Nissan Murano Workshop Manual 2009 (49) PDF | Page 11

VEHICLE SPEED SIGNAL CIRCUIT
STC-11
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VEHICLE SPEED SIGNAL CIRCUIT
Description INFOID:0000000003305955
Combination meter sends vehicle speed signal to power steering control unit.
Diagnosis Procedure INFOID:0000000003305956
1.PERFORM COMBINATION METER SELF-DIAGNOSIS
With CONSULT-III
1. Turn the ignition switch ON.
2. Perform combination meter self-diagnosis. Refer to MWI-34, "
CONSULT-III Function (METER/M&A)".
Is any DTC detected?
YES >> Check the DTC.
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN COMBINATION METER AND POWER STEERING CONTROL UNIT
1. Turn the ignition switch OFF.
2. Disconnect combination meter harness connector.
3. Disconnect power steering control unit harness connector.
4. Check continuity between combination meter harness connector and power steering control unit harness
connector.
5. Check continuity between power steering control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK VEHICLE SPEED SIGNAL (1)
1. Turn the ignition switch OFF.
2. Connect combination meter harness connector.
3. Check combination meter input/output standard values. Refer to MWI-59, "
Reference Value".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace combination meter Refer to MWI-145, "
Exploded View".
4.CHECK VEHICLE SPEED SIGNAL (2)
1. Turn the ignition switch OFF.
2. Connect power steering control unit harness connector.
3. Check signal between power steering control unit harness connector and ground with oscilloscope.
Combination meter Power steering control unit
Continuity
Connector Terminal Connector Terminal
M3430M618Existed
Power steering control unit
?Continuity
Connector Terminal
M61 8 Ground Not existed
Revision: 2008 October 2009 Murano