1.CHECK POWER SUPPLY CIRCUIT Check IPDM E/R power supply circuit. Refer to Diagnosis Procedure. Is the circuit normal? YES>>GO TO 2. NO>>Repair or replace the malfunctioning part.
2.CHECK FUSE

1. Turn ignition switch OFF.
2. Check 10 A fuse (No. 48, located in IPDM E/R).

Is the inspection normal?
YES>>Replace IPDM E/R. Refer to Removal and Installation.
NO>>
Check the following.

- Harness for open or short between IPDM E/R and battery
- Fuse