Power and Ground Distribution: Testing and Inspection

POWER SUPPLY AND GROUND CIRCUIT


Diagnosis Procedure

Regarding Wiring Diagram information, [1][2]Electrical Diagrams.
1. CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.






Is the fuse blown?
YES - Replace the blown fuse or fusible link after repairing the affected circuit.
NO - GO TO 2
2. CHECK BATTERY POWER SUPPLY CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect IPDM E/R.
3. Check voltage between IPDM E/R harness connectors and ground.






Is the measurement value normal?
YES - GO TO 3
NO - Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.





2. Check continuity between IPDM E/R harness connectors and ground.






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