Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS00B9V
A
The Supplemental Rest raint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used al ong
with a front seat belt, helps to redu ce th e risk or se verit y of i njury to the driv er and front passenge r for ce rtain
types of col lision. Information necessary to service the system safely is includ ed in the SRS a nd SB section of
this Service Manual.
WARNING:
●To avoid rendering the SRS inopera tive, whi ch could incr ease the risk of pe rsonal 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/INFINITI dealer.
●Improper maintenance, inc luding incorrect removal and installation of the SRS, can lead to per-
sonal injury ca use d by unintentional ac tiv atio n o f the s ys t em . F or re mo va l of Spiral Cable and Ai r
Bag Module, see the SRS sec tion.
●Do not use electrical test equ ipment o n any circu it related to the SRS unless in structed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Wiring Diagrams and Trouble Diagnosis AKS00B9W
When reading wiring diagrams, refer to the following:
●GI-14, "How to Read Wiring Diagrams" in GI section
●PG-2, "POWER SUPPLY ROUTING" for power distribution circuit in PG section
When performing trouble diagnosis, refer to the following:
●GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section
●GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
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DI-3
COMBINATION METERS
COMBINATION METERSPFP:24814
System DescriptionAKS00B9X
UNIFIED METER CONTROL UNIT
●Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled by the
unified meter control unit, which is built into the combination meter.
●Digital meter is adopted for odo/trip meter*.
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
●Meter/gauge and odo/trip meter segments can be checked in diagnosis mode.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all time s
●through 10 A fuse [No. 28, located in the fuse block (J/B)]
●to combination meter terminal 1.
With the ignition switch in the ON or START position, power is supplied
●through 10 A fuse [No. 11, located in the fuse block (J/B)]
●to combination meter terminal 2.
Ground is supplied
●to combination meter terminal 21
●through grounds M27 and M70.
ODO/TRIP METER, CLOCK AND AMBIENT TEMPERATURE INDICATOR
●The vehicle speed s ignal and the memory sig nals from the meter memory c ircuit are processed by t he
combination meter and the mileage is displayed.
●Ambient temperature indicator indicates signal from ambient sensor processed by the combination meter.
How to Change The Display
Depressing the odo/trip meter switch toggles the mode in the following order.
SKIA8917E
●The odo/tr ip mete r displ a y mo de togg li ng an d tr ip di spla y r es ett i ng can be ide nt i fie d b y th e a mo unt o f t ime
that elapses from pressing the odo/trip meter switch to releasing it.
●When resetting with trip A displayed, only trip A display is reset. (The same way for trip B.)
SPEEDOMETER
VDC/TCS/ABS control unit [with VDC] or ABS actuator and electric unit (control unit) [without VDC] provides a
vehicle speed signal to the combination meter for the speedometer with CAN communication line.
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DI-4
COMBINATION METERS
TACHOMETER
The tachometer indicates engine speed in revol uti on s pe r minu te (rpm).
ECM provides an engine speed signal to combination meter for tachometer with CAN communicati on line.
A
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature.
ECM provides an engine coolant temperature signal to combination meter for water temperature gauge with
CAN communication line.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied
●from grounds M2 7 an d M70
●through terminals 1 and 4 of the fuel level sensor unit
●through terminals 3 and 1 of the sub fuel level sensor unit and
●to combination meter terminal 8 for the fuel gauge.
AMBIENT TEMPERATURE INDICATOR
The ambient temperature is indicated by the signal from ambient sensor.
Combination meter inputs voltage conversed from resistance which ambient sensor detects.
Indication range is between -30 an d 5 5 °C (-22 a nd 13 1 °F). When ambient temperature is less than -30 °C (22 °F) or more than 55 °C (13 1 °F ), di splay shows “--- °C”. When in dica ted te mpera tu re bec omes less tha n 3
°C (37 °F), ambient temperature indicator flashes as a sign of warning.
Without Auto A/C
Power is supplied
●through combination meter terminal 27
●to ambient sensor terminal 1.
Ground is supplied
●to combination meter terminal 28
●through ambient sensor terminal 2.
Signal is supplied
●through ambient sensor terminal 1
●to combination meter terminal 27.
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With Auto A/C
Power is supplied
●through A/C auto amp. terminal 9
●to ambient sensor terminal 1.
Ground is supplied
●to combination meter terminal 28 and A/C auto amp. terminal 24
●through ambient sensor terminal 2.
And combination meter receives ambient sensor signal from ambient sensor
●through ambient sensor terminal 1
●to combination meter terminal 27.
NOTE:
Combination m eter distinguishes whet her or not combinatio n meter terminal 29 rece ives voltage (Auto A/C
recognition signal) from A/C auto amp. terminal 28. If the terminal receives, combination meter discerns as
auto A/C.
Indication When Turning Ignition Switch OFF
●In a case that temperature detected by ambient sensor is higher than indicated temperature before turn-
ing ignition switch off.
