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.
2008 Pontiac G5 L4-2.4LFACTORY OEM SERVICE PROCEDURE
Control Module: Locations
Powertrain Component Views
Left Side of the Engine Compartment
1 - Transmission Control Module (TCM) (MN5)
2 - Left Front Strut Tower
3 - Engine Control Module (ECM)
4 - Electronic Brake Control Module (EBCM) (JM4/JL4/JL9)
5 - Fuse Block - Underhood Bracket
Left Front of the Engine Compartment
1 - Windshield Washer Fluid Pump
2 - Windshield Wiper Motor Assembly
3 - Brake Fluid Level Switch
4 - Fuse Block - Underhood
5 - G109
6 - Transmission Control Module (TCM) (MN5)
7 - Engine Control Module (ECM)
8 - Electronic Brake Control Module (EBCM)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.