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 MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSCELLULAR SYSTEM, ENTERTAINMENT SYSTEM & NAVIGATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSPEAKER MALFUNCTIONDIAGNOSTIC FAULT INFORMATION
2009 Chevrolet Tahoe Base, 4.8 C
Diagnostic Fault Information
2009 Chevrolet Tahoe Base, 4.8 CSECTION Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Left Front Speaker Signal Circuits (Front Door and Tweeter) | B1025 02* | B1025 04* | B1025 01* | - |
| Right Front Speaker Signal Circuits (Front Door and Tweeter) | B1035 02* | B1035 04* | B1035 01* | - |
| Left Rear Speaker Signal Circuits (Rear Door) | B1045 02* | B1045 04* | B1045 01* | - |
| Right Rear Speaker Signal Circuits (Rear Door) | B1055 02* | B1055 04* | B1055 01* | - |
| Front Center Speaker Signal Circuits (Center IP) | B1065 02* | B1065 04* | B1065 01* | - |
| Subwoofer Low Level Audio Signal Circuits (Center Console) | B1075 02* | B1075 04* | B1075 01* | - |
| Left Midrange Speaker Signal Circuits (LR D-Pillar) | B1085 02* | B1085 04* | B1085 01* | - |
| Right Midrange Speaker Signal Circuits (RR D-Pillar) | B1095 02* | B1055 04* | B1095 01* | - |
| * Noticeable audio distortion possible. | ||||
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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.