The service of the PCM should normally consist of either the replacement of the PCM and the re-programming of the EEPROM or a KS module change.

Whenever the diagnostic procedures call for the PCM to be replaced, check the PCM first in order to see if it is the correct part. If the part is correct, remove the KS module from the faulty PCM and install it in the new service PCM. The service PCM will not contain a KS module. Whenever a DTC P0325 sets, check the KS module for proper installation.

Refer to the latest Techline Procedure when reprogramming the PCM.

1. Disconnect the negative battery cable.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.




2. Remove the PCM retainer attaching bolts (2).



3. Remove the PCM electrical connector.



4. Slide the PCM and retainer from the PCM bracket



5. Remove the retainer from the PCM.




Notice: Clean the PCM housing of any debris that may cause damage to the PCM circuitry before removing the KS module cover.

6. Remove the KS module cover.




Notice: In order to prevent possible electrostatic discharge (ESD) damage to the PCM or KS module, do not touch the connector pins or soldered components on the circuit board. Do not remove the integrated circuit boards from the carrier.

7. Remove the KS module.

1. Remove the new PCM from the packaging.
2. Check the service number in order to make sure it is the same number as the defective PCM.
3. Remove the KS module cover.



4. Install the KS module in the KS module socket.



5. Install the KS module cover.

Tighten
Tighten the KS module cover screws to 2.8-3.2 N·m (25-28  lb. in.).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.




6. Slide the PCM into the PCM retainer



7. Install the PCM electrical connectors.



8. Slide the PCM retainer into the PCM bracket slots.



9. Install the PCM retainer attaching bolts.

Tighten
Tighten the PCM retainer attaching bolts to 8-12 N·m (6-9 lb. ft.)