Fuel system INFINITI FX35 2004 User Guide

AV-78
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November 2004 FX35/FX45
Trouble Diagnosis Chart by SymptomAKS00BOI
Symptom Check item
No screen is shown.

Display unit power supply and ground circuit. Refer to AV- 7 9 , "Power Supply
and Ground Circuit Check for Display Unit" .

Display unit
Screen does not switch to nighttime mode after the
lighting switch is turned ON.

Illumination signal. Refer to AV-81, "Illumination Signal Inspection" .

Display unit
TRIP and FUEL ECON screen do not appear.

Ignition signal. Refer to AV- 8 2 , "Ignition Signal Inspection" .

Display unit

Trip odometer (DIST) is not added up.

Average vehicle speed (AVG) is not displayed.

Vehicle speed signal. Refer to AV- 8 0 , "Vehicle Speed Signal Inspection" .

Display unit
Average fuel consumption (AVG) is not displayed.

Vehicle speed signal. Refer to AV- 8 0 , "Vehicle Speed Signal Inspection" .

CAN communication line. Refer to AV- 8 5 , "CAN Communication Line Inspec-
tion" .

Display unit
Distance to empty (DTE) is not displayed.

Check if speedometer operates. If it does not operate, go to DI-17, "Vehicle
Speed Signal Inspection" .

Check if fuel gauge operates. If it does not operate, go to DI-20, "Fuel Level
Sensor Signal Inspection 1" .

CAN communication line. Refer to DI-22, "Communication Line Inspection" .

Display unit
Tire pressure is not displayed.

Ignition signal. Refer to AV- 8 2 , "Ignition Signal Inspection" .

Low tire pressure warning control unit. Refer to WT-17, "Self-Diagnosis" .

CAN communication line. Refer to DI-22, "Communication Line Inspection" .

Display unit
Door warning screen does not appear.

Ignition signal. Refer to AV- 8 2 , "Ignition Signal Inspection" .

Vehicle speed signal. Refer to AV- 8 0 , "Vehicle Speed Signal Inspection" .

CAN communication line. Refer to AV- 8 5 , "CAN Communication Line Inspec-
tion" .

Display unit
A/C and AV switch and all switch operation are not
possible.
(Do not start self-diagnosis.)Refer to AV-84, "
A/C and AV Switch Does Not Operate" .
Air conditioner operation is not possible.

A/C and AV switch. Refer to AV-41, "A/C and AV Switch Inspection" .

CAN communication line. Refer to AV- 8 5 , "CAN Communication Line Inspec-
tion" .

AV-102
NAVIGATION SYSTEM
Revision: 2004 November 2004 FX35/FX45
“TRACKING” MODE

To delete the tracking marks on the map, select “Off”.

To leave the tracking marks on the map, select “On”.
NOTE:
When a trail display is turned OFF, trail data is erased from the mem-
ory.
GUIDANCE VOLUME
Description
Following guidance volume setting can be changed.
Activation/Deactivation Setting

The voice prompt can be turned on/off by pressing the “Guidance Volume” button.
Vo i c e Vo l u m e S e t t i n g

Volume of the voice can be controlled by bending the joystick to left/right.
DISPLAY WITH PUSHED “TRIP” BUTTON

When the “TRIP” button is pushed, the following models will display on the screen.

Warning message (if there are any) →TRIP 1→TRIP 2→FUEL ECONOMY→MAINTENANCE→OFF.
SKIA0559E
SKIA4497E
Display items Display/Setting contentsReference
page
Trip 1 or Trip 2Elapsed TimeDisplays driving time with a range of 0000:00:00 to
9999:59:59.
AV- 1 0 3 ,
"TRIP 1 OR
TRIP 2"
Driving Distance
[(km) or (miles)] Displays driving distance with a range of 00000.0 to
99999.9.
Average speed
[(km/h) or (MPH)]Displays average speed with a range of 000.0 to 999.9.
Fuel EconomyAverage Fuel Economy
[(MPG) or (l/100km)]Displays fuel economy with ignition switch ON, average
fuel economy each 30 minutes.
AV- 1 0 3 ,
"FUEL
ECONOMY"
Distance to Empty
[(miles) or (km)]Displays possible driving distance with remaining fuel.
Fuel Economy
[(MPG) or (1/100 km)]Displays fuel economy each approx. 100 ms.
Maintenance Engine oilMaintenance intervals of engine oil and setting of oil
change cycle.
AV- 1 0 3 ,
"MAINTE-
NANCE"
Tire rotationMaintenance intervals of tire and setting of tire replace-
ment cycle.
Tire pressure
(If so equipped)Tire pressure displayed as tire pressure information.

