Display Unit

U1243 DISPLAY UNIT





DTC Logic









Diagnosis Procedure
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Display Unit Base Audio Without Navigation.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair malfunctioning parts.
2.CHECK CONTINUITY COMMUNICATION CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector and AV control unit connector.
3. Check continuity between display unit harness connector and AV control unit harness connector.





4. Check continuity between display unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK COMMUNICATION SIGNAL
1. Connect display unit connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Replace AV control unit. Exploded View Base Audio Without Navigation.
4.CHECK COMMUNICATION SIGNAL
Check signal between display unit harness connector and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace display unit. Exploded View Base Audio Without Navigation.