Engine Controls For California

DTC P0605 ECM

Component Description






The ECM consists of a microcomputer and connectors for signal input and output and for power supply. The ECM controls the engine.


On Board Diagnosis Logic

This self-diagnosis has one or two trip detection logic.






FAIL-SAFE MODE

ECM enters fail-safe mode when malfunction A is detected.







DTC Confirmation Procedure

Perform PROCEDURE FOR MALFUNCTION A first. If the 1st trip DTC cannot be confirmed, perform

PROCEDURE FOR MALFUNCTION B. If there is no malfunction on PROCEDURE FOR MALFUNCTION
B, perform PROCEDURE FOR MALFUNCTION C.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

PROCEDURE FOR MALFUNCTION A

1.Turn ignition switch ON.
2.Check 1st trip DTC.
3.If 1st trip DTC is detected, go to .

PROCEDURE FOR MALFUNCTION B

1.Turn ignition switch ON and wait at least 1 second.
2.Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3.Check 1st trip DTC.
4.If 1st trip DTC is detected, go to .

PROCEDURE FOR MALFUNCTION C

1.Turn ignition switch ON and wait at least 1 second.
2.Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3.Repeat step 2 for 32 times.
4.Check 1st trip DTC.
5.If 1st trip DTC is detected, go to .


Diagnosis Procedure


1. INSPECTION START

1.Erase DTC.
2.Perform DTC Confirmation Procedure.
See .
Is the 1st trip DTC P0605 displayed again?
YES- GO TO 2.
NO-INSPECTION END

2. REPLACE ECM

1.Replace ECM.
2.Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs.
ECM Re-Communicating Function.
3.Perform For California.
4.Perform For California.
5.Perform For California.
6.Perform For California.
-INSPECTION END