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 1411 (DTC INDEX)TRANSFER CASE (NVG 246-NP8) DTCS
2006 Chevrolet Suburban K2500, 6.0 U
Transfer Case (NVG 246-NP8) DTCS
2006 Chevrolet Suburban K2500, 6.0 USECTION Transfer Case (NVG 246-NP8) DTCS
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
TRANSFER CASE (NVG 246-NP8) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B0790 | Neutral Indicator Circuit Voltage |
| DTC B2725 | Range/Mode Switch Circuit Voltage |
| DTC C0300 | Open, Short To Ground, Short To Voltage Or Faulty Sensor |
| DTC C0305 | Open, Short To Ground, Short To Voltage Or Faulty Sensor |
| DTC C0306 | Open, Short To Voltage, Or Short To Ground In Motor Control A Or Motor Control B Circuits, Or An Open, Or Short To Ground Inside Motor |
| DTC C0321 | Open Lock Solenoid Coil, Open Motor Lock Control Circuit, Or An Open Motor Lock Feed Circuit |
| DTC C0327 | Out Of Range Reading From The Encoder Signal, A Short To Voltage On 5 Volt Reference Circuit |
| DTC C0359 | Short To Ground, Short To Voltage, Or An Open In 4WD LO Circuit |
| DTC C0374 | Unable To Correct Sensed Wheel Slip |
| DTC C0379 | Front Axle Control Circuit Short To Ground, Short To Voltage Or An Open Circuit |
| DTC C0550 | EEPROM/ROM Checksum |
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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.