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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1122 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Chevrolet Suburban K2500, 6.0 U
Diagnostic Code Index
2006 Chevrolet Suburban K2500, 6.0 USECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1325 | B1325 03: Device Power Circuit Voltage Below Threshold B1325 07: Device Power Circuit Voltage Above Threshold B1325 4A: Device Power Circuit Checksum Error - IPC |
| DTC B1424 | B1424 00: Device Voltage Low - Theft Deterrent Module |
| DTC B1516 | B1516 08: Battery Current Sensor Performance Signal Invalid B1516 66: Battery Current Sensor Performance Wrong Mounting Position |
| DTC B1517 | B1517 03: Battery Voltage Below Threshold - BCM B1517 07: Battery Voltage Above Threshold - BCM B1517 5A: Battery Voltage Plausibility Failure - BCM |
| DTC B1527 | B1527 00: High Parasitic Load |
| DTC C0899 | C0899 00: Device Voltage Low - EBCM (JF3/JF7/JH6/JH7) C0899 03: Device Voltage Low - EBCM (JL4), PTO (M1F) |
| DTC C0900 | C0900 00: Device Voltage High - EBCM |
| DTC P0562 | P0562: System Voltage Low |
| DTC P0563 | P0563: System Voltage High |
| DTC P0615 | P0615: Starter Relay Control Circuit |
| DTC P0621 | P0621: Generator L-Terminal Circuit |
| DTC P0622 | P0622: Generator F-Terminal 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.