Infiniti FX35, FX50 (S51). Manual - part 23
ADP-84
< DTC/CIRCUIT DIAGNOSIS >
DETENTION SWITCH
DETENTION SWITCH
Description
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Detention switch is installed on A/T shift selector. It is turned OFF when the selector lever is in P position. The
driver seat control unit judges that the selector lever is in P position if continuity does not exist in this circuit.
Component Function Check
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1.
CHECK FUNCTION
1.
Turn ignition switch ON.
2.
Select “DETENT SW” signal in “Data monitor” mode with CONSULT-III.
3.
Check detention switch signal under the following conditions.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Perform diagnosis procedure. Refer to
Diagnosis Procedure
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1.
CHECK DTC WITH “BCM”
Check “Self Diagnostic Result” for BCM with CONSULT-III.
Is the either DTC B2601, B2602, B2603, B2604 or B2605 detected?
YES
>> Check the DTC. Refer to
NO
>> GO TO 2.
2.
CHECK DETENTION SWITCH INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect A/T shift selector harness connector.
3.
Turn ignition switch ON.
4.
Check voltage between A/T shift selector harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK DETENTION SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit.
3.
Check continuity between driver seat control unit harness connector and A/T shift selector harness con-
nector.
4.
Check continuity between driver seat control unit harness connector and ground.
Monitor item
Condition
Status
DETENT SW
Selector lever
P position
OFF
Other than
above
ON
(+)
(-)
Voltage (V)
(Approx.)
A/T shift selector
Connector
Terminal
M137
11
Ground
Battery voltage
Driver seat control unit
A/T shift selector
Continuity
Connector
Terminal
Connector
Terminal
B451
21
M137
11
Existed