTRODUCTION

DIAGNOSTIC WORKSHEET Information from Customer

KEY POINTS

WHAT ..... Vehicle & CVT model

WHEN..... Date, Frequencies

WHERE..... Road conditions

HOW..... Operating conditions, Symptoms

Customer name MR/MS Model & Year VIN

Trans. model Engine Mileage

Incident Date Manuf. Date In Service Date

Frequency # Continuous # Intermittent ( times a day)

# Vehicle does not move. ( # Any position # Particular position)

Symptoms # Lockup malfunction

# Shift point too high or too low.

# Shift shock or slip ( # N , D # Lockup # Any drive position)

# Noise or vibration

# No pattern select

# Others

()

=NCAT0023S01

NCAT0023S0101

SPORT indicator lamp or CVT indicator (warning) lamp

Malfunction indicator (MI) # Continuously lit # Not lit

Blinks for about 8 seconds.

# Continuously lit # Not lit

AT-30

Page 31

TROUBLE DIAGNOSIS — INTRODUCTION

Introduction (Cont’d)

Diagnostic Worksheet

1. # Read the Fail-safe and listen to customer complaints. AT-6

2. # CHECK CVT FLUID AT-34

# Leakage (Follow specified procedure) # Fluid condition # Fluid level

3. # Perform STALL TEST and LINE PRESSURE TEST. AT-34, 35

# Stall test — Mark possible damaged components/others.

# Forward clutch # Reverse brake

# Engine # Line pressure is low

# Line Pressure test — Suspected parts:

4. # Perform all ROAD TEST and mark required procedures. AT-36

4-1. Check before engine is started. AT-37

# SELF-DIAGNOSTIC PROCEDURE — Mark detected items.

# PNP switch, AT-48. # CVT fluid temperature sensor, AT-54. # Vehicle speed sensor (Secondary speed sensor), AT-62. # Engine speed signal, AT-66. # Torque converter clutch solenoid valve, AT-69. # Line pressure solenoid valve, AT-74. # Step motor, AT-86, 91. # CVT fluid pressure sensor, AT-94. # Throttle position sensor, AT-79. # Stop lamp and throttle position switches. # CVT fluid temperature sensor and TCM power source, AT-54. # Primary speed sensor, AT-59. # PNP switch, stop lamp switch, throttle position switch AT-105. # Battery # Others

=NCAT0023S0102

5. # For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts. AT-19

6. # Perform all ROAD TEST and re-mark required procedures. AT-36

7. # Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts. Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible symptoms and the component inspection orders.)

8. # Erase DTC from TCM and ECM memories. AT-16

AT-41 AT-54

AT-31

Page 32

Work Flow

TROUBLE DIAGNOSIS — INTRODUCTION

Work Flow

HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR

=NCAT0024

NCAT0024S01

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. In general, each customer feels differently about a problem. It is important to fully understand the symptoms or conditions for a customer complaint. Make good use of the two sheets provided, “INFORMATION FROM CUSTOMER” (AT-30) and “DIAGNOSTIC WORKSHEET” (AT-31), to perform the best troubleshooting possible.

AT-32

Page 33

TROUBLE DIAGNOSIS — INTRODUCTION

Work Flow (Cont’d)

WORK FLOW CHART

CHECK IN

LISTEN TO CUSTOMER COMPLAINTS AND FILL OUT “INFORMATION FROM CUSTOMER”, *1

CHECK, PRINT OUT OR WRITE DOWN (1ST TRIP) DTC AND FREEZE FRAME DATA. (PRE-CHECK) THEN ERASE. PASTE IT IN REPAIR ORDER SHEET. ALSO CHECK RELATED SERVICE BULLETINS.

CHECK A/T FLUID LEVEL AND CONDITION. IF NG, PLACE CHECK ON THE DIAGNOSTIC WORKSHEET, *2.

PERFORM STALL TEST AND LINE PRESSURE TEST.

PERFORM “DTC CONFIRMATION PROCEDURE” IF THE (1ST TRIP) DTC IS AVAILABLE. PERFORM ROAD TEST AND PLACE CHECKS FOR NG ITEMS ON THE DIAGNOSTIC WORKSHEET.

No NG item or NG items not including any OBD DTC or TCM self-diagnostic items

● FOR OBD or TCM SELF-DIAGNOSIS NG ITEMS:

-INSPECT EACH COMPONENT.

-REPAIR/REPLACE.

● PERFORM DTC CONFIRMATION PROCEDURE OR

ROAD TEST AND PLACE CHECKS FOR NG ITEMS ON THE DIAGNOSTIC WORKSHEET AGAIN.

NG items including OBD (1st trip) DTC or TCM self-

diagnostic item

Refer to FAIL-SAFE Service Notice or

Precautions, *3.

Refer to CVT Fluid Check, *4.

Refer to Stall Test and Line Pressure Test, *5.

Follow ROAD TEST procedure, *6.

● Refer to CONSULT-II, *7.

● Perform ROAD TEST for all items.

● Proceed if self-diagnosis detects no malfunc-

tion. (Non-self-diagnostic items, especially those that require CVT removal, should be repaired in the following steps.)

=NCAT0024S02

● FOR ALL REMAINING MALFUNCTIONS:

-INSPECT EACH COMPONENT.

-REPAIR/REPLACE.

● PERFORM ROAD TEST AND CONFIRM ALL MALFUNCTIONS

ARE ELIMINATED.

ERASE DTC FROM TCM AND ECM MEMORIES.

FINAL CHECK

Confirm that the incident is completely fixed by performing BASIC INSPECTION and DTC CONFIRMATION PROCEDURE. Then, erase the unnecessary (already fixed) 1st trip DTCs in ECM and TCM.

*1: AT-30 *2: AT-31 *3: AT-6 *4: AT-34 *5: AT-34, 35

*6: AT-36 *7: AT-18 *8: AT-15 *9: AT-26 *10: AT-48

AT-33

Refer to

● ON BOARD DIAGNOSTIC SYSTEM

DESCRIPTION, *8 - *9.

● TROUBLE DIAGNOSIS FOR DTC, *10 - *11.

● TROUBLE DIAGNOSES FOR SYMPTOMS,

*12.

Refer to HOW TO ERASE DTC, *13.

Refer to DTC CONFIRMATION PROCEDURE.

*14 - *15.

CHECK OUT

*11: AT-94 *12: AT-110 *13: AT-16 *14: AT-49 *15: AT-95

SAT086JC

Page 34

CVT Fluid Check

TROUBLE DIAGNOSIS — BASIC INSPECTION

Fluid leakage

SAT767B

SAT288G

CVT Fluid Check

FLUID LEAKAGE CHECK

NCAT0025

NCAT0025S01

1. Clean area suspected of leaking. — for example, mating surface of converter housing and transmission case.

2. Start engine, apply foot brake, place selector lever in “D” position and wait a few minutes.

3. Stop engine.

4. Check for fluid leakage.

FLUID CONDITION CHECK

NCAT0025S02

SAT638A

Fluid color Suspected problem

Dark or black with burned odor Wear of frictional material

Milky pink Water contamination — Road water

entering through filler tube or breather

Varnished fluid, light to dark brown and tacky

FLUID LEVEL CHECK

Oxidation — Over or under filling, — Overheating

NCAT0025S03

Refer to MA section (“Checking CVT Fluid”, “CHASSIS AND BODY MAINTENANCE”).

Stall Test

STALL TEST PROCEDURE

NCAT0026

NCAT0026S01

1. Check CVT fluid and engine oil levels. If necessary, add.

2. Drive vehicle for approx. 10 minutes or until engine oil and CVT fluid reach operating temperature.

CVT fluid operating temperature:

50 - 80°C (122 - 176°F)

SAT647B

AT-34

Page 35

Less than 5 sec.

TROUBLE DIAGNOSIS — BASIC INSPECTION

Stall Test (Cont’d)

3. Set parking brake and block wheels.

4. Install a tachometer where it can be seen by driver during test.

! It is good practice to mark the point of specified engine

rpm on indicator.

SAT513G

5. Start engine, apply foot brake, and place selector lever in D position.

6. Accelerate to wide open throttle gradually while applying foot brake.

7. Quickly note the engine stall revolution and immediately release throttle.

! During test, never hold throttle wide open for more than 5

seconds.

Stall revolution:

2,350 - 2,850 rpm

SAT514G

Line pressure test port

SAT771B

SAT670J

8. Move selector lever to “N” position.

9. Cool off CVT fluid.

! Run engine at idle for at least one minute.

