Power Supply And Ground Circuit

POWER SUPPLY AND GROUND CIRCUIT:_:A/C AUTO AMP. A/C AUTO AMP.





Diagnosis Procedure
1.CHECK SYMPTOM
Check symptom (A or B).





Which symptom is detected?
A - GO TO 2.
B - GO TO 5.
2.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse (No. 3).

NOTE:
Locations.
Is the inspection result normal?
YES - GO TO 3.
NO - Replace the blown fuse after repairing the affected circuit if a fuse is blown.
3.CHECK A/C AUTO AMP. IGNITION POWER SUPPLY
1. Disconnect A/C auto amp. connector.
2. Turn ignition switch ON.
3. Check voltage between A/C auto amp. harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair harness or connector between A/C auto amp. and fuse.
4.CHECK A/C AUTO AMP. GROUND CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Check continuity between A/C auto amp. harness connector and ground.





Is the inspection result normal?
YES - Replace A/C auto amp. Automatic Air Conditioner.
NO - Repair harness or connector.
5.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse (No.7, located in fuse block (J/B)].

NOTE:
Fuse Block - Junction Box (J/B).
Is the inspection result normal?
YES - GO TO 6.
NO - Replace the blown fuse after repairing the affected circuit if a fuse is blown.
6.CHECK A/C AUTO AMP. BATTERY POWER SUPPLY
1. Disconnect A/C auto amp. connector.
2. Check voltage between A/C auto amp. harness connector and ground.





Is the inspection result normal?
YES - Replace A/C auto amp. Automatic Air Conditioner.
NO - Repair harness or connector between A/C auto amp. and fuse.