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 C1500, 5.3 ZREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1426 (LIGHTING SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Chevrolet Suburban C1500, 5.3 Z
Diagnostic Code Index
2006 Chevrolet Suburban C1500, 5.3 ZSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 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 B1395 | B1395 03: Voltage Below Threshold B1395 07: Voltage Above Threshold |
| DTC B2530 | B2530 00: Front Fog Lamp Control Circuit |
| DTC B2545 | B2545 00: Backup Lamps Circuit |
| DTC B2575 | 2575 00: Headlamp Low Beam Control Circuit |
| DTC B257A | B257A 00: Headlamp Switch Input Signal Mismatch |
| DTC B2580 | B2580 00: Headlamp High Beam Control Circuit |
| DTC B2585 | B2585 00: Park Lamp Control Circuit |
| DTC B2600 | B2600 00: Daytime Running Lamp Control Circuit |
| DTC B2610 | B2610 00: Passenger Compartment Dimming 1 Circuit B2610 01: Passenger Compartment Dimming 1 Circuit Short to Battery B2610 02: Passenger Compartment Dimming 1 Circuit Short to Ground B2610 04: Passenger Compartment Dimming 1 Circuit Open |
| DTC B2615 | B2615 00: Passenger Compartment Dimming 2 Circuit B2615 01: Passenger Compartment Dimming 2 Circuit Short to Battery B2615 02: Passenger Compartment Dimming 2 Circuit Short to Ground B2615 04: Passenger Compartment Dimming 2 Circuit Open |
| DTC B2625 | B2625 00: Display Dimming Pulse Width Modulation (PWM) Output Circuit |
| DTC B2645 | B2645 03: Ambient Light Sensor Circuit Voltage Below Threshold B2645 07: Ambient Light Sensor Circuit Voltage Above Threshold |
| DTC B2652 | B2652 00: Passenger Compartment Dimming 3 |
| DTC B3445 | B3445 00: Stop Lamp Circuit |
| DTC B3600 | B3600 03: Voltage Below Threshold B3600 07: Voltage Above Threshold |
| DTC B3884 | B3884 00: Center High Mounted Stop Lamp (CHMSL) Circuit |
| DTC C0277, C0297, or C0890 | C0277 00: Brake Pedal Position Sensor Calibration Not Learned C0297 00: Brake Applied Output Circuit C0890 00: Device Voltage Reference Output 3 Circuit Voltage Out of Range |
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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.