1998 Chevrolet Camaro V6-3.8L VIN KFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module (PCM) Replacement

PCM Mounting:

Factory service manual diagram





PCM REPLACEMENT / PROGRAMMING
Service of the PCM should normally consist of either replacement of the PCM or EEPROM programming. If the diagnostic procedures call for PCM Replacement, check the PCM first to see if it is the correct part. If the PCM is faulty, remove it and install the new service PCM.

The new service PCM will not be programmed. You must program the new PCM. DTC P0602 indicates the EEPROM is not programmed or has malfunctioned.

CAUTION:
- In order to prevent possible electrostatic discharge damage to the PCM, do not touch the connector pins or soldered components on the circuit board.
- In order to prevent internal PCM damage, leave the ignition OFF when installing or removing the PCM connectors and disconnecting or reconnecting the power to the PCM (battery cable, PCM pigtail, PCM fuse, jumper cables, etc.).

When replacing the production PCM with a service PCM (controller), it is important to transfer the broadcast code and production PCM number to the service PCM label. Do not record on PCM cover. This will allow positive identification of PCM parts throughout the service life of the vehicle.

REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the PCM from the mounting hardware.
3. Disconnect the harness connectors from the PCM.
4. Remove the PCM from the engine compartment.
5. If the PCM is being replaced, remove the Knock Sensor (KS) module for installation in the new PCM.

INSTALLATION PROCEDURE
1. If a new PCM is being installed, install the KS module from the original PCM.
2. Install the connectors to PCM.
3. Install the PCM into vehicle.
4. Connect the negative battery cable.
5. If a new PCM is being installed, program the PCM EEPROM.

EEPROM PROGRAMMING
1. Set-up - Ensure that the following conditions have been met:
- The battery is fully charged.
- The ignition is ON.
- The Vehicle Interface Module cable connection at the DLC is secure.

2. Program the PCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment users instructions.
3. If the PCM fails to program, proceed as follows:
- Ensure that all PCM connections are OK.
- Check the Techline equipment for the latest software version.
- Attempt to program the PCM. If the PCM still cannot be programmed properly, replace the PCM. You must program the replacement PCM.


FUNCTIONAL CHECK
1. Perform the On-Board Diagnostic System Check.
2. Start the engine and the engine run for one minute.
3. Use the scan tool in order to scan for the DTCs.
4. If DTC P0325 sets, the KS module is not fully seated, is missing, or is malfunctioning.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.