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.
2002 Pontiac Firebird Formula, AutomaticFACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Grounds
GROUNDS LOCATION
| Component | Location |
|---|---|
| G100 (3.8L VIN K) | On lower right side of engine, above A/C compressor. |
| G100 (5.7L VIN G) | On lower right side of engine, above starter solenoid. |
| G101 | In engine compartment, attached to front of left wheelhouse. |
| G102 | In engine compartment, attached to front of right wheelhouse. |
| G105 | Attached to top right side of radiator support. |
| G106 | Attached to top left side of radiator support. |
| G109 | Attached to left front frame rail, forward of brake pressure modulator valve bracket. |
| G110 (3.8L VIN K) | In front of engine, bolted to pulley, above A/C clutch connector. |
| G110 (5.7L VIN G) | Attached to rear of left cylinder head. |
| G111 (3.8L VIN K) | Attached to left engine mount. |
| G111 (5.7L VIN G) | Attached to lower left side of engine, behind generator. |
| G112 | Attached to rear of left cylinder head. |
| G200 | Near left "A" pillar, bolted to dash mounting stud, behind kick panel. |
| G201 | Near right "A" pillar, bolted to dash mounting stud, behind kick panel. See Figure. |
| G202 | Attached to floor pan under center console, rear of inflatable restraint sensing & diagnostic module. |
| G305 | Bolted to left rocker panel, at floor pan bar. |
| G310 | Bolted to roof, left of dome lamp. |
| G320 | Bolted to roof, left of dome lamp. |
| G400 | Bolted to rear compartment lid release actuator bracket, in rear compartment. |
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.