Line Pressure Test

LINE PRESSURE TEST PORTS

NCAT0027

NCAT0027S01

Location of line pressure test ports are shown in the illustration.

! Always replace pressure plugs as they are self-sealing

bolts.

LINE PRESSURE TEST PROCEDURE

NCAT0027S02

1. Check CVT fluid and engine oil levels. If necessary, add fluid or oil.

2. Drive vehicle for approx. 10 minutes or until engine oil and CVT fluid reach operating temperature.

CVT fluid operating temperature:

50 - 80°C (122 - 176°F)

SAT647B

AT-35

Page 36

Line Pressure Test (Cont’d)

TROUBLE DIAGNOSIS — BASIC INSPECTION

3. Install pressure gauge to corresponding line pressure port.

4. Set parking brake and block wheels.

! Continue to depress brake pedal fully while line pressure

test is being performed at stall speed.

ROAD TEST PROCEDURE

1. Check before engine is started.

2. Cruise test.

SAT513G

SAT493G

SAT692J

5. Start engine and measure line pressure at idle and stall speed.

! When measuring line pressure at stall speed, follow the

stall test procedure.

Line pressure: Refer to SDS, AT-120.

Road Test

DESCRIPTION

NCAT0028

NCAT0028S01

! The purpose of the test is to determine overall performance of

CVT and analyze causes of problems.

! The road test consists of the following three parts:

1. Check before engine is started

2. Cruise test

SAT496G

! Before road test, familiarize yourself with all test procedures

and items to check.

! Conduct tests on all items until specified symptom is found.

Troubleshoot items which check out No Good after road test. Refer to “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION” and “TROUBLE DIAGNOSIS FOR SYMPTOMS”, AT-15, AT-26 and AT-110.

AT-36

Page 37

TROUBLE DIAGNOSIS — BASIC INSPECTION

Road Test (Cont’d)

1. CHECK BEFORE ENGINE IS STARTED

1 CHECK SPORT OR CVT INDICATOR LAMP

1. Park vehicle on flat surface.

2. Move selector lever to “P” position.

SPORT or CVT

3. Turn ignition switch to “OFF” position. Wait at least 5 seconds.

4. Turn ignition switch to “ON” position. (Do not start engine.)

5. Does CVT or SPORT indicator lamp come on for about 2 seconds?

Yes or No

Yes ! GO TO 2.

No ! Stop ROAD TEST.

=NCAT0028S02

SAT967IA

2 CHECK CVT OR SPORT INDICATOR LAMP

Does CVT or SPORT indicator lamp flicker for about 8 seconds?

Yes or No

Yes ! Perform self-diagnosis and check NG items on the DIAGNOSTIC WORKSHEET, AT-31.

No ! 1. Turn ignition switch to “OFF” position.

Refer to TCM SELF-DIAGNOSIS PROCEDURE (NO TOOLS), AT-25.

2. Perform self-diagnosis and note NG items. Refer to TCM SELF-DIAGNOSIS PROCEDURE (NO TOOLS), AT-25.

3 TEST DRIVE

Drive the vehicle and verify that there are no abnormalities.

! TEST END

2. CRUISE TEST

NCAT0028S04

! Check all items listed in Parts 1 through 3.

SAT601J

With CONSULT-II

NCAT0028S0401

! Using CONSULT-II, conduct a cruise test and record the result. ! Print the result and ensure that shifts and lock-ups take place

as per Shift Schedule.

AT-37

Page 38

Road Test (Cont’d)

TROUBLE DIAGNOSIS — BASIC INSPECTION

Data link connector

NRS071

SAT586J

CONSULT-II Setting Procedure

NCAT0028S0402

1. Turn ignition switch “OFF”.

2. Connect CONSULT-II to Data link connector. Data link connector is located in left side dash panel.

3. Turn ignition switch “ON”.

4. Touch “START”.

5. Touch “CVT”.

SAT651J

SAT732J

PAT902H

6. Touch “DATA MONITOR”.

7. Touch “MAIN SIGNALS” to set recording condition.

8. See “Numerical Display”, “Barchart Display” or “Line Graph Display”.

9. Touch “START”.

AT-38

Page 39

TROUBLE DIAGNOSIS — BASIC INSPECTION

10. When performing cruise test, touch “Store Data”.

PAT071H

11. After finishing cruise test part 1, touch “STOP”.

Road Test (Cont’d)

PAT072H

PAT301C

SAT608J

12. Touch “STORE”.

13. Touch “DISPLAY”.

SAT609J

AT-39

Page 40

Road Test (Cont’d)

TROUBLE DIAGNOSIS — BASIC INSPECTION

14. Touch “PRINT”.

15. Check the monitor data printed out.

16. Continue cruise test part 2 and 3.

SAT610J

SAT417J

Without CONSULT-II

NCAT0028S0403

! Throttle position sensor can be checked by voltage across

terminals 41 and 42 of TCM. Refer to “Road Test”, AT-36.

AT-40

Page 41

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

TCM Terminals and Reference Value

Terminal

SAT216J

TCM Terminals and Reference Value

PREPARATION

NCAT0030

NCAT0030S01

! Measure voltage between each terminal and terminal 25 or 48

by following “TCM INSPECTION TABLE”.

TCM HARNESS CONNECTOR TERMINAL LAYOUT

NCAT0030S02

SAT403J

TCM INSPECTION TABLE

(Data are reference values.)

Terminal

No.

1 OR/L

2 P/B

3 GY/R

5 *1 W/L DT1

6 *1 W/PU DT2 — —

7 *1 R/W DT3 — —

8 *1 L/R DT5 — —

Wire color Item Condition

When releasing accelerator pedal

Line pressure solenoid valve

Line pressure solenoid valve (with dropping resistor)

Torque converter clutch solenoid valve

after warming up engine.

When depressing accelerator pedal fully after warming up engine.

When releasing accelerator pedal after warming up engine.

When depressing accelerator pedal fully after warming up engine.

When CVT performs lock-up. Approx. 12.0V

When CVT does not perform lockup.

Approx. 2.8V

Approx. 1.4V

Approx. 11.0V

Approx. 4.0V

Approx. 0V

— —

NCAT0030S03

Judgement

standard

9 *1 LG/B DT4 — —

When turning ignition switch to “ON”.

10 G/W Power source

When turning ignition switch to “OFF”.

Battery voltage

Approx. 0V

AT-41

Page 42

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

TCM Terminals and Reference Value (Cont’d)

Terminal

No.

11 PU Step motor A

12 L/W

13 OR/B

15 *1 PU/Y — — —

16 Y

17 LG

Wire color Item Condition

Within 2 seconds after key switch “ON”, the time measurement by using the pulse width measurement function (Hi level) of CON-

Step motor B

CVT or SPORT indicator lamp

Closed throttle position switch (in throttle position switch)

Wide open throttle position switch (in throttle position switch)

SULT-II.

! CONSULT-II cable connected to data link connector. ! This inspection cannot be measured by circuit tester.

When CVT or SPORT indicator lamp illuminates

When CVT or SPORT indicator lamp does not illuminate

When releasing accelerator pedal after warming up engine.

When depressing accelerator pedal after warming up engine.

When depressing accelerator pedal more than half-way after warming up engine.

When releasing accelerator pedal after warming up engine.

Judgement

30.0 msec

10.0 msec

Approx. 0V

Battery voltage

Approx. 0V

Battery voltage

Approx. 0V

standard

18 SB ABS control unit

19 G/W Power source

20 L/Y Step motor C

21 P/L Step motor D 10.0 msec.

22 GY

23 BR/Y ABS control unit

25 B Ground

Sport mode switch

Within 2 seconds after key switch “ON”, the time measurement by using the pulse width measurement function (Hi level) of CONSULT-II.

! CONSULT-II cable connected to data link connector. ! This inspection cannot be measured by circuit tester.

When driving slowly.

Same as No. 10

When SPORT mode switch in “ON” position.

When SPORT mode switch in “OFF” position.

When ABS operates. Approx. 0V

When ABS does not operate. 5.6 - 10.0V

— —

Change 0 Battery voltage

30.0 msec

Approx. 0V

Approx. 10V

27 L/OR

PNP switch “L” position

AT-42

When setting selector lever to “L” position.

When setting selector lever to other positions.

Battery voltage

Approx. 0V

Page 43

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

TCM Terminals and Reference Value (Cont’d)

Terminal

No.