NAVIGATION SYSTEM
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Revision: 2004 November 2004 FX35/FX45
TRIP 1 OR TRIP 2

Elapsed time, Driving distance and Average speed are dis-
played as Trip 1 information or Trip 2 information.

The way to reset is by pushing the “Reset” switch or by keeping
pushing “TRIP” button more than 1.5 seconds.
FUEL ECONOMY

Average Fuel Economy, Distance to Empty, Fuel Economy are
displayed as Fuel Economy information.

The way to reset is by pushing the “Reset” switch or by keeping
pushing “TRIP” button more than 1.5 seconds.
MAINTENANCE

Engine Oil, Tire Rotation and Tire Pressure are displayed as
Maintenance information.
NOTE:
In a case of a vehicle with Low tire pressure warning control unit,
“Tire Pressure” switch is displayed.
ENGINE OIL OR TIRE ROTATION

Possible to set up interval of engine oil and tire rotation by mov-
ing joystick right and left.
SKIA5990E
SKIA5991E
SKIA5992E
SKIA5993E

NAVIGATION SYSTEM
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Revision: 2004 November 2004 FX35/FX45
3. CHECK HORIZONTAL SYNCHRONIZING SIGNAL
1. Check signal between display control unit harness connector
M76 terminals 55 (R) and 49 with CONSULT-ll or oscilloscope.
OK or NG
OK >> Replace display control unit.
NG >> Replace display.
TRIP, FUEL ECON and MAINTENANCE Screens are Not ShownAKS00BNY
1. CHECK IGNITION SIGNAL
Check ignition signal. Refer to AV- 1 5 2 , "
Ignition Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Repair malfunctioning parts.
2. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply circuit for display. Refer to AV- 1 4 7 , "
Power Supply and Ground Circuit Check for Display"
.
OK or NG
OK >> GO TO 3.
NG >> Repair malfunctioning parts.
3. CHECK COMMUNICATION LINE
Check display communication line. Refer to AV- 1 5 6 , "
When Malfunctioning Connection Between Display Con-
trol Unit and Display" .
OK or NG
OK >> Replace display.
NG >> Check the malfunctioning parts.
Average Fuel Economy Displayed is Not Shown (“***” is Shown)AKS00BNZ
1. CHECK VEHICLE SPEED SIGNAL
Check vehicle speed signal. Refer to AV- 1 5 0 , "
Vehicle Speed Signal Check for Display Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Repair malfunctioning parts.
2. CHECK CAN COMMUNICATION LINE
Check CAN communication line. Refer to AV- 1 5 8 , "
CAN Communication Line Check" .
OK or NG
OK >> GO TO 3.
NG >> After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO LAN-4, "
Precautions When
Using CONSULT-II" . 55 – 49 : Refer to AV- 1 2 3 , "
Te r m i n a l s
and Reference Value for Dis-
play Control Unit" .
PKIA2888E

