DTC Diagnosis Procedure
- CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect IPDM E/R harness connector E15.
- Check the continuity between IPDM E/R harness connector and ECM harness connector.
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E15
60
F92
99
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between ECM and IPDM E/R
- Loose or poor connection for each connector and harness
Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
- Check the continuity between IPDM E/R sensor harness connector and ECM harness connector.
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E15
55
F92
111
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- Check the continuity between IPDM E/R sensor harness connector and ECM harness connector.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between ECM and IPDM E/R
- Loose or poor connection for each connector and harness
Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK FUSE
- Disconnect 20 A fuse (No. 64) from IPDM E/R.
- Check if 20 A fuse is blown.
Is the inspection result normal?
YES
GO TO 6.
NO
Replace 20 A fuse.
- CHECK INTERMITTENT INCIDENT
Refer to Inspection .
Is the inspection result normal?
YES
Replace IPDM E/R. Refer to IPDM E/R : Removal & Installation .
NO
Repair or replace harness or connectors.