2008 INFINITI FX35 Service Manual

handbrake engine overheat transmission oil rear entertainment tyre pressure brakes

Page 3809 of 3924

INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSISTF-23
< SERVICE INFORMATION >
CEF
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× : Standard : Not applicable
ACTIVE TEST MODE
Description
Use this mode to determine and identify the details of a malf

TROUBLE DIAGNOSISTF-23
< SERVICE INFORMATION >
CEF
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× : Standard : Not applicable
ACTIVE TEST MODE
Description
Use this mode to determine and identify the details of a malfunction based on self-diagnostic results or data
monitor. AWD control unit gives drive signal to actuat or with receiving command from CONSULT-III to check
operation of actuator.
Test Item
CAUTION:
Do not continuously energize for a long time.
Monitored item (Unit) Monitor Menu
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS
FR RH SENSOR [km/h] or [mph] ××Wheel speed calculated by front wheel sensor
RH signal is displayed.
FR LH SENSOR [km/h] or [mph] ××Wheel speed calculated by front wheel sensor LH
signal is displayed.
RR RH SENSOR [km/h] or [mph] ××Wheel speed calculated by rear wheel sensor RH
signal is displayed.
RR LH SENSOR [km/h] or [mph] ××Wheel speed calculated by rear wheel sensor LH
signal is displayed.
BATTERY VOLT [V] Power supply voltage for AWD control unit
THRTL POS SEN [%] Throttle opening status is displayed.
ETS SOLENOID [A] Monitored value of current at AWD solenoid
STOP LAMP SW [ON/OFF] Stop lamp switch signal status via CAN commu-
nication line is displayed.
ENG SPEED SIG [RUN/STOP] Eng ine status is displayed.
ETS ACTUATOR [ON/OFF] Operating condition of AWD actuator relay (inte-
grated in AWD control unit) is displayed.
4WD WARN LAMP [ON/OFF] Control status of AWD warning lamp is displayed.
4WD MODE SW [AUTO] AWD lock switch is not equipped, but displayed.
4WD MODE MON [AUTO] Control status of AWD is displayed.
DIS-TIRE MONI [mm] Improper size tire installed condition is displayed.
P BRAKE SW [ON/OFF] Parking switch signal status via CAN communi-
cation line is displayed.
Test item Condition Description
ETS S/V
(Detects AWD solenoid valve) Vehicle stopped
Engine running
No DTC detected Change command current value to AWD solenoid, and then change driving
mode. (Monitor value is normal if it is within approximately ±10% of com-
mand value.)
Qu: Increase current value in increments of 0.20A
Qd: Decrease current value in increments of 0.20A
UP: Increase current value in increments of 0.02A
DOWN: Decrease current value in increments of 0.02A
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INFINITI FX35 2008 Service Manual
TF-24
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYSTEM
TROUBLE DIAGNOSIS FOR SYSTEM
DTC C1201 CONTROLLER FAILUREINFOID:0000000001327444
DIAGNOSTIC PROCEDURE
Check the following if “CONTROLLER

TF-24
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYSTEM
TROUBLE DIAGNOSIS FOR SYSTEM
DTC C1201 CONTROLLER FAILUREINFOID:0000000001327444
DIAGNOSTIC PROCEDURE
Check the following if “CONTROLLER FAILURE [C1201]” is displayed in self-diagnostic results of CON-SULT-III.
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode fo r “ALL MODE AWD/4WD” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Perform the self-diagnosis again.
Is the
“CONTROLLER FAILURE [C1201]” displayed?
YES >> Replace AWD control unit. Refer to TF-35.
NO >> INSPECTION END
DTC C1203 ABS SYSTEMINFOID:0000000001327445
DIAGNOSTIC PROCEDURE
Check the following if “ABS SYSTEM [C1203]” is disp layed in self-diagnostic results of CONSULT-III.
1.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to BRC-26, "
Self-Diagnosis".
Is any malfunction detec ted by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.
2.CHECK DTC AFTER DRIVING
1. Turn ignition switch “OFF”.
2. Start engine and drive vehicle at 30 km/h (19 MPH) for at least 1 minute.
3. Make sure that ABS warning lamp turns OFF.
4. Perform erase self-diagnostic results. Refer to TF-21, "
CONSULT-III Function (ALL MODE AWD/4WD)".
5. Stop vehicle and turn ignition switch “OFF”.
6. Turn ignition switch “ON”.
7. Perform self-diagnosis.
Is the
“ABS SYSTEM [C1203]” displayed?
YES >> GO TO 3.
NO >> INSPECTION END
3.CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e".
OK or NG
OK >> GO TO 4.
NG >> Check AWD control unit pin terminals for dam age or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4.CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> INSPECTION END
NG >> Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to BRC-26,
"Self-Diagnosis".
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INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSIS FOR SYSTEMTF-25
< SERVICE INFORMATION >
CEF
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TF
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DTC C1204 4WD SOLENOIDINFOID:0000000001327446
CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE
Data are refere