28 W/L

29 G/R

30 *2 G/B —

31 *2 GY/L — — —

32 G

33 PU/W

34 LG

Wire color Item Condition

When turning ignition switch to

Power source (Memory backup)

Secondary speed sensor

Throttle position sensor (Power source)

Indicator control unit

PNP switch “D” position

When driving (D position, 20 km/h), the pulse measurement by using the pulse measurement function of CONSULT-II.

! CONSULT-II cable connected to data link connector. ! This inspection cannot be measured by circuit tester.

“OFF”.

When turning ignition switch to “ON”.

When turning ignition switch to “ON”

When turning ignition switch to “OFF”

When setting selector lever to any position.

When setting selector lever to “D” position.

When setting selector lever to other positions.

— —

Judgement

Battery voltage

Approx. 600 Hz

4.5 - 5.5V

Approx. 0V

1.5 - 2.0V

Battery voltage

Approx. 0V

standard

35 G/W

36 G/R

37 W/G

38 G/Y

39 L/OR

PNP switch “R” position

PNP switch “N” or “P” position

CVT fluid pressure sensor

Primary speed sensor

Engine speed signal

When setting selector lever to “R” position.

When setting selector lever to other positions.

When setting selector lever to “N” or “P” position.

When setting selector lever to other positions.

When engine runs at idle speed. Approx. 1.0V

When engine runs at stall speed. Approx. 4.0V

When driving (L position, 20 km/h), the pulse measurement by using the pulse measurement function of CONSULT-II.

! CONSULT-II cable connected to data link connector. ! This inspection cannot be measured by circuit tester.

When engine runs at idle speed. 0.5 - 1.5V

Battery voltage

Approx. 0V

Battery voltage

Approx. 0V

Approx. 900 Hz

AT-43

Page 44

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

TCM Terminals and Reference Value (Cont’d)

Terminal

No.

41 GY

42 B/W

45 R/G Stop lamp switch

46 P/L

47 Y/PU

48 B Ground — —

Wire color Item Condition

When depressing accelerator pedal Throttle position sensor

Throttle position sensor (Ground)

CVT fluid pressure sensor (Power source)

CVT fluid temperature sensor

slowly after warming up engine.

(Voltage rises gradually in response

to throttle position.)

When depressing brake pedal Battery voltage

When releasing brake pedal Approx. 0V

When CVT fluid temperature is

20°C (68°F).

When CVT fluid temperature is

80°C (176°F).

Fully-closed throttle: Approximately

0.3V Fully-open throttle: Approximately 3V

— —

— 4.5 - 5.5V

Approximately

1.5V

Approximately

0.5V

Judgement

standard

*1: This terminal is connected to the ECM. *2: These terminals are connected to the Data link connector for CONSULT-II.

AT-44

Page 45

TROUBLE DIAGNOSIS FOR POWER SUPPLY

Wiring Diagram — CVT — MAIN

BATTERY

ENGINE CONTROL MODULE RELAY

Wiring Diagram — CVT — MAIN

OFF

STOP LAMP SWITCH

FUSE BLOCK (J/B)

Refer to EL-POWER.

OFF

STOP LAMP SWITCH

NCAT0031

: Detectable line for DTC

: Non-detectable line for DTC

: LHD models

: RHD models

ECM

AT-45

TCM (TRANSMISSION CONTROL MODULE)

Refer to last page (foldout page).

YAT201

Page 46

TROUBLE DIAGNOSIS FOR POWER SUPPLY

Wiring Diagram — CVT — MAIN (Cont’d)

TCM TERMINALS AND REFERENCE VALUE

Remarks: Specification data are reference values.

Terminal

No.

10 G/W Power source

19 G/W Power source Same as No. 10

25 B Ground — —

28 W/L

48 B Ground

Wire color Item Condition

When turning ignition switch to

“ON”.

When turning ignition switch to

“OFF”.

When turning ignition switch to

Power source (Memory backup)

“OFF”.

When turning ignition switch to

“ON”.

— —

NCAT0031S01

Judgement

standard

Battery voltage

Approx. 0V

Battery voltage

DIAGNOSTIC PROCEDURE

1 CHECK TCM POWER SOURCE

1. Turn ignition switch to “ON” position. (Do not start engine.)

2. Check voltage between TCM terminals 10, 19, 28 and ground.

Voltage: Battery voltage

3. Turn ignition switch to “OFF” position.

4. Check voltage between TCM terminal 28 and ground.

Voltage: Battery voltage

OK or NG

OK ! GO TO 2.

NG ! Check the following items:

! Harness for short or open between ignition switch and TCM terminals 10, 19 and 25

(Main harness)

! Ignition switch and fuse

Refer to EL section (“POWER SUPPLY ROUTING”).

NCAT0031S03

SAT332J

AT-46

Page 47

TROUBLE DIAGNOSIS FOR POWER SUPPLY

2 CHECK TCM GROUND CIRCUIT

1. Turn ignition switch to “OFF” position.

2. Disconnect TCM harness connector.

3. Check continuity between terminals 25, 48 and ground.

Continuity should exist.

Wiring Diagram — CVT — MAIN (Cont’d)

If OK, check harness for short to ground and short to power.

OK or NG

OK ! INSPECTION END

NG ! Repair open circuit or short to ground or short to power in harness or connectors.

SAT333J

AT-47

Page 48

Description

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH

Remarks: Specification data are reference values.

Terminal

No.

27 L/OR

34 LG

Wire color Item Condition

PNP switch “L” position

PNP switch “D” position

Description

NCAT0032

! The PNP switch assembly includes a transmission range

switch.

! The transmission range switch detects the selector lever posi-

tion and sends a signal to the TCM.

TCM TERMINALS AND REFERENCE VALUE

When setting selector lever to “L” position.

When setting selector lever to other positions.

When setting selector lever to “D” position.

When setting selector lever to other positions.

Battery voltage

Approx. 0V

Battery voltage

Approx. 0V

NCAT0032S01

Judgement

standard

When setting selector lever to “R”

35 G/W

36 G/R

PNP switch “R” position

PNP switch “N” or “P” position

position.

When setting selector lever to other positions.

When setting selector lever to “N” or “P” position.

When setting selector lever to other positions.

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: PNP SW/CIRC

: P0705

: MI Code No. 0705

TCM does not receive the correct voltage signal from the switch based on the gear position.

! Harness or connectors

(The PNP switch circuit is open or shorted.)

! PNP switch

Battery voltage

Approx. 0V

Battery voltage

Approx. 0V

NCAT0032S02

AT-48

Page 49

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed. NOTE:

If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

SAT651J

SAT654J

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “CVT” with CONSULT-II.

2) Make sure that output voltage of CVT fluid temperature snesor is within the range below.

FLUID TEMP SEN: 0.5 - 1.5V

If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool down the fluid)

3) Select “DATA MONITOR” mode for “ENGINE” with CONSULTII.

4) Start engine and maintain the following conditions for at least 15 consecutive seconds.

VHCL SPEED SE: 10 km/h (6 MPH) or more THRTL POS SEN: More than 1.3V Selector lever: D position ENG SPEED: 450 rpm or more

If the check result is “NG”, go to “Diagnostic Procedure”, AT-51.

With GST

Description (Cont’d)

NCAT0032S03

Follow the procedure “With CONSULT-II”.

AT-49

Page 50

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH

Wiring Diagram — AT — PNP/SW

NCAT0199

AT-50

YAT251

Page 51

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH

Diagnostic Procedure

1 CHECK PNP SWITCH CIRCUIT (With CONSULT-II)

With CONSULT-II

1. Turn ignition switch to “ON” position. (Do not start engine.)

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out “P/N”, “R”, “D” and “L” position switches moving selector lever to each position. Check the signal of the selector lever position is indicated properly.

OK or NG

OK ! GO TO 3.

NG ! Check the following items:

! PNP switch

Refer to “Component Inspection”, AT-53.

! Harness for short or open between ignition switch and PNP switch (Main harness) ! Harness for short or open between PNP switch and TCM (Main harness) ! Ignition switch and fuse

Refer to EL section (“POWER SUPPLY ROUTING”).

! Diode (P, N positions)

NCAT0033

SAT651J

2 CHECK PNP SWITCH CIRCUIT (Without CONSULT-II)

Without CONSULT-II

1. Turn ignition switch to “ON” position. (Do not start engine.)

2. Check voltage between TCM terminals 27, 34, 35, 36 and ground while moving selector lever through each position.

Voltage:

B: Battery voltage 0: 0V

Lever position

OK ! GO TO 3.

NG ! Check the following items:

! PNP switch

Refer to “Component Inspection”, AT-53.

