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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 28 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2009 Chevrolet Tahoe Base, 4.8 C
Diagnostic Code Index
2009 Chevrolet Tahoe Base, 4.8 CSECTION Diagnostic Code Index
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1325 | Device Power Circuit Voltage |
| DTC B1424 | Device Voltage Low - Theft Deterrent Module |
| DTC B1516 | Battery Current Sensor Performance |
| DTC B1517 | Battery Voltage |
| DTC B1527 | High Parasitic Load Detected |
| DTC C0895 | Device Voltage |
| DTC C0899 | Device Voltage Low |
| DTC C0900 | Device Voltage High |
| DTC P0562 | System Voltage Low - ECM |
| DTC P0563 | System Voltage High - ECM |
| DTC P0615 | Starter Relay Control Circuit |
| DTC P0621 | Generator L-Terminal Circuit |
| DTC P0622 | Generator F-Terminal Circuit |
| DTC P1668 | Generator L-Terminal Control Circuit |
RENDER: 1.0x
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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.