Diagnosis Procedure

REAR WINDOW DEFOGGER RELAY


Diagnosis Procedure

1.CHECK FUSES
Check if any of the following fuses in the IPDM E/R are blown.





Is the inspection result normal?
YES - GO TO 2
NO - If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT





1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector and ground.





Is the inspection result normal?
YES - Replace IPDM E/R. Refer to Service and Repair.
NO - GO TO 3
3. CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to Intermittent Incident
Is the inspection result normal?
YES - Check the following.
- Battery power supply circuit.
- IPDM E/R.
NO - Repair or replace the malfunctioning parts.