Page 3812 of 3924

INFINITI FX35 2008 Service Manual
TF-26
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYSTEM
3. Check resistance between AWD control unit harness connectorterminals 1 and 2.
OK or NG
OK >> GO TO 6.
NG >> GO TO 4.
4.CHECK AWD SO

Page 3813 of 3924

INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSIS FOR SYSTEMTF-27
< SERVICE INFORMATION >
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1. Turn ignition switch “OFF”.
2. Disconnect transfer assembly harness connector.
3. Check resistance bet

Page 3814 of 3924

INFINITI FX35 2008 Service Manual
TF-28
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYSTEM
OK or NG
OK >>INSPECTION END
NG >> Replace AWD control unit.
DTC C1210 ENGINE SIGNAL 1INFOID:0000000001327448
DIAGNOSTIC PROCEDURE
Check t

TF-28
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYSTEM
OK or NG
OK >>INSPECTION END
NG >> Replace AWD control unit.
DTC C1210 ENGINE SIGNAL 1INFOID:0000000001327448
DIAGNOSTIC PROCEDURE
Check the following if “ECM SIGNAL 1 [C1210]” is di splayed in self-diagnostic results of CONSULT-III.
1.CHECK DTC WITH ECM
Perform self-diagnosis with ECM. Refer to EC-55, "
Emission-Related Diagnostic Information" (VQ engine
models) or EC-633, "
Emission-related Diagnostic Information" (VK engine models).
Is any malfunction detec ted by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.
2.CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e".
OK or NG
OK >> GO TO 3.
NG >> Check AWD control unit pin terminals for dam age or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
3.CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> INSPECTION END
NG >> Perform self-diagnosis with ECM again. Refer to EC-55, "
Emission-Related Diagnostic Informa-
tion" (VQ engine models) or EC-633, "Emission-related Diagnostic Information" (VK engine mod-
els).
DTC U1000 CAN COMM CIRCUITINFOID:0000000001327449
DIAGNOSTIC PROCEDURE
Check the following if “CAN COMM CIRCUIT [U1000]” is detected in self-diagnostic results of CONSULT-III.
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-III
1. Turn ignition switch “ON” and start engine.
2. Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with in CONSULT-III.
3. Perform the self-diagnosis.
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Print out CONSULT-III screen and go to LAN-43, "CAN System Specification Chart".
NO >> INSPECTION END
Power Supply Circuit for AWD Control UnitINFOID:0000000001327443
CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE
1.CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
Monitored item [Unit] Condition Display value (Approx.)
BATTERY VOLT [V] Ignition switch: ON Battery voltage
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INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSIS FOR SYSTEMTF-29
< SERVICE INFORMATION >
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2. Disconnect AWD control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4.

Page 3816 of 3924

INFINITI FX35 2008 Service Manual
TF-30
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
TROUBLE DIAGNOSIS FOR SYMPTOMS
AWD Warning Lamp Does Not Turn ON When the Ignition Switch Is Turned to ON
INFOID:0000000001327450
DIAGNOST

TF-30
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
TROUBLE DIAGNOSIS FOR SYMPTOMS
AWD Warning Lamp Does Not Turn ON When the Ignition Switch Is Turned to ON
INFOID:0000000001327450
DIAGNOSTIC PROCEDURE
1.CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to TF-21, "
CONSULT-III Function (ALL MODE AWD/4WD)".
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to TF-28, "DTC U1000 CAN COMM
CIRCUIT".
NO >> GO TO 2.
2.CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e".
OK or NG
OK >> GO TO 3.
NG >> Check AWD control unit pin terminals for dam age or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
3.CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP.
With CONSULT-III
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-III.
3. Start the engine, and then make sure that “4WD W/L” display turns from “ON” to “OFF” after several sec-
onds.
OK or NG
OK >> GO TO 4.
NG >> Perform trouble diagnosis for combination meter. Refer to DI-15, "
Trouble Diagnosis".
4.SYMPTOM CHECK
Check again.
OK or NG
OK >> INSPECTION END
NG >> Replace unified meter control unit assembly. Refer to DI-23, "
Disassembly and Assembly of Com-
bination Meter".
AWD Warning Lamp Does Not Turn OFF Several Seconds after Engine Started
INFOID:0000000001327451
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TF-21, "
CONSULT-III Function (ALL MODE AWD/4WD)".
Is any malfunction detec ted by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.
2.CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
Monitor item Condition Display value
4WD W/L Ignition switch ON ON
Start engine (after several seconds) OFF
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