VCM Replacement/Programming

REMOVAL PROCEDURE

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

IMPORTANT: Disconnecting the VCM will not erase the CKP system variation learn as long as the ignition switch is in the OFF position.




1. Disconnect the negative battery cable.
2. Remove the VCM retainer clip.




3. Remove the VCM from the VCM bracket.




4. Remove the VCM electrical connectors and retainer clips

IMPORTANT: The remaining steps are only necessary for a VCM replacement:




5. Remove the access cover screws.
6. Remove the VCM access cover.

IMPORTANT: Since the module will be used in the replacement VCM, place the module in an area where it will not be damaged.




7. Gently pinch the retaining clip.




8. Remove the electronic spark control module by pulling upward.

INSTALLATION PROCEDURE

IMPORTANT: Ensure that the VCM being installed is the original VCM, or that the replacement VCM service number is identical to the original VCM service number.

Steps 1-4 are only necessary for a new VCM installation:

NOTE: Refer to PCM and ESD Notice in Service Precautions.




1. Align the notches of the electronic spark control module with the notches in the socket.

IMPORTANT: Press only on the ends of the electronic spark control module. Gently press on the electronic spark control module until it is firmly seated in the socket. Listen for the click.

2. Install the electronic spark control module in the socket.




3. Install the access cover on the VCM.

NOTE: Refer to Fastener Notice in Service Precautions.

4. Install the access cover screws.

Tighten
Tighten the access cover screws to 4.8 N.m (42 lb in).




5. Connect the VCM electrical connectors and retainer clips.




6. Insert the VCM into the VCM bracket. Ensure that the VCM is fully seated, so that the snap retainer is up into its normal position and is retaining the module.




7. Fasten the VCM retainer clip.
8. Connect the negative battery cable.