Diagnosis Procedure
- CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL
- Turn ignition switch ON.
- Check voltage between combination meter harness connector and ground.
Terminals
Voltage
(Approx.)
(+)
(-)
Combination meter
Ground
Connector
Terminal
M344
50
5 V
Is the inspection result normal?
YES
INSPECTION END
NO
GO TO 2.
- CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect combination meter connector and A/C auto amp. connector.
- Check continuity between combination meter harness connector and A/C auto amp. harness connector.
Combination meter
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M344
50
M342
6
Existed
- Check continuity between combination meter harness connector and ground.
Combination meter
Ground
Continuity
Connector
Terminal
M344
50
Not existed
Is the inspection result normal?
YES
INSPECTION END
NO
Repair harness or connector.