Toyota Camry 2007-2009 Service Manual - 2GR-FE_Starting

2GR-FE STARTING – STARTING SYSTEM

ENGINE2GR-FE STARTING

STARTING SYSTEM

PARTS LOCATION

ECM

STARTER

ST–1

TRANSMISSION CONTROL ECU

MAIN BODY ECU

PARK/NEUTRAL POSITION SWITCH

ENGINE ROOM R/B

-STARTER RELAY

-IGNITION RELAY

-STARTER CUT RELAY

-IG2 FUSE

-AM2 FUSE

-ST/AM2 FUSE

-ALT FUSE

with SMART KEY SYSTEM:

INSTRUMENT PANEL J/B

-IGN FUSE

-AM1 FUSE

-ENGINE SWITCH

without SMART KEY SYSTEM:

-IGNITION SWITCH

A135519E01

ST–2

without Smart Key System:

2GR-FE STARTING – STARTING SYSTEM

SYSTEM DIAGRAM

Transmission Control ECU

NSW C56

STA C56

E23 Ignition Switch

ACC

C1 Park/Neutral Position Switch

ECM

C55

NSW

BL P N

A55

STA

AM1

FL MAIN

Battery

AM1

AM2

ST/AM2ALT

IG1

ST1

IG2

ST2

A135061E01

Starter

with Smart Key System:

2GR-FE STARTING – STARTING SYSTEM

ST–3

Main Body ECU

AM1

AM2

STR2

STR

IG2D

From Battery

AM2

IGN

IG2

From Battery

ST CUT

IG2

ECM

NSW

C55

STAR

From Battery

C1 Park/Neutral Position Switch

ST/AM2

BL P N

A55

STA

A135062E01

ST–4

SSW1

SSW2

2GR-FE STARTING – STARTING SYSTEM

SS2 SS1

SS2 SS1GND

Free

Full Traveling

E52 Engine Switch

Battery

Starter

GND

A135063E01

2GR-FE STARTING – SMART KEY SYSTEM

SMART KEY SYSTEM

PRECAUTION

1. EMERGENCY ENGINE START CONTROL

(a) If there is a malfunction in the stop light switch or

STOP fuse, their signals may not be correctly transmitted to the main body ECU. This may result in the engine not starting even if the engine switch is pressed while the brake pedal is depressed and the shift lever is in the P position. To activate the starter: (1) Turn the engine switch from off to on (ACC). (2) Press and hold the engine switch for 15

seconds.

2. PRECAUTIONS FOR PUSH-BUTTON START FUNCTION:

(a) Before starting the engine, firmly depress the brake

pedal until the indicator in the engine switch turns green.

(b) The power source mode (off, on (ACC), on (IG)) is

always retained in memory by the vehicle. If the battery is disconnected, the power source mode that was present before disconnection will be restored after the battery is reconnected. Be sure to turn the engine switch off before disconnecting the cable from the negative battery terminal. Be careful if the power source mode of a vehicle with a discharged battery is not known.

seconds or more before attempting to start the engine. The engine may not start immediately after the battery is reconnected.

(d) If the electrical key is held near the engine switch to

start the engine when the electrical key battery is depleted, the following warnings will sound: (1) Driver's door open → closed

• An exit warning will sound if the shift lever is in a position other than P and the power source is in a mode other than off.

• An exit warning will sound if the shift lever is in the P position and the power source is in a mode other than off.

(2) Doors other than the driver door open → closed

• A warning will sound to indicate that the electrical key has been taken out of the vehicle.

These warnings will sound because it is not possible for the vehicle to determine if the key is present in the vehicle (due to the depleted key battery). These warnings do not indicate system malfunctions.

ST–5

ST–6

PARTS LOCATION

ECM (2GR-FE)

2GR-FE STARTING – SMART KEY SYSTEM

PARK / NEUTRAL POSITION SWITCH

WIRELESS BUZZER

ELECTRICAL KEY OSCILLATOR (CONSOLE)

ENGINE ROOM J/B AND R/B

- AM2 FUSE

- IG2 FUSE

- IG2 RELAY

- ST RELAY

- ST / AM2 FUSE

- ECU-B NO. 1 FUSE

- ST CUT RELAY

ELECTRICAL KEY OSCILLATOR (REAR SEAT)

DOOR CONTROL RECEIVER

B137944E01

COMBINATION METER

TURN SIGNAL FLASHER ASSEMBLY

2GR-FE STARTING – SMART KEY SYSTEM

ID CODE BOX

ST–7

CERTIFICATION ECU

STOP LIGHT SWITCH

MAIN BODY ECU (INSTRUMENT PANEL J/B)

