FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Except For California




P0605 ECM

Description






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


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A

1.Turn ignition switch ON.
2.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Go to .
NO- GO TO 3.

3. PERFORM DTC CONFIRMATION 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.
Is 1st trip DTC detected?
YES- Go to .
NO- GO TO 4.

4. PERFORM DTC CONFIRMATION 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.
Is 1st trip DTC detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. INSPECTION START

1.Turn ignition switch ON.
2.Erase 1st trip DTC. Except For California or Except For California.
3.Perform DTC CONFIRMATION PROCEDURE. .
Is the 1st trip DTC P0605 displayed again?
YES- GO TO 2.
NO- INSPECTION END

2. REPLACE ECM

1.Replace ECM.
2.Perform Except For California.
- INSPECTION END