Description
ECM has the memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the Idle Air Volume Learning value memory, etc. even when the ignition switch is turned OFF.
DTC DETECTION LOGIC
DTC No. | Trouble diagnosis | DTC detecting condition | Possible cause |
P0603 |
ECM BACK UP/CIRCUIT (ECM power supply circuit) | ECM back-up RAM system does not function properly. |
|
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected?
YES >> Go to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.INSPECTION START
Is the 1st trip DTC P0603 displayed again?
YES >> GO TO 2.
NO >> INSPECTION END
2.REPLACE ECM
>> INSPECTION END
Door switch
Exploded View
1. Door switch 2. Door switch bolt
Removal and Installation
REMOVAL
1. Remove the door switch bolt (A).
2. Disconnect the harness connector and remove door switch (1).
INSTALLATION
Installation is in the reverse order of removal.
TRUNK LID OPENER SWITCH
Removal and I ...
Trunk lid opener system
TRUNK LID OPENER SYSTEM : System Diagram
TRUNK LID OPENER SYSTEM : System Description
TRUNK LID OPEN OPERATION
When the trunk release button of the keyfob is pressed, the trunk
release signal transmits from the keyfob to
the BCM via the remote keyless entry receiver.
When the BCM re ...