- IG1 RELAY

- ACC RELAY

- ECU-ACC FUSE

- ECU IG NO. 1 FUSE

- DOOR NO. 2 FUSE

DLC3

SHIFT LOCK CONTROL ECU

ENGINE SWITCH

STEERING LOCK ECU

B137945E01

ST–8

2GR-FE STARTING – SMART KEY SYSTEM

SYSTEM DIAGRAM

AM2

From Battery

CAN Line CAN

Shift Lock Control ECU

IG1

MAIN BODY ECU

AM1 AM2

IG1D

SSW1

SSW2

STP

SPD

SLP

LIN1

Engine Switch

Stop Light Switch

Combination Meter

Steering Lock ECU

IG2

IG2D

ACC

ACCD

ST CUT

STR2

ID Code Box

Certification ECU

Key

LIN

CAN

B137946E01

2GR-FE STARTING – SMART KEY SYSTEM

STR

Park / Neutral Position Switch

GND1 GND2

Transmission Control ECU

ST–9

STSW

TACH

ACCR

MAIN BODY ECU

STA

NSW

ECM

NSW

STAR

ACCR

STA

TACH

STSW

Starter

Crankshaft Position Sensor

NE+

NE-

Battery

Communication table:

Transmitting ECU

(Transmitter)

Combination meter Main body ECU Vehicle speed signal CAN/Local communication Steering lock ECU Main body ECU Steering lock/unlock signal LIN/Local communication

Receiving ECU

(Receiver)

Signal Communication method

B137970E01

ST–10

2GR-FE STARTING – SMART KEY SYSTEM

Transmitting ECU

(Transmitter)

ECM Main body ECU

Main body ECU Certification ECU

Main body ECU Combination meter Entry start key signal CAN Main body ECU Combination meter Certification ECU Main body ECU Illumination light request signal CAN

Certification ECU Driver seat ECU Memory call replay request signal CAN Certification ECU Main body ECU Light answer back signal CAN

Certification ECU Combination meter

Combination meter Certification ECU/Main body ECU Vehicle speed signal CAN Shift lock control ECU Main body ECU Shift position signal CAN/Local communication Certification ECU Main body ECU Key ID matching request signal LIN Main body ECU Certification ECU ID required signal LIN

Receiving ECU

(Receiver)

Signal Communication method

Starter signal

Engine revolution speed signal Engine switch position signal Courtesy light switch signal Wireless door lock buzzer

request signal

Wireless door lock buzzer request signal

Meter buzzer single-shot request signal

Meter buzzer intermittence request signal

Meter buzzer continuation request signal

Door open display signal Key loss warning signal Low key battery warning signal Shift position warning signal Steering lock abnormal warning Steering lock unlock warning

CANShift position signal

CAN

2GR-FE STARTING – SMART KEY SYSTEM

SYSTEM DESCRIPTION

1. PUSH-BUTTON START FUNCTION DESCRIPTION

(a) The push-button start function uses a push-type

engine switch, which the driver can operate by merely carrying the electrical key. This system consists primarily of the main body ECU, engine switch, ID code box, steering lock ECU, electrical key , ACC relay, IG1 relay, IG2 relay and certification ECU. The main body ECU controls the function. This function operates in cooperation with the smart key system.

2. FUNCTION OF COMPONENT

Component Function

• Transmits engine switch signal to main body ECU.

Engine Switch

• Transponder Key Amplifier

Electrical Key Electrical Key Oscillator

• Console and Rear Seat Steering Lock ECU

Entry Door Control Receiver

Main body ECU

Certification ECU Stop Light Switch Outputs state of brake pedal to main body ECU.

ID Code Box

ECM

• Informs driver of power source mode or system abnormality with illumination of indicator light.

• Receives ID code and transmits it to certification ECU when key battery is low.

Receives signals from oscillators and returns ID code to entry door control receiver.

Receives request signals from certification ECU and forms detection area in vehicle interior.

Receives lock/unlock request signals from certification ECU and main body ECU.

Receives ID code from electrical key and transmits it to certification ECU.

• Changes power source mode in 4 stages (off, on (ACC), on (IG), start) in accordance with shift position and state of stop light switch.

• Controls push-button start function in accordance with signals received from switches and each ECU.

Certifies ID code received from entry door control receiver and transmits certification results to ID code ECU and steering lock ECU.

Receives steering unlock or engine immobiliser unset signals from certification ECU, certifies them, and transmits each unset signal to steering lock ECU or ECM.

• Receives engine start request signal from main body ECU, turns ON ST relay, and starts engine.

• Receives signal from ID code ECU and performs engine ignition and injection.

ST–11

Engine switch control

Diagnosis

3. SYSTEM FUNCTION

The electric controls of the push-button start fu nction are described below:

Control Outline

• When driver operates engine switch with electrical key in driver's possession, certification ECU starts indoor electrical key oscillator, which transmits request signal to electrical key. Upon receiving this signal, the electrical key transmits ID code signal to main body ECU.

• ID code box verifies check results received from certification ECU via LIN and sends them to main body ECU. Based on these results, main body ECU authorizes operation of engine switch.

When main body ECU detects malfunction, main body ECU diagnoses and memorizes failed section.

ST–12

Indicator Light

START

STOP

2GR-FE STARTING – SMART KEY SYSTEM

A109251E01

Engine switch indicator light condition:

Power Source Mode/Condition

off OFF ON (Green) (When key and vehicle IDs match)

on (ACC, IG) ON (Amber) ON (Green)

Engine running OFF OFF

Steering lock not unlocked Flashes (Green) for 15 sec. Flashes (Green) for 15 sec.