! Harness for short or open between ignition switch and PNP switch (Main harness) ! Harness for short or open between PNP switch and TCM (Main harness) ! Ignition switch and fuse

Refer to EL section (“POWER SUPPLY ROUTING”).

! Diode (P, N positions)

Terminal No.

OK or NG

MTBL0312

AT-51

Page 52

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH

Diagnostic Procedure (Cont’d)

3 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-49.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-52

Page 53

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH

Component Inspection

PARK/NEUTRAL POSITION SWITCH

=NCAT0034

NCAT0034S01

1. Check continuity between terminals 1 and 2 and between terminals 3 and 5, 6, 7, 8, 9 while moving manual shaft through each position.

Lever position Terminal No.

P3—71—2

R3—8

N3—91—2

D3—6

L3—5

2. If NG, check again with control cable disconnected from manual shaft of CVT assembly. Refer to step 1.

3. If OK on step 2, adjust control cable. Refer to AT-114.

4. If NG on step 2, remove PNP switch from CVT and check continuity of PNP switch terminals. Refer to step 1.

5. If OK on step 4, adjust PNP switch. Refer to AT-114.

6. If NG on step 4, replace PNP switch.

AT-53

Page 54

Description

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

2.5

2.0

1.5

1.0

0.5

(-40) (-4) (32) (68) (104) (140) (176) (212) (248) (284) (320)

°C (°F)

SAT021J

Remarks: Specification data are reference values.

Monitor item Condition Specification

CVT fluid temperature sensor

Remarks: Specification data are reference values.

Description

NCAT0035

The CVT fluid temperature sensor detects the CVT fluid temperature and sends a signal to the TCM.

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Cold [20°C (68°F)]

Hot [80°C (176°F)]

Approximately 1.5V

Approximately 0.5V

TCM TERMINALS AND REFERENCE VALUE

NCAT0035S01

NCAT0035S02

Terminal

No.

Wire color Item Condition

42 B

47 Y/PU

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: ATF TEMP SEN/CIRC

: P0710

: MI Code No. 0710

Throttle position sensor (Ground)

CVT fluid temperature sensor

When CVT fluid temperature is 20°C (68°F).

When CVT fluid temperature is 80°C (176°F).

ON BOARD DIAGNOSIS LOGIC

TCM receives an excessively low or high voltage from the sensor.

Judgement

standard

— —

Approximately

1.5V

Approximately

0.5V

NCAT0035S03

! Harness or connectors

(The sensor circuit is open or shorted.)

! CVT fluid temperature sensor

AT-54

Page 55

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

Description (Cont’d)

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed. NOTE:

If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

SAT651J

SAT654J

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

2) Start engine and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to maintain continuously.)

ENG SPEED: 450 rpm or more VHCL SPEED SE: 10 km/h (6 MPH) or more THRTL POS SEN: More than 1.3 V Selector lever: D position

If the check result is NG, go to “Diagnostic Procedure”, AT-57.

With GST

Follow the procedure “With CONSULT-II”.

NCAT0035S04

AT-55

Page 56

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

Wiring Diagram — AT — FTS

CONTROL VALVE (CVT FLUID TEMPERATURE SENSOR)

: Detectable line for DTC

: Non-detectable line for DTC

NCAT0200

TCM (TRANSMISSION CONTROL MODULE)

AT-56

ECM

YAT203

Page 57

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

Diagnostic Procedure

1 CHECK CVT FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY

1. Turn ignition switch to “OFF” position.

2. Disconnect terminal cord assembly connector in engine compartment.

3. Check resistance between terminals 6 and 7 when CVT is cold.

Resistance:

Cold [20°C (68°F)]

Approximately 2.5 kΩ

4. Reinstall any part removed.

OK or NG

OK (With CONSULT-II) ! GO TO 2.

OK (Without CONSULT-II) ! GO TO 3.

NG ! Replace CVT assembly

NCAT0036

SAT419JA

2 CHECK INPUT SIGNAL OF CVT FLUID TEMPERATURE SENSOR (With CONSULT-II)

With CONSULT-II

1. Start engine.

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out the value of “FLUID TEMP SE”.

Voltage:

Cold [20°C (68°F)] → Hot [80°C (176°F)]:

Approximately 1.5V → 0.5V

OK or NG

OK ! GO TO 4.

NG ! Check the following item:

! Harness for short to ground or short to power or open between TCM, ECM and termi-

nal cord assembly (Main harness)

! Ground circuit for ECM

Refer to EC section (“TROUBLE DIAGNOSIS FOR POWER SUPPLY”).

AT-57

Page 58

DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT

Diagnostic Procedure (Cont’d)

3 CHECK INPUT SIGNAL OF CVT FLUID TEMPERATURE SENSOR (Without CONSULT-II)

Without CONSULT-II

1. Start engine.

2. Check voltage between TCM terminal 47 and ground while warming up CVT.

Voltage:

Cold [20°C (68°F)] → Hot [80°C (176°F)]:

Approximately 1.5V → 0.5V

3. Turn ignition switch to “OFF” position.

4. Disconnect TCM harness connector.

5. Check continuity between terminal 42 and ground.

Continuity should exist.

SAT420JA

If OK, check harness for short to ground and short to power.

OK or NG

OK ! GO TO 4.

NG ! Check the following item:

! Harness for short to ground or short to power or open between TCM, ECM and termi-

nal cord assembly (Main harness)

! Ground circuit for ECM

Refer to EC section (“TROUBLE DIAGNOSIS FOR POWER SUPPLY”).

4 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-55.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

SAT421J

AT-58

Page 59

DTC P0715 PRIMARY SPEED SENSOR

Description

Remarks: Specification data are reference values.

Terminal

No.

38 G/Y

: PRI SPEED SIG/CIRC

: P0715

: MI Code No. 0715

Wire color Item Condition

Primary speed sensor

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

TCM does not receive the proper voltage signal from the sensor.

SAT651J

Description

The primary speed sensor detects the primary pulley revolution speed and sends a signal to the ECM.

TCM TERMINALS AND REFERENCE VALUE

Judgement

standard

When driving (L position, 20 km/h), the pulse measurement by using the pulse measurement function of CONSULT-II.

ON BOARD DIAGNOSIS LOGIC

! Harness or connectors

(The sensor circuit is open or shorted.)

! Primary speed sensor

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

! Always drive vehicle at a safe speed. ! Be careful not to rev engine into the red zone on the

tachometer.

NOTE: If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

Approx. 900 Hz

NCAT0220

NCAT0220S01

NCAT0220S02

NCAT0220S03

SAT971J

SAT654J

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

2) Start engine and maintain the following conditions for at least 5 consecutive seconds.

VHCL SPEED SE: 10 km/h (6 MPH) or more THRTL POS SEN: More than 1.3V Selector lever: D position ENG SPEED: 450 rpm or more Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.

If the check result is NG, go to “Diagnostic Procedure”, AT-61.

With GST

Follow the procedure “With CONSULT-II”.

AT-59

Page 60

Wiring Diagram — AT — VSSA/T

DTC P0715 PRIMARY SPEED SENSOR

Wiring Diagram — AT — VSSA/T

PRIMARY SPEED SENSOR

NCAT0221

: Detectable line for DTC

: Non-detectable line for DTC

AT-60

TCM (TRANSMISSION CONTROL MODULE)

ECM

YAT204

Page 61

DTC P0715 PRIMARY SPEED SENSOR

Diagnostic Procedure

1 CHECK PRIMARY SPEED SENSOR

Refer to “Component Inspection” AT-65.

OK or NG

OK (With CONSULT-II) ! GO TO 2.

OK (Without CONSULT-II) ! GO TO 3.

NG ! Repair or replace primary speed sensor.

2 CHECK INPUT SIGNAL (With CONSULT-II)

With CONSULT-II

1. Start engine.

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out the value of “I/P PULLY SPD” while driving. Check the value changes according to driving speed. (Almost same value as engine speed)

OK or NG

OK ! GO TO 4.

NG ! Check the following items:

! Harness for short or open between TCM, ECM and primary speed sensor (Main har-

ness)

! Ground circuit for ECM

Refer to EC section (“TROUBLE DIAGNOSIS FOR POWER SUPPLY”).

NCAT0222

3 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-62.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

Component Inspection

REVOLUTION SENSOR

1. Jacking up the vehicle.

2. Check pulse by using the pulse measurement function of CONSULT-II when front wheel rotating.

! CONSULT-II cable connected to data link connector.

