Nissan X-Trail 32. Manual — part 684
C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DLN-147
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
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C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC Description
INFOID:0000000011003999
DTC DETECTION LOGIC
POSSIBLE CAUSE
ABS malfunction
• Vehicle speed signal error
FAIL-SAFE
4WD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then 4WD
control stops, and the vehicle becomes front-wheel drive.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1.
Drive at 30 km/h (19 MPH) or more for approximately 1 minute.
2.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “C1203” detected?
YES
>> Proceed to diagnosis procedure. Refer to
DLN-147, "Diagnosis Procedure"
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000011004000
1.
PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT
Perform self-diagnosis for “ABS”.
Is any DTC detected?
YES
>> Check the DTC. Refer to
.
NO
>> GO TO 2.
2.
CHECK TERMINALS AND HARNESS CONNECTORS
Check 4WD control unit pin terminals for damage or loose connection with harness connector.
Is inspection result normal?
YES
>> After turning the ignition switch OFF, perform DTC confirmation procedure again. If DTC “C1203”
is detected, Replace 4WD control unit. Refer to
DLN-179, "Removal and Installation"
.
NO
>> Repair or replace error-detected parts.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
C1203
ABS SYSTEM
(ABS system)
Malfunction related to wheel sensor has been detected by
ABS actuator and electric unit (control unit).
DLN-148
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
C1204 4WD SOLENOID
C1204 4WD SOLENOID
DTC Description
INFOID:0000000011004001
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Internal malfunction of electronic controlled coupling
• Malfunction of 4WD solenoid power supply circuit (open or short)
• Malfunction of 4WD solenoid command current
FAIL-SAFE
4WD control changes to front-wheel drive immediately, then 4WD control stops, and the vehicle becomes
front-wheel drive.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “C1204” detected?
YES
>> Proceed to diagnosis procedure. Refer to
DLN-148, "Diagnosis Procedure"
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000011004002
1.
CHECK 4WD SOLENOID POWER SUPPLY (1)
1.
Turn the ignition switch OFF.
2.
Disconnect 4WD control unit harness connector.
3.
Check the voltage between 4WD control unit harness connector and ground.
4.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
5.
Check the voltage between 4WD control unit harness connector and ground.
Is the inspection result normal?
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
C1204
4WD SOLENOID
(4WD solenoid)
Malfunction related to 4WD solenoid has been detected.
4WD control unit
—
Voltage
Connector
Terminal
B5
9
Ground
Battery voltage
4WD control unit
—
Voltage
Connector
Terminal
B5
9
Ground
Battery voltage
C1204 4WD SOLENOID
DLN-149
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
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YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK 4WD SOLENOID POWER SUPPLY (2)
1.
Turn the ignition switch OFF.
2.
Check the 10A fuse (#6).
3.
Disconnect fuse block (J/B) harness connector.
4.
Check the continuity between 4WD control unit harness connector and fuse block (J/B) harness connec-
tor.
5.
Check the continuity between 4WD control unit harness connector and the ground.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit. Refer to
NO
>> Repair or replace error-detected parts.
3.
CHECK 4WD SOLENOID GROUND
Check the continuity between 4WD control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK 4WD SOLENOID CIRCUIT (1)
Check the resistance between 4WD control unit harness connector.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 5.
5.
CHECK 4WD SOLENOID CIRCUIT (2)
1.
Remove 4WD solenoid harness connector.
2.
Check the continuity between 4WD control unit harness connector and 4WD solenoid harness connector.
4WD control unit
Fuse block (J/B)
Continuity
Connector
Terminal
Connector
Terminal
B5
9
M2
15B
Existed
4WD control unit
—
Continuity
Connector
Terminal
B5
9
Ground
Not existed
4WD control unit
—
Continuity
Connector
Terminal
B5
10
Ground
Existed
11
4WD control unit
Resistance (Approx.)
Connector
Terminal
B5
1
2
2.5
Ω
4WD control unit
4WD solenoid
Continuity
Connector
Terminal
Connector
Terminal
B5
1
C1
2
Existed
2
1
DLN-150
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
C1204 4WD SOLENOID
3.
Check the continuity between 4WD control unit harness connector and the ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace error-detected parts.
6.
CHECK 4WD SOLENOID
Check 4WD solenoid. Refer to
DLN-150, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> 4WD solenoid is malfunctioning. Replace electric controlled coupling. Refer to
.
7.
CHECK TERMINALS AND HARNESS CONNECTORS
• Check 4WD control unit pin terminals for damage or loose connection with harness connector.
• Check 4WD solenoid pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> Replace 4WD control unit. Refer to
DLN-179, "Removal and Installation"
NO
>> Repair or replace error-detected parts.
Component Inspection
INFOID:0000000011004003
1.
CHECK 4WD SOLENOID
1.
Turn the ignition switch OFF.
2.
Disconnect 4WD solenoid harness connector.
3.
Check the resistance between 4WD solenoid harness connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> 4WD solenoid is malfunctioning. Replace electric controlled coupling. Refer to
.
4WD control unit
—
Continuity
Connector
Terminal
B5
1
Ground
Not existed
2
4WD solenoid
Resistance (Approx.)
Terminal
1
2
2.5
Ω
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