System malfunction Flashes (Amber) for 15 sec. Flashes (Amber) for 15 sec.

Brake pedal released Brake pedal depressed, shift lever in P or N

4. CONSTRUCTION AND OPERATION

(a) Engine Switch

The engine switch consists of a momentary type switch, 3 color (amber, green, greenish white) LEDs, and a transponder key amplifier.

• The greenish white LED is for illumination.

• The amber and green LEDs are for the indicator lights. The driver can check the present power source mode and whether the engine can start in accordance with the illumination state of the indicator light.

• When the main body ECU detects an abnormality in the push-button start function, it makes the amber indicator light flash. If the engine stopped in this state, it may not be possible to restart it.

(b) Indicator Light Condition

Indicator Light Condition

The main body ECU consists of the IG1 and IG2 relay actuation circuits and CPU. HINT: Before removing the battery, make sure to turn the engine switch off. The main body ECU constantly stores the present power source mode in its memory. Therefore, if the main body ECU is interrupted by disconnecting the battery, the main body ECU restores the power source mode after the battery is reconnected. For this reason, if the battery is disconnected when the engine switch is not off, the power will be restored to the vehicle at the same time the power is restored to the main body ECU (by reconnecting the battery).

5. PUSH-BUTTON START FUNCTION OPERATION

(a) This system has different power source mode

patterns depending on the brake pedal condition and shift lever position.

Brake Pedal Shift Lever Power Source Mode Pattern

When the engine switch is pushed once.

Depressed P or N position

P position

Not depressed

Except P position

•off → engine start

• on (ACC) → engine start

• on (IG) → engine start Each time the engine switch is pushed.

•off → on (ACC) → on (IG) → off Each time the engine switch is pushed.

•off → on (ACC) → on (IG) → on (ACC)

2GR-FE STARTING – SMART KEY SYSTEM

Brake Pedal Shift Lever Power Source Mode Pattern

When the engine switch is pushed with power

- P position

- Except P position

source mode on (IG) (engine running).

• on (IG) → off When the engine switch is pushed with power

source mode on (IG) (engine running).

• on (IG) → on (ACC)

When the battery of the key is low, the push-button start function can be operated by holding the key against the engine switch.

• After approximately 1 hour has passed with the engine switch on (ACC) and the shift position in P, the main body ECU will automatically cut the power supply (the power source mode changes to off).

ST–13

ST–14

2GR-FE STARTING – SMART KEY SYSTEM

• The illustration below shows the transition of power source modes. Transition of power source mode:

Shift Position

Engine Switch Position

off

on (ACC)

Engine switch pushed

Brake pedal depressed

Not operated for 1 hour

Engine switch pushed

N Except P and N

Engine switch pushed

Brake pedal depressed

Engine switch pushed

Brake pedal depressed

on (IG)

Engine start

Transition of power source mode (Always)

Transition of power source mode (only when key code is certified)

Transition of power source mode (only with vehicle stopped)

B138065E01

Engine Switch

2GR-FE STARTING – SMART KEY SYSTEM

Required Distance: 10 mm (0.39 in.)

Key

B137947E01

ST–15

HINT: While the vehicle is being driven normally, operation of the engine switch is disabled. However, if the engine must be stopped in an emergency while the vehicle is being driven, pressing the engine switch for 3 seconds or more stops the engine. Power source mode changes from start to on (ACC).

6. WHEN KEY BATTERY IS LOW

(a) To operate the push-button start function when the

key battery is low, hold the key close to the engine switch with the brake pedal depressed.

(b) The main body ECU transmits a key verification

request signal from the stop light switch to the certification ECU.

response from the entry door control receiver, so it actuates the transponder key amplifier built into the engine switch.

(d) The transponder key amplifier outputs an engine

immobiliser radio wave to the key.

(e) The key receives the radio wave, and returns a

radio wave response to the transponder key amplifier.

(f) The transponder key amplifier combines the key ID

codes with the radio wave response, and transmits it to the certification ECU.

(g) The certification ECU judges and verifies the ID

code, and transmits a key verification OK signal to the main body ECU. The buzzer in the combination meter sounds at the same time.

(h) After the buzzer sounds, if the engine switch is

pressed within 5 seconds with the brake pedal not depressed, the power source mode changes to on (ACC) or on (IG), the same as in the normal condition.

7. DIAGNOSIS

The main body ECU can detect malfunctions in the pushbutton start function when the power source mode is on (IG). When the ECU detects a malfunction, the amber indicator light of the engine switch flashes to warn the driver. At the same time, the ECU stores a 5-digit DTC (Diagnostic Trouble Code) in the memory.

• The indicator light warning continues for 15 seconds even after the power source mode is changed to off.

• The DTC can be read by connecting the intelligent tester to the DLC3.

• The push-button start function cannot be operated if a malfunction occurs.

ST–16

2GR-FE STARTING – SMART KEY SYSTEM

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

• Use the following procedures to troubleshoot the pushbutton start function.