At front wheel rotating (L position, 20 km/h): Approx. 900 Hz

CONSULT-II

NCAT0223

NCAT0223S01

To data link connector

DDL PULSE

NAT314

AT-61

Page 62

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)

Description

Remarks: Specification data are reference values.

Terminal

No.

29 G/R

42 B

Wire color Item Condition

Secondary speed sensor

Throttle position sensor (Ground)

Description

The vehicle speed sensor CVT secondary speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the TCM which converts it into vehicle speed.

TCM TERMINALS AND REFERENCE VALUE

Judgement

standard

When driving (D position, 20 km/h), the pulse measurement by using the pulse measurement function of CONSULT-II.

! CONSULT-II cable connected to data link connector. ! This inspection cannot be measured by circuit tester.

— —

Approx. 600 Hz

NCAT0038

NCAT0038S01

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: VEH SPD SEN/CIR AT

! Harness or connectors

(The sensor circuit is open or shorted.)

! Secondary speed sensor

: P0720

: MI Code No. 0720

TCM does not receive the proper voltage signal from the sensor.

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

! Always drive vehicle at a safe speed. ! Be careful not to rev engine into the red zone on the

tachometer.

NOTE: If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition

SAT651J

switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

NCAT0038S02

NCAT0038S03

AT-62

Page 63

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)

Description (Cont’d)

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

2) Start engine and maintain the following conditions for at least 12 consecutive seconds.

THRTL POS SEN: More than 1.3V Selector lever: D position Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving conditions

SAT971J

required for this test.

If the check result is NG, go to “DIAGNOSTIC PROCEDURE”, AT-65.

With GST

Follow the procedure “With CONSULT-II”.

SAT654J

AT-63

Page 64

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)

Wiring Diagram — AT — VSSA/T

SECONDARY SPEED SENSOR

NCAT0201

: Detectable line for DTC

: Non-detectable line for DTC

AT-64

TCM (TRANSMISSION CONTROL MODULE)

ECM

YAT205

Page 65

DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)

Diagnostic Procedure

1 CHECK SECONDARY SPEED SENSOR

Refer to “Component Inspection” AT-65.

OK or NG

OK (With CONSULT-II) ! GO TO 2.

OK (Without CONSULT-II) ! GO TO 3.

NG ! Repair or replace secondary speed sensor.

2 CHECK INPUT SIGNAL (With CONSULT-II)

With CONSULT-II

1. Start engine.

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out the value of “VEHICLE SPEED” while driving. Check the value changes according to driving speed.

OK or NG

OK ! GO TO 4.

NG ! Check the following items:

! Harness for short or open between TCM, ECM and secondary speed sensor (Main

harness)

! Ground circuit for ECM

Refer to EC section (“TROUBLE DIAGNOSIS FOR POWER SUPPLY”).

NCAT0039

3 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-62.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

Component Inspection

SECONDARY SPEED SENSOR

1. Jacking up the vehicle.

2. Check pulse by using the pulse measurement function of CONSULT-II when front wheel rotating.

! CONSULT-II cable connected to data link connector.

At front wheel rotating (D position, 20 km/h): Approx. 600 Hz

CONSULT-II

NCAT0040

NCAT0040S01

To data link connector

DDL PULSE

NAT315

AT-65

Page 66

Description

DTC P0725 ENGINE SPEED SIGNAL

Remarks: Specification data are reference values.

Terminal

No.

39 L/OR

: ENGINE SPEED SIG

: P0725

: MI Code No. 0725

Wire color Item Condition

Engine speed signal

Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)

TCM does not receive the proper voltage signal from ECM.

SAT651J

Description

NCAT0041

The engine speed signal is sent from the ECM to the TCM.

TCM TERMINALS AND REFERENCE VALUE

When engine runs at idle speed. 0.5 - 1.5V

ON BOARD DIAGNOSIS LOGIC

! Harness or connectors

(The sensor circuit is open or shorted.)

NCAT0041S01

Judgement

standard

NCAT0041S02

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed. NOTE:

If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

NCAT0041S03

SAT654J

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

2) Start engine and maintain the following conditions for at least 10 consecutive seconds.

VHCL SPEED SE: 10 km/h (6 MPH) or more THRTL POS SEN: More than 1.3V Selector lever: D position

If the check result is “NG”, go to “Diagnostic Procedure”, AT-68.

With GST

Follow the procedure “With CONSULT-II”.

AT-66

Page 67

DTC P0725 ENGINE SPEED SIGNAL

Wiring Diagram — AT — ENGSS

ECM

: Detectable line for DTC

: Non-detectable line for DTC

NCAT0202

AT-67

TCM (TRANSMISSION CONTROL MODULE)

YAT206

Page 68

Diagnostic Procedure

DTC P0725 ENGINE SPEED SIGNAL

Diagnostic Procedure

NCAT0042

1 CHECK DTC WITH ECM

Perform diagnostic test mode II (self-diagnostic results) for engine control. Check ignition signal circuit condition.

OK or NG

OK (With CONSULT-II) ! GO TO 2.

OK (Without CONSULT-II) ! GO TO 3.

NG ! Check ignition signal circuit for engine control. Refer to EC section (IGNITION SIGNAL).

2 CHECK INPUT SIGNAL (With CONSULT-II)

With CONSULT-II

1. Start engine.

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out the value of “ENGINE SPEED”. Check engine speed changes according to throttle position.

OK or NG

OK ! GO TO 4.

NG ! Check the following items:

! Harness for short or open between TCM and ECM ! Resistor and ignition coil

Refer to EC section (IGNITION SIGNAL).

3 CHECK INPUT SIGNAL (Without CONSULT-II)

Without CONSULT-II

1. Start engine.

2. Check voltage between TCM terminal 39 and ground.

Voltage (Idle speed):

0.5 - 1.5V

OK or NG

OK ! GO TO 4.

NG ! Check the following items:

! Harness for short or open between TCM and ECM ! Resistor and ignition coil

Refer to EC section (IGNITION SIGNAL).

SAT424JA

4 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-66.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-68

Page 69

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Description

Remarks: Specification data are reference values.

Monitor item Condition Specification

Torque converter clutch solenoid valve duty

Remarks: Specification data are reference values.

Terminal

No.

Wire color Item Condition

Description

NCAT0055

The torque converter clutch solenoid valve is activated, by the TCM in response to signals sent from the vehicle speed and throttle position sensors. Lock-up piston operation will then be controlled. Lock-up operation, however, is prohibited when CVT fluid temperature is too low. When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Lock-up “OFF”

Lock-up “ON”

Approximately 4%

Approximately 94%

TCM TERMINALS AND REFERENCE VALUE

NCAT0055S01

NCAT0055S02

Judgement

standard

When CVT performs lock-up. Approx. 12.0V

When CVT does not perform lockup.

3 GY/R

Torque converter clutch solenoid valve

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: TCC SOLENOID/CIRC

: P0740

: MI Code No. 0740

TCM detects an improper voltage drop when it tries to operate the solenoid valve.

! Harness or connectors

(The solenoid circuit is open or shorted.)

! T/C clutch solenoid valve

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

NOTE: If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

Approx. 0V

NCAT0055S03

NCAT0055S04

SAT651J

AT-69

Page 70

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Description (Cont’d)

With CONSULT-II

1) Turn ignition switch “ON”.

2) Select “DATA MONITOR” mode for “ENGINE” with CONSULT-II and wait at least 10 seconds. If the check result is “NG”, go to “Diagnostic Procedure”, AT-72.

With GST

Follow the procedure “With CONSULT-II”.

SAT654J

AT-70

Page 71

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Wiring Diagram — AT — TCV

TCM (TRANSMISSION CONTROL

DUTY SOL

GY/R

MODULE)

M48

: Detectable line for DTC

: Non-detectable line for DTC

M53

F102

NCAT0207

AT-TCV-01

32145678 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

F71

627

GY/R

CONTROL VALVE (TORQUE CONVERTER CLUTCH SOLENOID VALVE)

F71

4143132

M48

15 16 17 1918620

7218229

10 24

F102

YAT149

AT-71

Page 72

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Diagnostic Procedure

1 CHECK GROUND CIRCUIT

1. Turn ignition switch to “OFF” position.

2. Disconnect terminal cord assembly connector in engine compartment.

3. Check resistance between terminal 9 and ground.

Resistance:

10 - 20Ω

OK or NG

OK ! GO TO 2.

NG ! Replace CVT assembly

2 CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to “OFF” position.

2. Disconnect TCM harness connector.

3. Check continuity between terminal 9 and TCM harness connector terminal 3.

Continuity should exist.

