Base Audio

POWER SUPPLY AND GROUND CIRCUIT:_:DISPLAY UNIT





Diagnosis Procedure
Regarding Wiring Diagram information, Electrical Diagrams.
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch to ACC.





2. Check voltage between display unit harness connector M93 and ground.





Does specified voltage exist?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect the display unit connector M93 and the AV control unit connector M44.
3. Check continuity between the display unit harness connector
M93 (A) and the AV control unit connector M44 (B).





4. Check continuity between the display unit harness connector M93 (A) and ground.





Are continuity results as specified?
YES - Check AV control unit power and ground supply. Base Audio.
NO - Repair harness or connector.
3.CHECK GROUND CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect display unit connector.
3. Check continuity between display unit harness connector and ground.





Does continuity exist?
YES - Inspection End.
NO - Repair harness or connector.