• The intelligent tester should be used in steps 4, 5 and 8.

VEHICLE BROUGHT TO WORKSHOP

CUSTOMER PROBLEM ANALYSIS CHECK

HINT:

• In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

• Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

• The following 5 items are important points in the problem analysis:

What Vehicle model, system name When Date, time, occurrence frequency Where Road conditions Under what conditions? Running conditions, driving conditions, weather conditions How did it happen? Problem symptoms

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM

(a) Use the intelligent tester to check if the CAN

Communication System is functioning normally (See page CA-8).

2GR-FE STARTING – SMART KEY SYSTEM

Result

Result Proceed to CAN DTC is not output A CAN DTC is output B

ST–17

CHECK FOR DTC

INSPECT BASIC OPERATION

GO TO CAN COMMUNICATION SYSTEM

(a) Check for DTCs and note any codes that are output (See

page ST-26). (b) Delete DTCs. (c) Recheck for DTCs.

Result

Result Proceed to DTC does not reoccur A DTC reoccurs B

GO TO DIAGNOSTIC TROUBLE CODE CHART

(a) Turn the engine switch on (START) and check that the

engine starts normally. Make sure the brake pedal is depressed and the shift position is P at this time.

(b) Check that the engine switch mode can be changed by

pushing the engine switch. HINT: Without depressing the brake pedal, push the engine switch repeatedly. Engine switch mode should turn from off to on (ACC) to on (IG) and back to off. With the brake pedal depressed, push the engine switch repeatedly. Engine switch mode should turn to ENGINE START from any status.

OK:

Engine can start normally.

PROBLEM SYMPTOMS TABLE

Result

Result Proceed to Fault is not listed in the problem symptoms table A Fault is listed in the problem symptoms table B

ST–18

2GR-FE STARTING – SMART KEY SYSTEM

OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU (See page ST-19) (b) DATA LIST/ACTIVE TEST (See page ST-26)

REPAIR OR REPLACE

CONFIRMATION TEST

Go to step 9

END

2GR-FE STARTING – SMART KEY SYSTEM

PROBLEM SYMPTOMS TABLE

HINT:

• Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace p arts as necessary.

• Inspect the fuses and relays related to the system before inspecting the suspected areas below.

PUSH-BUTTON START FUNCTION:

Symptom Suspected area See page

1. AM2 Fuse ST-114

2. Engine Switch -

3. Wire Harness or Connector -

Power does not turn on (neither ACC nor IG is possible).

Power is not turned on (only ACC is not turned on).

Power is not turned on (only IG is not turned on).

Engine does not start.

Engine switch indicator light does not come on. Engine Switch Indicator Light Circuit ST-110

4. Main Body ECU (Instrument Panel J/B) -

5. Certification ECU -

6. ID Code Box -

7. Steering Lock ECU -

8. Smart Key System (Entry Function) -

1. AM2 Fuse ST-131

2. Wire Harness or Connector -

3. Main Body ECU (Instrument Panel J/B) -

1. AM2 Fuse ST-122

2. IG1 Relay -

3. IG2 Relay -

4. Wire Harness or Connector -

5. Main Body ECU (Instrument Panel J/B) -

1. Main Body ECU (Instrument Panel J/B) ST-95

2. Certification ECU -

3. Shift Lock Control ECU -

4. ID Code Box -

5. Stop SW Fuse -

6. Stop Light Switch -

7. Electrical Steering Lock Function -

8. Engine Control System -

9. Engine Immobiliser System -

10. Wire Harness or Connector -

ST–19

ST–20

Front Side:

2GR-FE STARTING – SMART KEY SYSTEM

TERMINALS OF ECU

1. CHECK MAIN BODY ECU (INSTRUMENT PANEL J/B)

Back Side:

E7 E6

II IH

B112605E03

(a) Disconnect the IR, IA, IK, ID, IF, IM E6, E7 and E8

ECU connectors.

2GR-FE STARTING – SMART KEY SYSTEM

(b) Measure the voltage and resistance of the wire

harness side connector.

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

AM1 (E7-6) - Body ground L - Body ground +B power supply Always 10 to 14 V

AM2 (E6-1) - Body ground L - Body ground +B power supply Always 10 to 14 V SSW1 (E7-17) - Body ground L - Body ground Engine switch signal Engine switch pushed Below 1 Ω SSW1 (E7-17) - Body ground L - Body ground Engine switch signal Engine switch not pushed 10 kΩ or higher SSW2 (E7-16) - Body ground V - Body ground Engine switch signal Engine switch pushed Below 1 Ω SSW2 (E7-16) - Body ground V - Body ground Engine switch signal Engine switch not pushed 10 kΩ or higher

