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 MANUALSGMC2010SAVANA G2500, VAN CARGO EXTENDED, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1628 (HYBRID CONTROLS - 3.6L (HP5) - DTC P16F9 TO DTC P2797)DTC P1AEC-P1AEFCIRCUIT/SYSTEM VERIFICATION
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6
Circuit/System Verification
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6SECTION Circuit/System Verification
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect for DTCs P0ABB, P0ABC, P0ABD, loss of communication with the BECM U-code DTCs, or any other concern that would indicate high voltage to the PIM was interrupted while high current was present.
- If the specified DTCs are set, or high voltage interruption is suspected, diagnose them first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Clear the DTC information.
- Ignition OFF for 1 minute.
- Ignition ON.
- Retest for DTCs P1AEC, P1AED, P1AEE and P1AEF.
- If the DTC resets, program the PIM with the latest software version and recheck for DTCs. If the DTC resets after programming or if the PIM already contains the latest software version, replace the PIM.
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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.