BL-2Revision: 2004 November 2004 FX35/FX45Trouble Diagnosis Chart by Symptom .................... 41
Check Door Switch ................................................. 42
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) ............................................................. 42
CHECK BACK DOOR SWITCH .......................... 44
Check Key Switch ................................................... 46
Check Door Lock and Unlock Switch ..................... 48
Check Door Lock Actuator (Driver side) ................. 50
Check Door Lock Actuator (Passenger Side and
Rear LH/RH) ........................................................... 51
Check Fuel Lid Opener Actuator ............................ 52
Check Front Door Key Cylinder Switch (Lock) ....... 53
Check Front Door Key Cylinder Switch (Unlock) .... 54
Check Select Unlock Relay Circuit ......................... 55
REMOTE KEYLESS ENTRY SYSTEM ..................... 56
Component Parts and Harness Connector Location ... 56
System Description ................................................. 57
INPUTS ............................................................... 57
OPERATED PROCEDURE ................................. 58
CAN Communication System Description .............. 59
CAN Communication Unit ....................................... 59
Schematic ............................................................... 60
Wiring Diagram — KEYLES— ................................ 61
FIG. 1 ................................................................... 61
FIG. 2 ................................................................... 62
FIG. 3 ................................................................... 63
Terminals and Reference Value for BCM ................ 64
Terminals and Reference Value for IPDM E/R ........ 65
CONSULT-II Function ............................................. 65
CONSULT-II INSPECTION PROCEDURE .......... 65
CONSULT-II APPLICATION ITEMS .................... 66
Work Flow ............................................................... 68
Trouble Diagnosis Chart by Symptom .................... 69
Check Key Fob Battery and Function ..................... 71
Check ACC Switch ................................................. 72
Check Door Switch ................................................. 73
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) ............................................................. 73
CHECK BACK DOOR SWITCH .......................... 75
Check Key Switch ................................................... 77
Check IPDM E/R Operation .................................... 78
Check Hazard Function .......................................... 79
Check Horn Function .............................................. 79
Check Headlamp Function ..................................... 79
Check Map Lamp and Ignition Keyhole Illumination
Function .................................................................. 79
ID Code Entry Procedure ....................................... 80
KEY FOB ID SET UP WITH CONSULT-II ........... 80
KEY FOB ID SET UP WITHOUT CONSULT-II .... 82
Key Fob Battery Replacement ................................ 83
INTELLIGENT KEY SYSTEM ................................... 84
Component Parts and Harness Connector Location ... 84
System Description ................................................. 86
DOOR LOCK FUNCTION ................................... 86
REMOTE CONTROL ENTRY FUNCTIONS ........ 87
ENGINE STARTUP FUNCTION .......................... 88
WARNING AND ALARM FUNCTION .................. 89
CHANGE SETTINGS FUNCTION ....................... 92
INTELLIGENT KEY REGISTRATION .................. 92STEERING LOCK UNIT REGISTRATION ........... 92
CAN Communication System Description .............. 93
CAN Communication Unit ....................................... 93
Schematic ............................................................... 94
Wiring Diagram — I/KEY— ..................................... 96
Terminals and Reference Value for INTELLIGENT
KEY UNIT .............................................................109
Terminals and Reference Value for Steering Lock
unit ........................................................................ 111
Terminals and Reference Value for BCM .............. 111
Terminals and Reference Value for IPDM E/R ......112
Diagnosis Procedure .............................................113
WORK FLOW ....................................................113
CONSULT-II Functions .........................................114
CONSULT-II Inspection Procedure .......................114
BASIC OPERATION ..........................................114
CONSULT-II Application Items ..............................115
WORK SUPPORT .............................................115
SELF-DIAGNOSTIC RESULTS .........................115
DATA MONITOR ................................................115
ACTIVE TEST ....................................................116
List of Operation Related Parts .............................117
Trouble Diagnosis Symptom Chart .......................118
ALL FUNCTIONS OF THE INTELLIGENT KEY
ARE NOT OPERATING .....................................118
REMOTE CONTROL ENTRY FUNCTION MAL-
FUNCTION ........................................................118
DOOR LOCK FUNCTION MALFUNCTION .......119
ENGINE START FUNCTION MALFUNCTION ..120
WARNING CHIME FUNCTION MALFUNCTION .120
Check CAN Communication System Inspection ...123
Check Intelligent Key Unit Power Supply and
Ground Circuit .......................................................124
Check Key Switch (Intelligent Key Unit Input) .......124
Check Key Switch (BCM Input) .............................126
Check Ignition Knob Switch ..................................127
Check Door Switch ...............................................128
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) ............................................................128
CHECK BACK DOOR SWITCH .........................129
Check Unlock Sensor ...........................................131
Check Door Request Switch .................................132
Check Intelligent Key Warning Buzzer ..................134
Check Outside Key Antenna .................................135
Check Inside Key Antenna ....................................138
Check Steering Lock Unit ......................................139
Check Stop Lamp Switch ......................................141
Check Detention Switch ........................................142
Check Select Unlock Relay ...................................144
Check Hazard Function ........................................145
Check Horn Function ............................................145
Check Headlamp Function ....................................145
Check IPDM E/R Operation ..................................145
Removal and Installation of Intelligent Key Unit ....146
REMOVAL ..........................................................146
INSTALLATION ..................................................146
Intelligent Key Inspection ......................................147
INTELLIGENT KEY DISASSEMBLY AND

BL-24
POWER DOOR LOCK SYSTEM
Revision: 2004 November 2004 FX35/FX45
Then key cylinder switch operation signal (lock) is supplied

to BCM terminal 22

through power window main switch terminal 14.
When the door is unlocked with key cylinder switch, ground is supplied

to power window main switch terminal 6

through key cylinder switch terminal 6 and 5

through grounds M35, M45 and M85.
Then key cylinder switch operation signal (unlock) is supplied

to BCM terminal 22

through power window main switch terminal 14.
BCM is connected to power window main switch and front power window switch (passenger side) as serial
link.
When the front door switch (driver side) is ON (door is OPEN), ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1

through front door switch (driver side) case ground.
When the front door switch (passenger side) is ON (door is OPEN), ground is supplied

to BCM terminal 12

through front door switch (passenger side) terminal 1

through front door switch (passenger side) case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied

to BCM terminal 63

through front door switch LH terminal 1

through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied

to BCM terminal 13

through front door switch RH terminal 1

through rear door switch RH case ground.
When the back door switch is ON (door is OPEN), ground is supplied

to BCM terminal 58

through back door closure motor (door switch) terminal 7 and 8

through grounds B15 and B45.
OUTLINE
Functions Available by Operating the Door Lock and Unlock Switches on Driver's Door and
Passenger's Door

Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors and
fuel lid lock actuator are locked.

Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors
and fuel lid lock actuator are unlocked.
Functions Available by Operating the Key Cylinder Switch on Driver's

Interlocked with the locking operation of door key cylinder, door lock actuators of all doors and fuel lid lock
actuator are locked.
Select Unlock Operation

When door key cylinder is unlocked, door lock actuator driver side and fuel lid lock actuator are unlocked.

When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door
lock actuators on all doors are unlocked.
Select unlock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK
SUPPORT”. Refer to BL-40, "
Work Support" .
Select unlock operation mode can be changed also on the display.
Refer toAV- 5 8 , "
SETTING SCREEN" . (without navigation system)

POWER DOOR LOCK SYSTEM
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Revision: 2004 November 2004 FX35/FX45
Trouble Diagnosis Chart by SymptomAIS004M0
Always check the “Work Flow” before troubleshooting. Refer to BL-37, "Work Flow" .
*1 : Lock operation
*2 : Unlock operation
*3 : Driver side
*4 : Except driver sideSymptom Diagnoses service procedureReference
page
Key reminder door system does not operate properly.1.Check key reminder door mode.*
*: Key reminder door mode can be changed.
First check key reminder door mode.BL-40
2. Preliminary CheckBL-38
3. Check key switch.BL-46
4. Check door switch. BL-42
5. Replace BCM.BCS-15
Power door lock does not operate with door lock and unlock switch.1. Preliminary checkBL-382. Check door lock and unlock switch.BL-48
3. Replace BCM.BCS-15
Power door lock does not operate with door key cylinder operation.
(Power door lock operate properly with door lock and unlock switch.)1. Check front door key cylinder switch.BL-53*1
BL-54*2
2. Replace power window main switch. –
Specific door lock actuator does not operate.1. Check door lock actuator.BL-50
*3
BL-51*4
2. Replace BCM.BCS-15
All door lock actuator (except passenger side and fuel lid) does not
operate.*
*: Only model with intelligent key system.1. Check select unlock relay circuit.BL-55
Select unlock does not operate.
(All other power door lock system is “OK”.)1. Check select unlock mode.*
*: Select unlock mode can be changed.
First check select unlock mode.BL-40
2. Replace BCM.BCS-15
Fuel lid opener actuator does not operate.
(All door lock actuators operates properly.)1.Check fuel lid opener actuator.BL-52

BL-52
POWER DOOR LOCK SYSTEM
Revision: 2004 November 2004 FX35/FX45
2. CHECK DOOR LOCK ACTUATOR SIGNAL
Check voltage between BCM connector M4 terminals 50, 51 and
ground.
OK or NG
OK >> Replace front door lock assembly (passenger side) or rear door lock actuator LH/RH.
NG >> Replace BCM.
Check Fuel Lid Opener Actuator AIS004M6
1. CHECK FUEL LID OPENER ACTUATOR HARNESS
1. Turn ignition switch OFF.
2. Disconnect BCM and fuel lid lock actuator connector.
3. Check continuity between BCM connector M4 terminals 44, 50
and fuel lid lock actuator connector B70 terminals 1, 2.
4. Check continuity between BCM connector M4 terminals 44, 50
and ground.
OK or NG
OK >> Replace fuel lid actuator.
NG >> Repair or replace harness.
Con-
nectorTerminal
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M450 (PU)
GroundDoor lock/unlock switch
is turned to LOCK.0 → Battery voltage
51 (W/B)Door lock/unlock switch
is turned to UNLOCK.0 → Battery voltage
PIIA6385E
44 (Y) – 2 (L) : Continuity should exist.
50 (PU) – 1 (PU) : Continuity should exist.
44 (Y) – Ground : Continuity should not exist.
50 (PU) – Ground : Continuity should not exist.
PIIA6386E

BRC-8
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
Revision: 2004 November 2004 FX35/FX45
SYSTEM DESCRIPTIONPFP:00000
System DiagramAFS001SB
VDC FunctionAFS001SC

In addition to the TCS/ABS function, the driver steering amount and brake operation amount are detected
from steering angle sensor and pressure sensor, and the vehicle's driving status (amount of under steer-
ing / over steering) is determined from information from G-sensor, wheel sensor, etc., and this information
is used to improve vehicle stability by controlling the braking and engine power to all four wheels.