GND3 (E8-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

LIN1 (IR-9) - Body ground O - Body ground LIN line Always 10 kΩ or higher

BATB (IA-1) - Body ground B - Body ground +B Power supply Always 10 to 14 V

GND1 (IF-10) - Body ground W-B - Body ground Ground Always Below 1 Ω

GND2 (IM-9) - Body ground W-B - Body ground Ground Always Below 1 Ω

CANN (E8-15) - Body ground W - Body ground CAN Line Always 10 kΩ or higher

CANP (E8-16) - Body ground L - Body ground CAN Line Always 10 kΩ or higher

CANH (E8-5) - Body ground R - Body ground CAN Line Always 10 kΩ or higher CANL (E8-6) - Body ground W - Body ground CAN Line Always 10 kΩ or higher

ACC (IA-1) - Body ground B - Body ground ACC power supply Always 10 to 14 V

IG (IA-1) - Body ground B - Body ground IG power supply Always 10 to 14 V

ST–21

If the result is not as specified, there may be a

malfunction on the wire harness side. (c) Reconnect the ECU connectors. (d) Measure the voltage of the connector.

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

Output voltage at terminal

ACCD (E7-22) - GND3 (E8-1) W - W-B ACC signal Engine switch on (ACC)

ACCD (E7-22) - GND3 (E8-1) W - W-B ACC signal Engine switch off Below 1 V

IG1D (E7-3) - GND3 (E8-1) P - W-B IG1 signal Engine switch on (IG)

IG1D (E7-3) - GND3 (E8-1) P - W-B IG1 signal Engine switch on (ACC) Below 1 V

IG2D (E6-11) - GND3 (E8-1) LG - W-B IG2 signal Engine switch on (IG)

IG2D (E6-11) - GND3 (E8-1) LG - W-B IG2 signal Engine switch on (ACC) Below 1 V

STP (IL-7) - GND3 (E8-1) L - W-B Stop light signal Brake pedal depressed

STP (IL-7) - GND3 (E8-1) L - W-B Stop light signal Brake pedal released Below 1 V

SLR+ (E7-19) - GND3 (E8-1) BR - W-B Steering lock motor signal

SLP (E7-18) - GND3 (E8-1) P - W-B

SPD (E8-9) - GND3 (E8-1) V - W-B Vehicle speed signal

TACH (E8-8) - GND3 (E8-1) B - W-B Tachometer signal Engine running

Steering lock actuator

position signal

Steering lock actuator

position signal

Steering lock motor

operating

Steering lock motor does

not operate

Steering lock is locked

Steering lock is released

Engine switch on (IG),

rotate rear wheel slowly

AM1 or AM2 is -2 V or

more.

Output voltage at terminal

AM1 or AM2 is -2 V or

more.

Output voltage at terminal

AM1 or AM2 is -2 V or

more.

Output voltage at terminal

AM1 or AM2 is -2 V or

more.

Below 1 V

Output voltage at terminal

AM1 or AM2 is -2 V or

more.

Pulse generation

(See waveform 3)

Pulse generation

(See waveform 3)

Pulse generation

(See waveform 1)

Pulse generation

(See waveform 2)

ST–22

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

P (E9-2) - GND3 (E8-1) G - W-B Shift lock signal Shift lever P position

P (E9-2) - GND3 (E8-1) G - W-B Shift lock signal Shift lever not P position Below 1 V

ACCR (E6-3) - GND3 (E8-1) P - W-B Starter assist signal

STSW (E9-4) - GND3 (E8-1) GR - W-B

STR (E7-8) - GND3 (E8-1) G - W-B

STR2 (E9-6) - GND3 (E8-1) V - W-B Starter signal

INDS (E7-15) - GND3 (E8-1) LG - W-B Vehicle condition signal

INDW (E7-14) - GND3 (E8-1) P - W-B Warning signal

SWIL (E7-25) - GND3 (E8-1) O - W-B Illumination signal

2GR-FE STARTING – SMART KEY SYSTEM

Brake pedal depressed,

shift lever P position,

engine switch is pushed

once → on (IG)

Starter activation request

signal

Park/neutral position

switch

Brake pedal depressed,

engine switch held on (ST)

Shift lever P or N position Below 1 V

Brake pedal depressed,

shift lever P or N position,

engine switch on (ST)

Brake pedal depressed,

shift lever P position.

Brake pedal depressed,

shift lever P position,

engine switch on (ACC,

Light control switch TAIL

or HEAD

IG)

Output voltage at terminal

AM1 or AM2 is -2 V or

more.

0.1 to 0.8 V *

→ Output voltage at

terminal AM1 or AM2 is -2

V or more.

Output voltage at terminal

AM1 or AM2 is -2 V or

more.

Output voltage at terminal

AM1 or AM2 is -3.5 V or

more. *

Output voltage at terminal

AM1 or AM2 is -3 V or

more.

Output voltage at terminal

AM1 or AM2 is -3 V or

more.

Output voltage at terminal

AM1 or AM2 is -2 V or

more.

GND

I042329E01

HINT:

: Voltage is output only when the engine is

* cranking.

: Voltage is output for 0.3 seconds when the

* engine is cranking to start. Disconnect the C55 connector from the ECM before measuring the voltage. If the result is not as specified, the ECU may have a malfunction.

