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Nissan Quest E52. Manual - part 1098
SEC-82
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2603 SHIFT POSITION
B2603 SHIFT POSITION
DTC Logic
INFOID:0000000009650743
DTC DETECTION LOGIC
NOTE:
• If DTC B2603 is displayed with DTC B2601, first perform the trouble diagnosis for DTC B2601. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE 1
1.
Shift the selector lever to the P position.
2.
Turn ignition switch ON and wait 1 second or more.
3.
Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE 2
1.
Shift the selector lever to any position other than P, and wait 1 second or more.
2.
Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009650744
1.
INSPECTION START
Perform inspection in accordance with procedure that confirms DTC.
Which procedure confirms DTC?
DTC confirmation procedure 1>>GO TO 2.
DTC confirmation procedure 2>>GO TO 6.
2.
CHECK DTC OF TCM
Check DTC in “Self Diagnostic Result” mode of “TCM” using CONSULT.
Is DTC detected?
YES
>> Perform the trouble diagnosis related to the detected DTC. Refer to
NO
>> GO TO 3.
3.
CHECK BCM INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between BCM harness connector and ground.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible causes
B2603
SHIFT POSI STATUS
BCM detects the following status when ignition
switch is in the ON position.
• P/N position signal from TCM: approx. 0 V
(Other than P/N position)
• CVT shift selector (detention switch) signal:
approx. 0 V (P position)
• Harness or connector
[CVT shift selector (detention switch)
circuit is open or shorted.]
• Harness or connectors
(TCM circuit is open or shorted.)
• CVT shift selector (detention switch)
• TCM
• BCM