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 1552 (LIGHTING SYSTEM)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 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1395 | B1395 03: Device Voltage Reference Output 1 Circuit Voltage Below Threshold B1395 07: Device Voltage Reference Output 1 Circuit Voltage Above Threshold |
| DTC B1480 | B1480 00: Battery Rundown Protection Circuit |
| DTC B2545 | B2545 00: Backup Lamps Circuit |
| DTC B2575 | B2575 00: Headlamp Low Beam Control Circuit |
| DTC B257A | B257A 00: Headlamp Switch Input Signals 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 B2625 | B2625 00: Passenger Compartment Dimming Request Signal Circuit Voltage Below Threshold |
| DTC B2645 | B2645 03: Ambient Light Sensor Circuit Below Threshold B2645 07: Ambient Light Sensor Circuit Above Threshold |
| DTC B2652 | B2652 00: Passenger Compartment Dimming 3 |
| DTC B3445 | B3445 00: Stop Lamp Circuit |
| DTC B3600 | B3600 03: Passenger Compartment Dimming Request Signal Circuit Voltage Below Threshold |
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.