DTC Logic

DTC DETECTION LOGIC

NOTE

:
When IPDM E/R DTC is indicated with DTC P0657, IPDM E/R DTC must be checked first.

Diagnosis Procedure

1

.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connection E38. Refer to Ground Inspection in GI-44, "Circuit Inspection".

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace ground connection.

2.CHECK ECM RELAY CIRCUIT-I

Check the voltage between ECM harness connector and ground.

Is the inspection result normal? YES >> GO TO 6.

NO >> GO TO 3.

3.CHECK ECM RELAY CIRCUIT-II

1. Disconnect ECM harness connector F57.

2. Disconnect IPDM E/R harness connector E14.

3. Check the continuity between ECM harness connector and IPDM E/R harness connector.

4. Also check harness for short to ground and short to power.

Is the inspection result normal? YES >> GO TO 5.

NO >> GO TO 4.

4.DETECT MALFUNCTIONING PART

Check the following.

• Harness or connectors E8, F1 • Harness for open or short between ECM and IPDM E/R

>> Repair open circuit or short to ground or short to power in harness or connectors.

5.CHECK 20A FUSE

1. Disconnect 20A fuse (No. 43) from IPDM E/R.

2. Check 20A fuse.

Is the inspection result normal? YES >> GO TO 6.

NO >> Replace 20A fuse.

6.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

>> INSPECTION END