NCAT0056

If OK, check harness for short to ground and short to power.

4. Reinstall any part removed.

OK or NG

OK ! GO TO 3.

NG ! Repair open circuit or short to ground or short to power in harness or connectors.

3 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-69.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-72

SAT683J

Page 73

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Component Inspection

To torque converter clutch solenoid valve

SAT684J

Component Inspection

TORQUE CONVERTER CLUTCH SOLENOID VALVE

NCAT0057

NCAT0057S01

! For removal, refer to AT-116.

Resistance Check

NCAT0057S0101

! Check resistance between two terminals.

Solenoid valve Terminal No.

Torque converter clutch solenoid valve

Operation Check

Ground of TCC

solenoid valve

Resistance

(Approx.)

10 - 16Ω

NCAT0057S0102

! Check solenoid valve by listening for its operating sound while

applying battery voltage to the terminal and ground of TCC solenoid valve.

SAT685J

AT-73

Page 74

Description

DTC P0745 LINE PRESSURE SOLENOID VALVE

Description

NCAT0061

The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the TCM.

The line pressure duty cycle value is not consistent when the closed throttle position switch is “ON”. To confirm the line pressure duty cycle at low pressure, the accelerator (throttle) should be open until the closed throttle position switch is “OFF”.

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Remarks: Specification data are reference values.

Monitor item Condition Specification

Small throttle opening

(Low line pressure)

Line pressure solenoid valve duty

Large throttle opening

(High line pressure)

NOTE:

Approximately 4%

Approximately 94%

NCAT0061S01

Remarks: Specification data are reference values.

Terminal

No.

1 OR/L

2 P/B

: L/PRESS SOL/CIRC

: P0745

: MI Code No. 0745

Wire color Item Condition

Line pressure solenoid valve

Line pressure solenoid valve (with dropping resistor)

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

TCM detects an improper voltage drop when it tries to operate the solenoid valve.

TCM TERMINALS AND REFERENCE VALUE

When releasing accelerator pedal after warming up engine.

When depressing accelerator pedal fully after warming up engine.

When releasing accelerator pedal after warming up engine.

When depressing accelerator pedal fully after warming up engine.

ON BOARD DIAGNOSIS LOGIC

! Harness or connectors

(The solenoid circuit is open or shorted.)

! Line pressure solenoid valve

NCAT0061S02

Judgement

standard

Approx. 2.8V

Approx. 1.4V

Approx. 11.0V

Approx. 4.0V

NCAT0061S03

AT-74

Page 75

DTC P0745 LINE PRESSURE SOLENOID VALVE

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

NOTE: If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-

DURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

SAT651J

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

2) Depress accelerator pedal completely and wait at least 5 seconds. If the check result is “NG”, go to “Diagnostic Procedure”, AT-77.

With GST

Follow the procedure “With CONSULT-II”.

SAT654J

Description (Cont’d)

NCAT0061S04

AT-75

Page 76

DTC P0745 LINE PRESSURE SOLENOID VALVE

Wiring Diagram — AT — LPSV

PL DUTY SOL (DR)

P/B

OR/L

DROPPING RESISTOR

F86

Wiring Diagram — AT — LPSV

TCM (TRANSMISSION CONTROL MODULE)

M48

: Detectable line for DTC

: Non-detectable line for DTC

M53

F102

PL DUTY

SOL

OR/LP/B

2220

OR/LP/B

NCAT0209

AT-LPSV-01

F86

32145678 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

OR/L

CONTROL VALVE (LINE PRESSURE SOLENOID VALVE)

F71

M48

F71

627

4143132

15 16 17 1918620

7218229

10 24

F102

YAT150

AT-76

Page 77

DTC P0745 LINE PRESSURE SOLENOID VALVE

Diagnostic Procedure

1 CHECK GROUND CIRCUIT

1. Turn ignition switch to “OFF” position.

2. Disconnect terminal cord assembly connector in engine compartment.

3. Check resistance between terminal 8 and ground.

Resistance:

2.5 - 5Ω

OK or NG

OK ! GO TO 2.

NG ! Check the following items:

! Line pressure solenoid valve

Refer to “Component Inspection”, AT-78.

! Harness of terminal cord assembly for short or open

2 CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to “OFF” position.

2. Disconnect TCM harness connector.

3. Check resistance between terminal 8 and TCM harness connector terminal 2.

Resistance:

11.2 - 12.8Ω

OK or NG

OK ! GO TO 3.

NG ! Check the following items:

! Dropping resistor

Refer to “Component Inspection”, AT-78.

! Harness for short or open between TCM terminal 2 and terminal cord assembly (Main

harness)

NCAT0062

3 CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to “OFF” position.

2. Check continuity between terminal 8 and TCM harness connector terminal 1.

Continuity should exist.

If OK, check harness for short to ground and short to power.

3. Reinstall any part removed.

OK or NG

OK ! GO TO 4.

NG ! Repair open circuit or short to ground or short to power in harness or connectors.

4 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-75.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-77

Page 78

Component Inspection

DTC P0745 LINE PRESSURE SOLENOID VALVE

To line pressure solenoid valve

SAT686J

Component Inspection

LINE PRESSURE SOLENOID VALVE

=NCAT0063

NCAT0063S01

! For removal, refer to AT-116.

Resistance Check

NCAT0063S0101

! Check resistance between two terminals.

Solenoid valve Terminal No.

Line pressure solenoid valve

Operation Check

Ground of line

pressure solenoid

valve

Resistance

(Approx.)

2.5 - 5Ω

NCAT0063S0102

! Check solenoid valve by listening for its operating sound while

applying battery voltage to the terminal and ground of line pressure solenoid valve.

To line pressure solenoid valve

SAT687J

DROPPING RESISTOR

! Check resistance between two terminals.

Resistance:

11.2 - 12.8Ω

NCAT0063S02

SAT444J

AT-78

Page 79

DTC P1705 THROTTLE POSITION SENSOR

Description

Throttle position sensor and throttle position switch

SAT413J

Remarks: Specification data are reference values.

Monitor item Condition Specification

Throttle position sensor

Remarks: Specification data are reference values.

Terminal

No.

Wire color Item Condition

Description

! Throttle position sensor

The throttle position sensor detects the throttle valve position and sends a signal to the TCM.

! Throttle position switch

Consists of a wide open throttle position switch and a closed throttle position switch. The wide open throttle position switch sends a signal to the TCM when the throttle valve is open at least 1/2 of the full throttle position. The closed throttle position switch sends a signal to the TCM when the throttle valve is fully closed.

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Fully-closed throttle Approximately 0.5V

Fully-open throttle Approximately 4V

TCM TERMINALS AND REFERENCE VALUE

NCAT0070S01

NCAT0070S02

Judgement

standard

NCAT0070

16 Y

17 LG

32 G

41 GY

42 B

Closed throttle position switch (in throttle position switch)

Wide open throttle position switch (in throttle position switch)

Throttle position sensor (Power source)

Throttle position sensor

Ground (Throttle position sensor)

When releasing accelerator pedal after warming up engine.

When depressing accelerator pedal after warming up engine.

When depressing accelerator pedal more than half-way after warming up engine.

When releasing accelerator pedal after warming up engine.

When turning ignition switch to “ON”.

When turning ignition switch to “OFF”.

When depressing accelerator pedal slowly after warming up engine. (Voltage rises gradually in response to throttle position.)

— —

Battery voltage

Approx. 0V

Battery voltage

Approx. 0V

4.5 - 5.5V

Approx. 0V

Fully-closed throttle: Approximately

0.3V Fully-open throttle: Approximately 3V

AT-79

Page 80

Description (Cont’d)

DTC P1705 THROTTLE POSITION SENSOR

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: TP SEN/CIRC A/T

: P1705

: MI Code No. 1705

TCM receives an excessively low or high voltage from the sensor.

! Harness or connectors

(The sensor circuit is open or shorted.)

! Throttle position sensor ! Throttle position switch

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed. NOTE:

If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

SAT651J

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

NCAT0070S03

NCAT0070S04

SAT971J

SAT654J

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “CVT” with CONSULT-II.

2) Check the following.

Acceleratr pedal

condition

Fully released Less than 0.5V ON OFF

Partially

depressed

Fully depressed 1.9 - 4.0V OFF ON

THRTL POS SEN CLOSED THL/SW W/O THRL/P⋅SW

0.5 - 1.9V OFF OFF

If the check result is NG, go to “DIAGNOSTIC PROCEDURE”, AT-82. If the check result is OK, go to following step.

