Nissan Qashqai J11. Manual — part 993
STC-32
< DTC/CIRCUIT DIAGNOSIS >
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
DTC Logic
INFOID:0000000010452130
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.
DTC REPRODUCTION PROCEDURE
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform “EPS/DAST 3” self-diagnosis.
Is DTC “U1000” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010452131
LAN-28, "Trouble Diagnosis Flow Chart"
DTC
Display item
Malfunction detected condition
Possible cause
U1000
CAN COMM CIRCUIT
EPS control unit is not transmitting/re-
ceiving CAN communication signal for 2
seconds or more.
CAN communication error
U1010 CONTROL UNIT (CAN)
STC-33
< DTC/CIRCUIT DIAGNOSIS >
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U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000010470623
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.
DTC REPRODUCTION PROCEDURE
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform “EPS/DAST 3” self-diagnosis.
Is DTC “U1010” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010470624
1.
CHECK CONNECTOR
Check the EPS control unit pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> Replace steering column assembly. Refer to
STC-46, "Removal and Installation"
.
NO
>> Repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
U1010
CONTROL UNIT(CAN)
When detecting error during the initial di-
agnosis of CAN controller to EPS control
unit.
EPS control unit (steering column as-
sembly)
STC-34
< DTC/CIRCUIT DIAGNOSIS >
U1970 AROUND VIEW MONITOR SYSTEM
U1970 AROUND VIEW MONITOR SYSTEM
DTC Logic
INFOID:0000000010470625
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.
DTC REPRODUCTION PROCEDURE
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform “EPS/DAST 3” self-diagnosis.
Is DTC “U1970” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010470626
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect around view monitor control unit harness connector.
3.
Check the around view monitor control unit pin terminals for damage or loose connection with harness
connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check the harness connector pin terminal again. If a malfunction is found, repair or replace the
terminal.
2.
PERFORM AROUND VIEW MONITOR CONTROL UNIT SELF-DIAGNOSIS
With CONSULT
1.
Connect around view monitor control unit harness connector.
2.
Erase self-diagnosis results for “AVM”.
3.
Turn the ignition switch OFF and wait at least 10 seconds or more.
4.
Turn the ignition switch ON.
5.
Perform “AVM” self-diagnosis.
Is any DTC detected?
YES
>> Check the DTC. Refer to
AV-157, "WITHOUT DRIVER ASSISTANCE SYSTEM : DTC Index"
(without driver assistance system) or
AV-161, "WITH DRIVER ASSISTANCE SYSTEM : DTC
(with driver assistance system).
NO
>> GO TO 3.
3.
PERFORM SELF-DIAGNOSIS
With CONSULT
1.
Erase self-diagnosis results for “EPS/DAST 3”.
DTC
Display item
Malfunction detected condition
Possible cause
U1970
AVM
A CAN signal malfunction at the around view monitor
control unit continues for 2 seconds or more.
• Harness or connector (CAN
communication line)
• EPS control unit (steering
column assembly)
• Around view monitor control
unit
U1970 AROUND VIEW MONITOR SYSTEM
STC-35
< DTC/CIRCUIT DIAGNOSIS >
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2.
Turn the ignition switch OFF and wait at least 10 seconds or more.
3.
Turn the ignition switch ON.
4.
Perform self-diagnosis check of all control units.
Is DTC “U1000”, “U1970” or other DTC detected?
YES-1 >> “U1000”: Refer to
LAN-28, "Trouble Diagnosis Flow Chart"
.
YES-2 >> “U1970”: Replace around view monitor control unit. Refer to
AV-276, "Removal and Installation"
.
YES-3 >> Other DTC: Check the DTC.
NO
>> INSPECTION END
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