–In a case of more than 3.5 hou rs afte r turning ignition switc h off, tem pe r at ure det ec ted by am bi en t se ns or
is indicated when turning ignition switch on.
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COMBINATION METERS
–In a case of less then 3.5 hours after turning ignition switch off, temperature at the time of turning ignition
switch off is indicated.
●In a case that temperature detected by ambient sensor is lower than indicated temperature before turning
ignition switch off.
–Temperature detected by ambient sensor is indicated when turning ignition switch on.
Indication During Running
Though temperature detected by ambient sensor temporarily changed, indicating temperature continentally
indicates.
●In a case that temperature detected by ambient sensor is higher than indicated temperature.
–If vehicle speed is more than 20 km/h (13 MPH), elevation of indicating temperature is limited according to
the speed until temperature detected by ambient sensor is indicated.
NOTE:
Vehicle speed 20 km/h (13 MPH): 256 sec., 25 km/h (16 MPH): 238 sec., 35 km/h (22 MPH): 200 sec., 50
km/h (31 MPH): 144 sec., 65 km/h (40 MPH): 88 sec., more than 80 km/h (50 MPH): 32 sec.
–If vehicle speed is more than 20 km/h (13 MPH), and that temperature detected by ambient sensor
becomes 8 °C (46 °F) more than indicating temperature, indicating temperature will be elevated unit the
degree becomes sa me as temperature detecte d by ambient sensor with limitin g elevation of indicating
temperature 1 °C par a minute.
–If vehicle speed is less th an 20 km/h (13 MPH) , indicating temperature is con tinually kept.
●In a case that temperature detected by ambient sensor is lower than indicated temperature.
–Temperature detected by ambient sensor is indicated during running.
CAN CommunicationAKS00BQ7
SYSTEM DESCRIPTION
CAN (Controller Area N et w ork ) is a s eri al co mm u nic a tio n l ine for real time appl ic ati on . It is an on-vehicle multiplex communi catio n lin e wit h high da t a comm unic ation speed and ex cellen t er ror det ecti on ab ilit y. Many electronic control u nits are eq uipped o nto a ve hicle, a nd eac h control unit sh ares info rmation and link s with ot her
control units duri ng operation (not independent). In CAN communicatio n, control units ar e connected wi th 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN COMMUNICATION UNIT
Refer to LAN-16, "CAN Communication Unit" in “LAN SYSTEM”.
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COMBINATION METERS
Arrangement of Combination MeterAKS00BA1
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SKIB0505E
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DI-7
COMBINATION METERS
Component Parts and Harness Connector LocationAKS00BA0
SKIB0506E
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DI-8
COMBINATION METERS
SchematicAKS00BA2
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TKWB0170E
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DI-9
COMBINATION METERS
Wiring Diagram — METER — AKS00BA3
AWD MODELS
TKWB0171E
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DI-10
COMBINATION METERS
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TKWB0172E
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DI-11
2WD MODELS
COMBINATION METERS
TKWB0173E
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DI-12
COMBINATION METERS
A
B
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TKWB0174E
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DI-13
COMBINATION METERS
Terminals and Reference Value for Combination MeterAKS00BA6
Terminal
No.
1LBattery power supplyOFF—Battery voltage
2Y/GI gni t ion switch (ON )ON—Battery voltage
Self-Diagnosis Mo de of Combi na tio n Mete rAKS00BA7
SELF-DIAGNOSIS FUNCTION
●Odo/trip meter segment operation can be checked in self-diagnosis mode.
●Meters/gauges can be checked in self-diagnosis mode.
OPERATION PROCEDURE
1.Turn the ignition switch ON, and switch the odo/trip meter to “trip A” or “trip B”.
NOTE:
If the diagnosis f unction is activated with the trip mete r A displayed , the mileage on the trip m eter A will
indicate 0.0 mile, but the actual trip mileage will be retained. (The same way for trip B.)
2.Turn ignition switch OFF.
3.While pushing the odo/trip meter switch, turn ignition switch ON again.
4.Make sure that the trip meter displays “0.0”.
5.Push the odo/trip meter switch at least 3 times. (Within 7 seconds after the ignition switch is turned ON.)
6.All the segmen ts on the odo/trip me ter illumi nate, and si multaneou sly the low -fuel warn ing lamp indi cato r
illuminates. At this time, the unified meter control unit is turned to diagnosis mode.
NOTE:
If any of the segments is not displayed, replace the combination
meter.
SKIA8920E
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DI-14
COMBINATION METERS
7.Push the odo /trip meter switch. Each meter/gauge sh ould indicate as shown in the figure while pushing odo/trip meter switch.
(At this time, the low-fuel warning lamp goes off.)
SKIB0507E
Trouble DiagnosisAKS00BQ6
HOW TO PROCEED WITH TROUBLE DIAGNOSIS
1.Confirm the symptom or customer complaint.
