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

Installation Procedure

Remove the replacement PCM from the packaging.
Verify the service number in order to ensure the service number is the same number as the faulty PCM.

Fig 1: View Of PCM Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

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.