(e) Using an oscilloscope, check the signal waveform of

the ECU. (1) Waveform 1

Waveform 1 (Reference):

Terminal No. E8-9 (SPD) - Body ground Tool Setting 5 V/DIV., 10 ms./DIV. Vehicle Condition Driving at approx. 20 km/h (12 mph)

HINT: As the vehicle speed increases, the wavelength shortens.

2GR-FE STARTING – SMART KEY SYSTEM

(2) Waveform 2

Waveform 2 (Reference):

Terminal No. E8-8 (TACH) - Body ground Tool Setting 5 V/DIV., 10 ms./DIV. Vehicle Condition Engine idling

ST–23

Lock

Unlock

E58

GND

I042330E01

GND

A130277E01

HINT: As the engine revolution speed increases, the wavelength shortens.

(3) Waveform 3

Waveform 3 (Reference):

Terminal No. E7-18 (SLP) - Body ground Tool Setting 2 V/DIV., 100 ms./DIV. Vehicle Condition Steering lock/unlock

2. CHECK CERTIFICATION ECU

E59

(a) Disconnect the E58 ECU connector. (b) Measure the voltage and resistance of the wire

harness side connector.

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

+B (E58-1) - Body ground W - Body ground +B power supply Always 10 to 14 V IG (E58-18) - Body ground LG - Body ground Ignition power supply Engine switch on (IG) 10 to 14 V IG (E58-18) - Body ground LG - Body ground Ignition power supply Engine switch off Below 1 V

LIN (E58-10) - Body ground O - Body ground LIN line Always 10 kΩ or higher

E (E58-17) - Body ground W-B - Body ground Ground Always Below 1 Ω

If the result is not as specified, there may be a malfunction on the wire harness side.

E125964E05

ST–24

2GR-FE STARTING – SMART KEY SYSTEM

3. CHECK ECM

C55























A55























(a) Disconnect the C55 and A55 ECM connectors. (b) Measure the voltage and resistance of the wire

harness side connectors.

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

+B (A55-2) - Body ground R - Body ground Power source of ECM Engine switch on (IG) 10 to 14 V

+B2 (A55-1) - Body ground R - Body ground Power source of ECM Engine switch on (IG) 10 to 14 V

IGSW (A55-28) - Body ground Y - Body ground Ignition switch signal Engine switch on (IG) 10 to 14 V

E01 (C55-22) - Body ground W-B - Body ground Ground Always Below 1 Ω E02 (C55-21) - Body ground W-B - Body ground Ground Always Below 1 Ω

E03 (C55-104) - Body ground B - Body ground Ground Always Below 1 Ω

E04 (C55-23) - Body ground W - Body ground Ground Always Below 1 Ω E05 (C55-46) - Body ground W - Body ground Ground Always Below 1 Ω

E1 (C55-81) - Body ground W-B - Body ground Ground Always Below 1 Ω

ME01 (C55-20) - Body ground B - Body ground Ground Always Below 1 Ω

A107881E32

If the result is not as specified, there may be a

malfunction on the wire harness side. (c) Reconnect the ECM connectors. (d) Measure the voltage of the connectors.

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

STA (A55-48) - E1 (C55-81) V - W-B

ACCR (A55-13) - E1 (C55-81) B - W-B

TACH (A55-15) - E1 (C55-81) B - W-B

STP (A55-36) - E1 (C55-81) W - W-B

STAR (C55-63) - E1 (C55-81) R - W-B PNP switch signal (input)

Starter relay operation

signal

ACC relay cut signal

(output)

Engine revolution signal

(output)

Stop light switch signal

(input)

Stop light switch signal

(input)

Cranking 10 to 14 V

Brake pedal depressed,

shift lever P position,

engine switch is pushed

once → on (IG)

Idling

Brake pedal depressed 7.5 to 14 V

Brake pedal released Below 1.5 V

Engine switch on (IG),

shift position P or N

0.1 to 0.8 V *

voltage at terminal AM1 or

AM2 is -2 V or more.

Pulse generation (see

→ Output

waveform 1)

10 to 14 V

HINT:

: Voltage is output only when the engine is

cranking.

2GR-FE STARTING – SMART KEY SYSTEM

If the result is not as specified, the ECM may have a malfunction.

(e) Using an oscilloscope, check the signal waveform of

the ECM.

Waveform 1 (Reference):

Terminal No. A55-15 (TACH) - C55-81 (E1) Tool Setting 5 V/DIV., 10 ms./DIV. Vehicle Condition Engine idling

GND

HINT: As the vehicle speed increases, the wavelength

I042330E01

shortens.

4. CHECK STEERING LOCK ECU

E51

1234567

ST–25

(a) Disconnect the E51 ECU connector. (b) Measure the voltage and resistance of the wire

harness side connector.

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

B (E51-7) - Body ground P - Body ground +B power supply Always 10 to 14 V IG2 (E51-6) - Body ground B - Body ground Ignition power supply Engine switch on (IG) 10 to 14 V IG2 (E51-6) - Body ground B - Body ground Ignition power supply Engine switch off Below 1 V

GND (E51-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

SGND (E51-2) - Body ground W-B - Body ground Ground Always Below 1 Ω

If the result is not as specified, there may be a

malfunction on the wire harness side. (c) Reconnect the E51 ECU connector. (d) Measure the voltage of the connector.