SLIP indicator lamp flashes to inform the driver of VDC operation.

During VDC operation, body and brake pedal lightly vibrate and mechanical noises may be heard. This is
normal.

ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when vehicle is sub-
ject to strong shaking or large vibration, such as when vehicle is on a turn table, a ship or a steep slope
such as bank while engine is running. In this case, restart engine on a normal road, and if ABS warning
lamp, VDC OFF indicator lamp, and SLIP indicator lamp turn off, there is no problem.
TCS FunctionAFS001SD

The wheel spin of the drive wheels is detected by ABS actuator and electric unit (control unit) from the
wheel speed signals from four wheels, so if wheel spin occurs, drive wheel right and left brake fluid pres-
sure control and engine fuel cut are performed while throttle value is restricted to reduce the engine
torque and decrease the amount of wheel spin. In addition, the degree throttle is opened is controlled to
achieve the optimum engine torque.

Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.

TCS may be activated any time vehicle suddenly accelerates, suddenly down/upshifts, or is driven on a
road with a varying surface friction coefficient.

During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
ABS FunctionAFS001SE

The anti-lock brake system is a function that detects wheel revolution while braking, and it improves han-
dling stability during sudden braking by electrically preventing 4 wheel lock. Maneuverability is also
improved for avoiding obstacles.

If the electrical system breaks down, then the fail-safe function starts, the ABS becomes inoperative, and
ABS warning lamp turns on.

Electrical system diagnosis by CONSULT-II is available.

During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
SFIA1160E

BRC-30
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
Note 1: After completing repairs of shorted sensor circuit, when turn ignition switch ON, ABS warning lamp
turned on. Check that ABS warning lamp turned off while driving vehicle at approximately 30 km/h (19 MPH)
or more for approximately 1 minute according to self-diagnosis procedure. In addition, if wheel sensor 2 is dis-
played for wheels, check wheel sensor circuit and also check ABS actuator and electric unit (control unit)
power voltage.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for
CAN communication line first.
Note 3: “ACTUATOR RLY” on the CONSULT-II self-diagnostic results indicates the malfunction of actuator
relay or circuit. Actuator relay is imbedded in ABS actuator and electric unit (control unit).
DATA MONITOR
Operation Procedure
1. After turning OFF ignition switch, connect CONSULT-II and CONVERTER to data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to GI-40, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAN COMM CIRCUIT
[U1000]

CAN communication line is open or shorted.

ABS actuator and electric unit (control unit) internal malfunc-
tion

Battery voltage for EMC is suddenly interrupted for approxi-
mately 0.5 seconds or more.BRC-53, "
Inspection 14:
CAN Communication
System" (Note 2)
BR FLUID LEVEL LOW
[C1155]Brake fluid level drops or circuit between ABS actuator and elec-
tric unit (control unit) and brake fluid level switch is open or
shorted.BRC-51, "
Inspection 11:
Brake Fluid Level Switch
System"
VARIANT CODING
[C1170]V coding is not functioning.ABS actuator and elec-
tric unit (control unit) and
circuit
G - SENSOR (AWD model)
[C1113]Decel G sensor is malfunctioning, or signal line of Decel G sen-
sor is open or shorted.BRC-44, "
Inspection 6:
Yaw Rate/Side G-Sensor
(2WD model), Yaw Rate/
Side/Decel G-sensor
(AWD models) System"
ENGINE SIGNAL 1
[C1130]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.–
ENGINE SIGNAL 2
[C1131]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine ETC system is malfunctioning.–
ENGINE SIGNAL 3
[C1132]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine CAN system is malfunctioning.–
ENGINE SIGNAL 4
[C1133]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine torque down system is malfunc-
tioning.–
ENGINE SIGNAL 6
[C1136]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine control system is malfunctioning.–
ACTUATOR RLY
[C1140] (Note 3)

Actuator solenoid valve relay is ON, even if control unit sends
off signal.

Actuator solenoid valve relay is OFF, even if control unit sends
on signal.BRC-47, "
Inspection 8:
Actuator Motor System"
DECEL G SEN SET (AWD model)
[C1160]Neutral position correction of Decel G -sensor is not finished.BRC-52, "
Inspection 13:
When “DECEL G SEN
SET” Appears on Self-
Diagnosis Results Dis-
play (AWD Model)"
Self-diagnostic item Malfunction detecting condition Check system