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.
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HOMESERVICE MANUALSGMC2009SAVANA G2500, VAN CARGO EXTENDED, 6.6 6REPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEIGNITION SWITCH/STEERING LOCKWIRING SYSTEMS AND POWER MANAGEMENT - SERVICE, TROUBLESHOOTING & DIAGNOSISTESTING FOR SHORT TO GROUNDWITH A TEST LAMP
2009 GMC Savana G2500, Van Cargo Extended, 6.6 6
With a Test Lamp
2009 GMC Savana G2500, Van Cargo Extended, 6.6 6SECTION With a Test Lamp
- Remove the power feed (i.e. fuse, control module) from the suspect circuit.
- Disconnect the load.
- Connect one lead of the test lamp to battery positive voltage.
- Connect the other lead of the test lamp to one end of the circuit to be tested.
- If the test lamp illuminates, there is a short to ground in the circuit.
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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.