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

SLP1 (E51-4) - GND (E51-1) P - W-B

Steering lock actuator

position signal

Steering lock actuator

position signal

Steering is locked 10 to 14 V

Steering is released Below 1 V

If the result is not as specified, the ECU may have a

malfunction.

B106649E13

ST–26

CANH

2GR-FE STARTING – SMART KEY SYSTEM

DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) Push-button start function data and the Diagnostic

Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the function seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs.

2. CHECK DLC3

HINT:

SIL

The ECU uses ISO 15765-4 communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.

CANL

Symbols (Terminal No.) Terminal Description Condition Specified Condition

CG (4) - Body ground Chassis ground Always Below 1 Ω SG (5) - Body ground Signal ground Always Below 1 Ω SIL (7) - SG (5) Bus "+" line During transmission Pulse generation BAT (16) - Body ground Battery positive Always 10 to 14 V

CANH (6) - CANL (14) CAN bus line CANH (6) - CG (4) HIGH-level CAN bus line CANL (14) - CG (4) LOW-level CAN bus line CANH (6) - BAT (16) HIGH-level CAN bus line CANL (14) - BAT (16) LOW-level CAN bus line

BAT

H100769E16

Engine Switch OFF Engine Switch OFF Engine Switch OFF Engine Switch OFF Engine Switch OFF

56 to 69 Ω 200 Ω or more 200 Ω or more 6 kΩ or more 6 kΩ or more

NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the engine switch, any other switches or the doors.

If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.

DLC3

CAN VIM

Intelligent Tester

CAN VIM

Intelligent Tester

2GR-FE STARTING – SMART KEY SYSTEM

HINT: Connect the cable of the intelligent tester to the DLC3, turn the engine switch on (IG) and attempt to use the tester. If the display indicates that a communica tion error has occurred, there is a problem either with the vehicle or with the tester.

• If communication is normal when the tester is

connected to another vehicle, inspect the DLC3 of the original vehicle.

• If communication is still not possible when the tester

is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual.

3. INSPECT BATTERY VOLTAGE

C131977E12

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

DTC CHECK / CLEAR

1. CHECK DTC

(a) Connect the intelligent tester to the DLC3. (b) Turn the engine switch on (IG). (c) Enter the following menu items: DIAGNOSIS /

ENHANCED OBD II / DTC INFO / CURRENT

CODES. (d) Read the DTC by following the prompts on the

tester screen.

HINT:

Refer to the intelligent tester operator's manual for

further details.

2. CLEAR DTC

C131977E12

(a) Connect the intelligent tester to the DLC3. (b) Turn the engine switch on (IG). (c) Enter the following menu items: DIAGNOSIS /

ENHANCED OBD II / DTC INFO / CLEAR CODES. (d) Erase the DTC by following the directions on the

tester screen.

HINT: Refer to the intelligent tester operator's manual for further details.

ST–27

ST–28

MAIN BODY:

Item

ACC SW

IG SW

SHIFT P SIG

STR UNLOCK SW

STOP LAMP SW Stop light switch / ON or OFF

STSW1 Start switch 1 / ON or OFF

START SW2 Start switch 2 / ON or OFF

N SW / C SW Neutral start switch / ON or OFF

RATCH CIRCUIT Ratch circuit / ON or OFF

IG1 RELAY MON1

IG1 RELAY MON2

IG2 RELAY MON1

IG2 RELAY MON2

ST RELAY MON

2GR-FE STARTING – SMART KEY SYSTEM

DATA LIST / ACTIVE TEST

1. READ DATA LIST

HINT: Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful as intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the DATA LIST information early in troubleshooting is one way to save diagnostic time. (a) Connect the intelligent tester (with CAN VIM) to the

DLC3. When using the intelligent tester with the engine switch off, turn on and off any of the door courtesy light switches repeatedly at 1.5 or less second intervals until communication between the tester

and vehicle starts. (b) Turn the engine switch on (IG). (c) Enter the following menus: DIAGNOSIS /

ENHANCED OBD II / DATA LIST. (d) Read the DATA LIST.

Measurement Item / Display

(Range)

Engine switch on (ACC) / ON or OFF

Engine switch on (IG) / ON or OFF

Shift P position signal / ON or OFF

Steering lock condition / ON or OFF

IG1 outer relay monitor / ON or OFF

IG1 inner relay monitor / ON or OFF

IG2 outer relay monitor / ON or OFF

IG2 inner relay monitor / ON or OFF

STARTER relay monitor / ON or OFF

Normal Condition Diagnostic Note

ON: Engine switch on (ACC) OFF: Engine switch off

ON: Engine switch on (IG) OFF: Engine switch off

ON: Shift position is P OFF: Shift position is not P

ON: Steering is unlocked OFF: Steering is locked

ON: Brake pedal depressed OFF: Brake pedal released

ON: Engine switch is pushed OFF: Engine switch is not pushed

ON: Shift position is P or N OFF: Shift position is neither P nor N

ON: Engine switch on (IG) or engine running OFF: Engine switch off or on (ACC)

