Nissan Qashqai J11. Manual — part 801
DLN-120
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
P1804 CONTROL MODULE
P1804 CONTROL MODULE
DTC Logic
INFOID:0000000010288288
DTC DETECTION LOGIC
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.
PERFORM DTC CONFIRMATION
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “P1804” detected?
YES
>> Proceed to
DLN-120, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010288289
1.
PERFORM SELF-DIAGNOSIS AGAIN
With CONSULT
Perform “DTC CONFIRMATION PROCEDURE” (self-diagnosis) again. Refer to
Is DTC “P1804” detected?
YES
>> Replace AWD control module. Refer to
NO
>> Check AWD control module pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
P1804
CONTROL UNIT 3
Malfunction is detected in the memory
(EEOROM) system of AWD control
module.
Internal malfunction of AWD control
module.
P181F INCOMPLETE CALIBRATION
DLN-121
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
C
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DLN
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P181F INCOMPLETE CALIBRATION
DTC Logic
INFOID:0000000010288290
DTC DETECTION LOGIC
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.
PERFORM DTC CONFIRMATION
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC “P181F” detected?
YES
>> Proceed to
DLN-121, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010288291
1.
PERFORM WRITING UNIT CHARACTERISTICS
1.
Erase self-diagnostic result for “ALL MODE AWD/4WD”.
2.
Perform writing unit characteristics. Refer to
3.
Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is any DTC except “P181F” detected?
YES
>> Perform trouble diagnosis for detected DTC. Refer to
NO
>> GO TO 2.
2.
PERFORM SELF-DIAGNOSIS AGAIN
With CONSULT
Perform “DTC CONFIRMATION PROCEDURE” (self-diagnosis) again. Refer to
Is DTC “P181F” detected?
YES
>> Replace AWD control module. Refer to
NO
>> Check AWD control module pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
P181F
INCOMP CALIBRATION
When incomplete writing unit character-
istics of rear final drive is detected.
Writing unit characteristics is incom-
plete.
DLN-122
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000010288292
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 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.
DTC Logic
INFOID:0000000010288293
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform AWD control unit self-diagnosis.
Is DTC “U1000” detected?
YES
>> Proceed to diagnosis procedure. Refer to
DLN-122, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010288294
1.
PERFORM SELF-DIAGNOSIS
With CONSULT
Perform AWD control unit self-diagnosis.
Is DTC “U1000” detected?
YES
>> CAN specification chart. Refer to
LAN-24, "Trouble Diagnosis Flow Chart"
NO
>> INSPECTION END
DTC
Items
(CONSULT screen terms)
Diagnostic item is detected when...
Possible cause
U1000
CAN COMM CIRCUIT
When AWD control unit is not transmit-
ting or receiving CAN communication
signal for 2 seconds or more.
• CAN communication error
• Malfunction of AWD control unit
U1010 CONTROL UNIT (CAN)
DLN-123
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY30A]
C
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A
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DLN
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U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000010288295
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 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.
DTC Logic
INFOID:0000000010288296
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform AWD control unit self-diagnosis.
Is DTC “U1010” detected?
YES
>> Proceed to diagnosis procedure. Refer to
DLN-123, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010288297
1.
CHECK AWD CONTROL UNIT
Check AWD control unit harness connector for disconnection and deformation.
Is the inspection result normal?
YES
>> Replace AWD control unit. Refer to
NO
>> Repair or replace damaged parts.
DTC
Items
(CONSULT screen terms)
Diagnostic item is detected when...
Possible cause
U1010
CONTROL UNIT (CAN)
When detecting error during the initial di-
agnosis of CAN controller of AWDAWD
control unit.
Malfunction of AWD control unit
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