Main computer location

Good morning.

Check the connector behind the dash cluster to be sure the pins are clean and tight and have no damage.

If they are okay, good chance the cluster is bad. The engine control module has no connection to them as it controls fuel controls for the engine.

Roy

Removal:

1. Disconnect both cables from battery, negative cable first.

Note: On some models you will need to perform the LED reset procedure (LED's Flashing) after disconnecting the battery. See: Heating and Air Conditioning > Testing and Inspection

Power Distribution Center Retaining Screws
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2. Remove 2 screws holding Power Distribution Center (PDC) to bracket.

Battery Heat Shield
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3. Remove heat shield from battery.

Battery Clamp
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4. Remove nut and clamp holding battery to battery tray.
5. Remove battery from vehicle.

PDC Rear Bracket
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6. Rotate PDC toward center of vehicle to remove from rear bracket.
7. Pull PDC rearward to remove from front bracket. Lay PDC aside to allow access to Powertrain Control Module (PCM).

PCM 40-way Connectors
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8. Squeeze tabs on 40-way connector. Pull connector rearward to remove from PCM. Remove both way connectors.

PCM Removal/Installation
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9. Remove three screws holding PCM to fender.
10. Remove PCM from vehicle.