3) Turn ignition switch “ON” and select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

4) Start engine and maintain the following conditions for at least 5 consecutive seconds. Then release accelerator pedal completely.

VHCL SPEED SE: 10 km/h (6 MPH) or more THRTL POSI SEN: Approximately 3V or less Selector lever: D position

If the check result is NG, go to “DIAGNOSTIC PROCEDURE”, AT-82.

With GST

Follow the procedure “With CONSULT-II”.

AT-80

Page 81

DTC P1705 THROTTLE POSITION SENSOR

Wiring Diagram — AT — TPS

NCAT0212

AT-81

YAT252

Page 82

Diagnostic Procedure

DTC P1705 THROTTLE POSITION SENSOR

Diagnostic Procedure

NCAT0071

1 CHECK DTC WITH ECM

Perform diagnostic test mode II (self-diagnostic results) for engine control. Refer to EC section [“Malfunction Indicator (MI)”, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”].

OK or NG

OK (With CONSULT-II) ! GO TO 2.

OK (Without CONSULT-II) ! GO TO 3.

NG ! Check throttle position sensor circuit for engine control. Refer to EC section (“DTC

P0120 THROTTLE POSITION SENSOR”).

2 CHECK INPUT SIGNAL (With CONSULT-II)

With CONSULT-II

1. Turn ignition switch to “ON” position. (Do not start engine.)

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out the value of “THRTL POS SEN”.

Voltage:

Fully-closed throttle:

Approximately 0.5V

Fully-open throttle:

Approximately 4V

OK or NG

OK ! GO TO 4.

NG ! Check harness for short or open between ECM and TCM regarding throttle position sen-

sor circuit. (Main harness)

3 CHECK INPUT SIGNAL (Without CONSULT-II)

Without CONSULT-II

1. Turn ignition switch to “ON” position. (Do not start engine.)

2. Check voltage between TCM terminals 41 and 42 while accelerator pedal is depressed slowly.

Voltage:

Fully-closed throttle valve:

Approximately 0.5V

Fully-open throttle valve:

(Voltage rises gradually in response to throttle position)

OK ! GO TO 5.

NG ! Check harness for short or open between ECM and TCM regarding throttle position sen-

Approximately 4V

SAT453J

OK or NG

sor circuit. (Main harness)

AT-82

Page 83

DTC P1705 THROTTLE POSITION SENSOR

4 CHECK THROTTLE POSITION SWITCH CIRCUIT (With CONSULT-II)

With CONSULT-II

1. Turn ignition switch to “ON” position. (Do not start engine.)

2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out “CLOSED THL/SW” and “W/O THRL/P-SW” depressing and releasing accelerator pedal. Check the signal of throttle position switch is indicated properly.

Diagnostic Procedure (Cont’d)

Accelerator pedal

condition

Released ON OFF

Fully depressed OFF ON

OK ! GO TO 6.

NG ! Check the following items:

! Throttle position switch — Refer to “Components Inspection”, AT-85. ! Harness for short or open between ignition switch and throttle position switch (Main

harness)

! Harness for short or open between throttle position switch and TCM (Main harness)

CLOSED THL/SW W/O THRL/P-SW

OK or NG

Data monitor

MTLB0011

AT-83

Page 84

DTC P1705 THROTTLE POSITION SENSOR

Diagnostic Procedure (Cont’d)

5 CHECK THROTTLE POSITION SWITCH CIRCUIT (Without CONSULT-II)

Without CONSULT-II

1. Turn ignition switch to “ON” position. (Do not start engine.)

2. Check voltage between TCM terminals 16, 17 and ground while depressing, and releasing accelerator pedal slowly. (After warming up engine)

Accelerator pedal

condition

Released Battery voltage 1V or less

Fully depressed 1V or less Battery voltage

Terminal No. 16 Terminal No. 17

Voltage

MTBL0137

OK or NG

OK ! GO TO 6.

NG ! Check the following items:

! Throttle position switch — Refer to “Components Inspection”, AT-85. ! Harness for short or open between ignition switch and throttle position switch (Main

harness)

! Harness for short or open between throttle position switch and TCM (Main harness)

6 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-80.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-84

SAT454J

Page 85

DTC P1705 THROTTLE POSITION SENSOR

Component Inspection

Throttle position switch harness connector

SAT688J

Component Inspection

THROTTLE POSITION SWITCH Closed Throttle Position Switch (Idle position)

=NCAT0072

NCAT0072S01

NCAT0072S0101

! Check continuity between terminals 5 and 6.

Accelerator pedal condition Continuity

Released Yes

Depressed No

! To adjust closed throttle position switch, refer to EC section

(“Basic Inspection”, “TROUBLE DIAGNOSIS — Basic Inspection”).

Wide Open Throttle Position Switch

NCAT0072S0102

! Check continuity between terminals 5 and 4.

Throttle position switch harness connector

Accelerator pedal condition Continuity

Released No

Depressed Yes

SAT689J

AT-85

Page 86

Description

DTC P1777 STEP MOTOR — CIRCUIT

Remarks: Specification data are reference values.

Monitor item Condition Specification

Step motor

Remarks: Specification data are reference values.

Terminal

No.

Wire color Item Condition

Description

! The step motor is ON/OFF of 4 aspects changes according to

the signal from TCM. As a result, the flow of line pressure to primary pulley is changed and pulley ratio is controlled.

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

The vehicle runs a safe condition and

press/depress accelerator pedal.

TCM TERMINALS AND REFERENCE VALUE

ON/OFF

Judgement

standard

NCAT0224

NCAT0224S01

NCAT0224S02

11 PU

12 L/W 10.0 msec

Step motor

20 L/Y 30.0 msec

21 P/L 10.0 msec

Within 2 seconds after key switch “ON”, the time measurement by using the pulse width measurement function (Hi level) of CONSULT-II.

! CONSULT-II cable connect to data link connector. ! This inspection cannot be measured by circuit tester.

30.0 msec

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: STEP MOTOR/CIRC

: P1777

: MI Code No. 1777

When in operating step motor ON and OFF, there is no proper change in the voltage of the terminal TCM which corresponds to it.

! Harness or connectors

(The step motor circuit is open or shorted.)

! Step motor

NCAT0224S03

AT-86

Page 87

DTC P1777 STEP MOTOR — CIRCUIT

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

! Always drive vehicle at a safe speed. ! Be careful not to rev engine into the red zone on the

tachometer.

NOTE: If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition

SAT651J

SAT654J

switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

2) Drive vehicle for at least 5 consecutive seconds. If the check result is “NG”, go to “Diagnostic Procedure”, AT-89.

With GST

Follow the procedure “With CONSULT-II”.

Description (Cont’d)

NCAT0224S04

AT-87

Page 88

Wiring Diagram — AT — STM

DTC P1777 STEP MOTOR — CIRCUIT

Wiring Diagram — AT — STM

TCM (TRANSMISSION CONTROL MODULE)

NCAT0225

: Detectable line for DTC

: Non-detectable line for DTC

AT-88

CONTROL VALVE (STEP MOTOR)

YAT208

Page 89

DTC P1777 STEP MOTOR — CIRCUIT

Diagnostic Procedure

1 CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to “ON” position.

2. Check “SELF-DIAGNOSIS” with CONSULT-II.

3. If “CVT SAFE FUNCTION” activate, refer to “CVT SAFE FUNCTION” AT-99.

4. Turn ignition switch to “OFF” position.

5. Disconnect TCM harness connector.

6. Check continuity between terminal 2, 3, 4, 5 and TCM harness connector terminal 11, 12, 20, 21.

Continuity should exist.

Step motor connector

If OK, check harness for short to ground and short to power.

7. Reinstall any part removed.

OK or NG

OK ! GO TO 2.

NG ! Repair open circuit or short to ground or short to power in harness or connectors.

NCAT0226

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2 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-91.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-89

Page 90

Component Inspection

DTC P1777 STEP MOTOR — CIRCUIT

CVT fluid pressure sensor connector

SAT690J

Component Inspection

STEP MOTOR Resistance Check

! Check resistance between terminals.

Control valve Terminal No. Resistance (Approx.)

2 and 3

4 and 5

2 and ground

Step motor

3 and ground

4 and ground

5 and ground

=NCAT0227

NCAT0227S01

NCAT0227S0101

28Ω

14Ω

AT-90

Page 91

DTC P1778 STEP MOTOR — FUNCTION

Description

! The step motor is ON/OFF of 4 aspects changes according to

the signal from TCM. As a result, the flow of line pressure to primary pulley is changed and pulley ratio is controlled.

