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.
Diagnostic Fault Information
2020 GMC Acadia SLSECTION Diagnostic Fault Information
WARNING: This page is about a different car, the 2021 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Audio Output 1 Signal Circuits (Left Front Door) | B1025 02 | B1025 04 | B1025 01 | - |
| Audio Output 2 Signal Circuits (Right Front Door) | B1035 02 | B1035 04 | B1035 01 | - |
| Audio Output 3 Signal Circuits (Subwoofer) | B1045 02 | B1045 04 | B1045 01 | - |
| Audio Output 7 Signal Circuits (Left Rear Door) | B1085 02 | B1085 04 | B1085 01 | - |
| Audio Output 8 Signal Circuits (Right Rear Door) | B1095 02 | B1095 04 | B1095 01 | - |
| Audio Output 9 Signal Circuits (Center I/P) | B1105 02 | B1105 04 | B1105 01 | - |
| Audio Output 10 Signal Circuits (Mono D-Pillar - if equipped) | B1115 02 | B1115 04 | B1115 01 | - |
RENDER: 1.0x
NO RELATED
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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.