ON: Engine switch on (IG) OFF: Engine switch off

ON: Engine is cranking OFF: Engine is not cranking

Engine is cranking with engine switch on (IG) and shift lever in P or N

2GR-FE STARTING – SMART KEY SYSTEM

ST–29

Item

ST REQUEST SIG

ACC RELAY MON ACC relay monitor / ON or OFF

ACC CUT SIG ACC relay cut signal / ON or OFF

E/G COND Engine condition / STOP or RUN

VEHICLE SPD SIG

PWR COND

READY SIG

COM ENTRY&STRT

Measurement Item / Display

(Range)

Starter request signal monitor / ON or OFF

Vehicle speed signal / STOP or RUN

Power supply condition / ALL, ACC ON, IG1 IG2, ST ON

Ready Signal / ON or OFF or Unknown

Communication for certification ECU / OK or STOP

Normal Condition Diagnostic Note

ON: ST relay is ON OFF: ST relay is OFF

ON: Engine switch on (ACC) OFF: Engine switch off

ON: Engine is cranking OFF: Engine is not cranking

STOP: Engine is stopped RUN: Engine is running

STOP: Vehicle is stopped RUN: Vehicle is running

ALL: All relays are OFF ACC ON: ACC relay is ON IG1: IG1 relay is ON IG2: IG2 relay is ON ST ON: ST request signal is ON

OK: Communication STOP: No communication

2. PERFORM ACTIVE TEST

HINT: Performing the intelligent tester's ACTIVE TEST allows the relay, VSV, actuator and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time. The DATA LIST can be displayed during the ACTIVE TEST. (a) Connect the intelligent tester to the DLC3 (b) Turn the engine switch on (IG). (c) Enter the following menus: DIAGNOSIS /

ENHANCED OBD II / ACTIVE TEST.

(d) Perform the ACTIVE TEST according to the display

on the tester.

MAIN BODY:

Item Test Details Diagnostic Note

LIGHTING IND Indicator for lighting ON / OFF IND CONDITION Engine switch indicator Green / Amber / No

STR LOCK PWR Power supply for steering lock ECU ON / OFF -

Sig

Engine switch pressed and held with shift lever in P or N

ST–30

2GR-FE STARTING – SMART KEY SYSTEM

PUSH-BUTTON START FUNCTION:

DTC No. Detection Item Trouble Area See page

B2271 Ignition Hold Monitor Malfunction 1. AM2 fuse

B2272 Ignition 1 Monitor Malfunction 1. IG1 relay

B2273 Ignition 2 Monitor Malfunction 1. IG2 relay

B2274 ACC Monitor Malfunction 1. ACC relay

B2275 STSW Monitor Malfunction 1. ECM

B2276 ACCR Signal Circuit Malfunction 1. Main body ECU (Instrument

B2277 Detecting Vehicle Submersion Main body ECU (Instrument panel

B2278 Engine Switch Circuit Malfunction 1. Engine switch

B2281 "P" Signal Malfunction 1. Main body ECU (Instrument

B2282 Vehicle Speed Signal Malfunction 1. CAN communication system

B2283 Vehicle Speed Sensor

Malfunction

B2284 Brake Signal Malfunction 1. Stop light switch

B2285 Steering Lock Position Signal

Circuit Malfunction

B2286 Runnable Signal Malfunction 1. CAN communication system

DIAGNOSTIC TROUBLE CODE CHART

ST-31

2. Main body ECU (Instrument panel J/B)

3. Wire harness or connector

2. Main body ECU (Instrument panel J/B)

3. Wire harness or connector

2. Main body ECU (Instrument panel J/B)

3. Wire harness or connector

2. Main body ECU (Instrument panel J/B)

3. Wire harness or connector

2. Main body ECU (Instrument panel J/B)

3. Wire harness or connector

panel J/B)

2. ECM

3. Wire harness or connector

J/B)

2. Main body ECU (Instrument panel J/B)

3. Wire harness or connector

panel J/B)

2. Shift lock control ECU

3. Wire harness or connector

2. Combination meter system

3. Main body ECU (Instrument panel J/B)

4. Wire harness or connector

1. B2282 detection area

2. Combination meter

3. Speed sensor

4. Skid control ECU

5. Main body ECU (Instrument panel J/B)

6. Wire harness or connector

2. CAN communication system

3. ECM

4. Main body ECU (Instrument panel J/B) 5 Wire harness or connector

1. Main body ECU (Instrument panel J/B)

2. Steering lock ECU

3. Wire harness or connector

2. ECM

3. Main body ECU (Instrument panel J/B)

4. Wire harness or connector

ST-34

ST-39

ST-43

ST-48

ST-51

ST-54

ST-55

ST-60

ST-63

ST-69

ST-72

ST-77

ST-81

+ 129 hidden pages

Toyota Camry 2007-2009 Service Manual - 2GR-FE_Starting

Specifications and Main Features

Frequently Asked Questions

User Manual