! This diagnosis item detects when electrical system is OK but,

mechanical system is NG.

! This diagnosis item detects when the state that the changing

the speed mechanism in unit does not operate normally.

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

It is monitoring whether “CVT RATIO: 2.32 - 0.47” changes similarly to “PLY CONT STEP: 3 - 200” by DATA MONITOR mode.

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: STEP MOTOR/FNCTN

: P1778

When not changing the speed according to the instruction of TCM.

! Step motor

NCAT0228

NCAT0228S01

NCAT0228S03

: MI Code No. 1778

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SAT971J

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

! Always drive vehicle at a safe speed. ! Be careful not to rev engine into the red zone on the

tachometer.

! Before start “DIAGNOSTIC TROUBLE CODE (DTC) CON-

FIRMATION PROCEDURE”, confirm “Hi” or “Mid” or “Low” fixation by “I/P PULLY SPD” and “VHCL SPEED SE” on “DATA MONITOR MODE”.

! If hi-geared fixation, go to diagnostic procedure soon. NOTE: If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “CVT” with CONSULT-II.

NCAT0228S04

AT-91

Page 92

Description (Cont’d)

DTC P1778 STEP MOTOR — FUNCTION

2) Make sure that output voltage of CVT fluid temperature snesor is within the range below.

FLUID TEMP SEN: 0.5 - 1.5V If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool down the fluid)

3) Select “ENGINE” mode for “ENGINE” with CONSULT-II.

4) Start engine and maintain the following conditions for at least 30 consecutive seconds.

TEST START FROM 0 km/h (0 MPH)

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CONSTANT ACCELERATION: Keep 30 sec or more VHCL SPEED SE: 10 km/h (6 MPH) or more THRTL POS SEN: More than 1.3V Selector lever: D position ENG SPEED: 450 rpm or more

If the check result is NG, go to “DIAGNOSTIC PROCEDURE”, AT-93.

With GST

Follow the procedure “With CONSULT-II”.

AT-92

Page 93

DTC P1778 STEP MOTOR — FUNCTION

Diagnostic Procedure

1 CHECK STEP MOTOR

! It is monitoring whether “CVT ratio: 2.32 - 0.47” changes similarly to “PLY CONT STEP: -3 - 200” by DATA MONITOR mode. ! If no CONSULT-II, inspect the engine speed (rise and descend) about vehicle speed and throttle opening angle, and check shift

change.

OK or NG

OK ! INSPECTION END

NG ! Replace CVT assembly.

NCAT0230

AT-93

Page 94

Description

DTC P1791 CVT FLUID PRESSURE SENSOR

Remarks: Specification data are reference values.

Monitor item Condition Specification

Throttle valve fully closed (PL Duty: 4%)

CVT fluid pressure sensor

Remarks: Specification data are reference values.

Terminal

No.

Wire color Item Condition

Description

NCAT0232

! The CVT fluid pressure sensor detects line pressure of CVT,

and sends TCM the signal.

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Throttle valve fully depressed

(PL Duty: 94%)

Approx. 1.0 V

Approx. 4.0 V

TCM TERMINALS AND REFERENCE VALUE

NCAT0232S01

NCAT0232S02

Judgement

standard

When engine runs at idle speed. Approx. 1.0 V

37 W/G

CVT fluid pressure sensor

42 B

46 P/L — 4.5 - 5.5 V

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: LINE PRESS SEN

: P1791

: MI Code No. 1791

TCM receives an excessively low or high voltage from the step motor.

When engine runs at stall speed. Approx. 4.0V

— —

NCAT0232S03

! Harness or connectors

(The sensor circuit is open or shorted.)

! CVT fluid pressure sensor

AT-94

Page 95

DTC P1791 CVT FLUID PRESSURE SENSOR

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION:

! Always drive vehicle at a safe speed. ! Be careful not to rev engine into the red zone on the

tachometer.

NOTE: If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition

SAT651J

SAT971J

SAT654J

switch “OFF” and wait at least 5 seconds before conducting the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for “CVT” with CONSULT-II.

2) Make sure that output voltage of CVT fluid temperature snesor is within the range below.

FLUID TEMP SEN: 0.5 - 1.5V If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool down the fluid)

3) Select “DATA MONITOR” mode for “ENGINE” with CONSULTII.

4) Start engine and maintain the following conditions for at least 5 consecutive seconds.

VHCL SPEED SE: 10 km/h (6 MPH) or more THRTL POS SEN: 1.3V Selector lever: D position ENG SPEED: 450 rpm or more

If the check result is NG, go to “Diagnostic Procedure”, AT-97.

With GST

Follow the procedure “With CONSULT-II”.

Description (Cont’d)

NCAT0232S04

AT-95

Page 96

DTC P1791 CVT FLUID PRESSURE SENSOR

Wiring Diagram — AT — FPS

CONTROL VALVE (CVT FLUID PRESSURE SENSOR)

NCAT0233

: Detectable line for DTC

: Non-detectable line for DTC

TCM (TRANSMISSION CONTROL MODULE)

AT-96

ECM

YAT209

Page 97

DTC P1791 CVT FLUID PRESSURE SENSOR

Diagnostic Procedure

1 CHECK PRESSURE SENSOR

Refer to “Component Inspection”, AT-98.

OK or NG

OK (With CONSULT-II) ! GO TO 2.

OK (Without CONSULT-II) ! GO TO 3.

NG ! Repair or replace pressure sensor.

2 CHECK INPUT SIGNAL (With CONSULT-II)

With CONSULT-II

1. Start engine.

2. Select “ECU Input Item Parameter List” in “DATA MONITOR” mode for “CVT” with CONSULT-II.

3. Read out the value of “LINE PRES SEN” while driving.

! Throttle valve fully closed (PL Duty: 4%): Approx. 1.0V ! Throttle valve fully depressed (PL Duty: 94%): Approx. 4.0V

OK or NG

OK ! GO TO 4.

NG ! Check the following items:

! Harness for short or open between TCM, ECM and CVT fluid pressure sensor (Main

harness)

! Ground circuit for ECM

Refer to EC section (“TROUBLE DIAGNOSIS FOR POWER SUPPLY”).

NCAT0234

3 CHECK INPUT SIGNAL (Without CONSULT-II)

Without CONSULT-II

Refer to “Component Inspection”, AT-98.

OK or NG

OK ! GO TO 4.

NG ! Check the following items:

! Harness for short or open between TCM, ECM and CVT fluid pressure sensor (Main

harness).

! Ground circuit for ECM

Refer to EC section (“TROUBLE DIAGNOSIS FOR POWER SUPPLY”).

4 CHECK DTC

Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-95.

OK or NG

OK ! INSPECTION END

NG ! 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-97

Page 98

Component Inspection

DTC P1791 CVT FLUID PRESSURE SENSOR

CVT fluid pressure sensor connector

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Component Inspection

CVT FLUID PRESSURE SENSOR

! Start engine. ! Check voltage between terminals 1 and 6, 6 and 10.

Terminal No. Voltage

16Approx. 0.5 - 4.5V

6 10 Approx. 4.5 - 5.5V

=NCAT0235

NCAT0235S01

AT-98

Page 99

CVT SAFE FUNCTION

Description

“CVT SAFE FUNCTION” is function to protect CVT.

ON BOARD DIAGNOSIS LOGIC

Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: CVT SAFE FUNCTION

TCM is malfunctioning TCM

: 10th judgement flicker

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

With CONSULT-II

1) Turn ignition switch “ON” and select “DATA MONITOR” mode for CVT with CONSULT-II.

2) Start engine.

3) Run engine for at least 2 seconds at idle speed.

Description

SAT651J

SAT971J

Light

Shade

SAT455FA

Without CONSULT-II

1) Start engine.

2) Perform self-diagnosis. Refer to SELF-DIAGNOSTIC PROCEDURE (Without CONSULT-II), AT-25.

AT-99

Page 100

CVT SAFE FUNCTION

Diagnostic Procedure

1 CHECK INPUT SIGNAL (With CONSULT-II)

1. Turn ignition switch to “ON” and select “SELF DIAG RESULTS” mode for CVT with CONSULT-II.

2. Touch “ERASE”. Perform “DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE”. See previous page.

Is the “CVT SAFE FUNCTION” displayed again?

YES ! Replace TCM

NO ! INSPECTION END

AT-100

Nissan Primera P11 2001 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual