P0605

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.

On Board Diagnosis Logic:

FAIL-SAFE MODE
ECM enters fail-safe mode when the malfunction A is detected.

FAIL-SAFE MODE:

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 perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

PROCEDURE FOR MALFUNCTION A
1. Turn ignition switch ON.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to P0605.

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 it ON.
3. Check 1st trip DTC.
4. If 1st trip DTC is detected, go to P0605.

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 it ON.
3. Repeat step 3 for 32 times.
4. Check 1st trip DTC.
5. If 1st trip DTC is detected, go to P0605.




Diagnosis Procedure
1.INSPECTION START
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC Confirmation Procedure.
See P0605.
4. Is the 1st trip DTC P0605 displayed again?
Yes or No
Yes - GO TO 2.
No INSPECTION END
2.REPLACE ECM
1. Replace ECM.
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to Programming and Relearning.
3. Perform Testing and Inspection.
4. Perform Testing and Inspection.
5. Perform Throttle Valve Closed Position Learning.
6. Perform Testing and Inspection.
INSPECTION END