Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2005 GMC Jimmy Part Time, StandardFACTORY OEM SERVICE PROCEDURE

Removal Procedure

NOTE: In order to prevent internal damage to the PCM, the ignition must be OFF when disconnecting or reconnecting the PCM connector.

Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.

Fig 1: View Of PCM Retention Bar & Retainer

Courtesy of GENERAL MOTORS CORP.

Move the PCM retention bar and retainer away from the PCM.

Fig 2: View Of PCM

Courtesy of GENERAL MOTORS CORP.

Remove the PCM from the PCM mounting bracket.

Fig 3: View Of PCM Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Disconnect the PCM electrical connectors.

Chapter Navigation

Return to Chapter: Powertrain Control Module (PCM) Replacement

Factory Service Tools

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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.