2.Perform preliminary check. Refer to DI-15, "
3.Accordin g to th e trouble diagnosi s c ha rt, re pair or re pl ac e th e c a us e o f sy m pto m . R efe r to DI-16, "
TOM CHART" .
4.Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5.INSPECTION END
PRELIMINARY CHECK" .
SYMP-
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PRELIMINARY CHECK
1. CHECK WARNING LAMP ILLUMINATION
1.Turn ignition switch ON.
2.Make sure that war ning lamp (such as MIL and oil pressure warning lamp) illuminat e.
Does warning lamp illuminate?
YES>> GO TO 2.
NO>> GO TO 3.
2. CHECK SELF-DIAGNOSIS OPERATION
Perform combination meter self-diagnosis. Refer to DI-14, "
Does self-diagnosis function operate?
YES>> GO TO 4.
NO>> GO TO 3.
SELF-DIAGNOSIS FUNCTION" .
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to DI-16, "
OK or NG
OK>> Replace combination meter.
NG>> Repair as need.
Power Supply an d Ground Circuit Inspection" .
4. CHECK ODO/TRIP METER OPERATION
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Check segment display status of odo/trip meter.
Is the display normal?
YES>> GO TO 5.
NO>> Replace combination meter.
SKIA8920E
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DI-15
COMBINATION METERS
5. CHECK LOW-FUEL WARNING LAMP ILLUMINATION
During inspection of low-fuel warning lamp, confirm illumination of low-fuel warning lamp.
Condition of odo/trip meter switchFuel warning lamp
PushedDoes not illuminate.
ReleasedIlluminates.
OK or NG
OK>> GO TO 6.
NG>> Replace combination meter.
6. CHECK METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode.
OK or NG
OK>> INSPECTION END
NG>> Replace combination meter.
SKIB0507E
SYMPTOM CHART
SymptomPossible cause
Indication is irregular for the speedometer and odo/trip meter.
Tachometer indication is malfunction.Refer to DI-17, "
Water temperature gauge indication is malfunction.Refer to DI-18, "
Low-fuel warning lamp indication is irregular.
Fuel gauge indication is malfunction.
Ambient temperature indicator is malfunction.
A/T position indicator is malfunction.Refer to DI-41, "
Refer to DI-17, "
17, "Vehicle Speed Signal Inspection (Without VDC)" .
Refer to DI-18, "
Refer to DI-20, "
A/C]" or DI-22, "Ambient Temperature Signal Inspection [With Auto A/
C]" .
Vehicle Speed Signal Inspection (With VDC)" or DI-
Engine Speed Signal Inspection" .
Engine Coolant Temperature Signal Inspection" .
Fuel Level Sensor Inspection" .
Ambient Temperature Signal Inspection [Without Auto
A/T Indicator Does Not Illuminate" .
Power Supply and Ground Circuit InspectionAKS00BAA
1. CHECK FUSE
Check for blown combination meter fuses.
UnitPower sourceFuse No.
Combination meter
OK or NG
OK>> GO TO 2.
NG>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
49, "FUSE BLOCK - JUNCTION BOX (J/B)" .
Battery 28
Ignition switch (ON) 11
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DI-16
COMBINATION METERS
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter and ground.
TerminalsIgnition switch position
(+)
ConnectorTerminal (Wire color)
M44
OK or NG
OK>> GO TO 3.
NG>> Check harness between combination meter and fuse.
2 (Y/G)
1 (L)Battery voltageBattery voltage
(–)OFFON
Ground
0 VBattery voltage
3. CHECK GROUND CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect combination meter conn ector.
3.Check continuity between combination meter harness connector
M44 terminal 21 (B) and ground.
21 (B) – Ground: Continuity should exist.
OK or NG
OK>> Power supply and ground circuit is OK.
NG>> Repair ground harness.
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SKIB0601E
Vehicle Speed Signal Inspection (With VDC)AKS00BLQ
1. CHECK VDC/TCS/ABS CONTROL UNIT SELF-DIAGNOSIS
Preform VDC/TCS/ABS control unit self-diagnosis. Refer to BRC-61, "
OK or NG
OK>> Replace combination meter.
NG>> Check applicable p arts, repa ir or replace corresponding parts.
Vehicle Speed Signal Inspection (Without VDC)AKS00BAG
CONSULT-II Functions" .
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT SELF-DIAGNOSIS
Preform ABS actuator and electric unit self-diagnosis. Refer to BRC-19, "
OK or NG
OK>> Replace combination meter.
NG>> Check applicable p arts, repa ir or replace corresponding parts.
Engine Speed Signal InspectionAKS00BAE
CONSULT-II Functions" .
1. CHECK ECM SELF-DIAGNOSIS
Perform ECM self-diagn os is . Refe r to EC-123, "
OK or NG