Nissan X-Trail 32. Manual — part 659
C1209 MODE SW
DLN-47
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
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C1209 MODE SW
DTC Description
INFOID:0000000010991989
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Malfunction of 4WD mode switch
• Malfunction of 4WD mode switch circuit
• Internal malfunction of 4WD control unit
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.
Start the engine.
CAUTION:
Stop the vehicle.
2.
Operate 4WD mode switch to each position.
3.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “C1209” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010991990
1.
CHECK 4WD MODE SWITCH
Check 4WD mode switch. Refer to
DLN-49, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace 4WD mode switch. Refer to
DLN-77, "Removal and Installation"
.
2.
CHECK 4WD MODE SWITCH SIGNAL CIRCUIT
1.
Disconnect 4WD control unit harness connector.
2.
Check the continuity between 4WD control unit harness connector and 4WD mode switch harness con-
nector.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
C1209
MODE SW
(Mode switch)
More than two switch inputs are simultaneously detected
due to short circuit of 4WD mode switch.
DLN-48
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
C1209 MODE SW
3.
Check the continuity between 4WD control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK 4WD CONTROL SWITCH GROUND CIRCUIT
Check the continuity between 4WD mode switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK 4WD CONTROL UNIT OUTPUT SIGNAL
1.
Connect 4WD control unit harness connector.
2.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
3.
Check the voltage between 4WD mode switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
CHECK TERMINALS AND HARNESS CONNECTORS
4WD control unit
4WD mode switch
Continuity
Connector
Terminal
Connector
Terminal
B5
5
M8
3
Not existed
6
Existed
8
Not existed
12
3
Existed
6
Not existed
8
Not existed
14
3
Not existed
6
Not existed
8
Existed
4WD control unit
—
Continuity
Connector
Terminal
B5
5
Ground
Not existed
12
14
4WD mode switch
—
Continuity
Connector
Terminal
M8
2
Ground
Existed
4WD mode switch
—
Voltage
Connector
Terminal
M8
3
Ground
Battery voltage
6
8
C1209 MODE SW
DLN-49
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
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• Check 4WD control unit pin terminals for damage or loose connection with harness connector.
• Check 4WD mode switch pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> Replace 4WD control unit. Refer to
DLN-76, "Removal and Installation"
NO
>> Repair or replace damaged parts.
Component Inspection
INFOID:0000000010991991
1.
CHECK 4WD MODE SWITCH
1.
Turn the ignition switch OFF.
2.
Remove 4WD mode switch.
3.
Check the continuity between 4WD mode switch connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace 4WD mode switch. Refer to
DLN-77, "Removal and Installation"
.
4WD mode switch
Condition
Continuity
Terminal
3
2
4WD mode switch: 2WD
Existed
4WD mode switch: AUTO
Not existed
4WD mode switch: LOCK
(State of hold of LOCK position)
6
2
4WD mode switch: 2WD
Not existed
4WD mode switch: AUTO
Existed
4WD mode switch: LOCK
(State of hold of LOCK position)
8
2
4WD mode switch: 2WD
Not existed
4WD mode switch: AUTO
4WD mode switch: LOCK
(State of hold of LOCK position)
Existed
DLN-50
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
C1210 ECM
C1210 ECM
DTC Description
INFOID:0000000010991992
DTC DETECTION LOGIC
POSSIBLE CAUSE
Malfunction of engine control system
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 the vehicle for a while.
2.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “C1210” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010991993
1.
PERFORM ECM SELF-DIAGNOSIS
With CONSULT
Perform self-diagnosis for “ENGINE”.
Is any DTC detected?
YES
>> Check the DTC. Refer to
(MR20DD),
(QR25DE).
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 “C1210”
is detected, Replace 4WD control unit. Refer to
DLN-76, "Removal and Installation"
NO
>> Repair or replace error-detected parts.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
C1210
ENGINE SIGNAL 1
(Engine signal 1)
Malfunction related to engine signal has been detected.
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