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 MANUALSCHEVROLET2011TAHOE BASE, 5.3 0, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 815 (TRANSFER CASE - NVG 246-NP8)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL OUTPUT CONTROLS
2011 Chevrolet Tahoe Base, 5.3 0, 4WD
Scan Tool Output Controls
2011 Chevrolet Tahoe Base, 5.3 0, 4WDSECTION Scan Tool Output Controls
WARNING: This page is about a different car, 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.
Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
| Refer to the scan tool manual for complete scan tool operating instructions. | ||
| 2WD High Indicator Light | - | This function allows the technician to command the 2WD high indicator light, within the transfer case shift control switch, on or off. |
| 4WD High Indicator Light | - | This function allows the technician to command the 4WD high indicator light, within the transfer case shift control switch, on or off. |
| 4WD Low Indicator Light | - | This function allows the technician to command the 4WD low indicator light, within the transfer case shift control switch, on or off. |
| ATC Motor A Control | - | This function allows the technician to energize the motor, causing it to shift the transfer case through all five modes. Motor control A moves in the opposite direction as motor control B. |
| ATC Motor B Control | - | This function allows the technician to energize the motor, causing it to shift the transfer case through all five modes. Motor control B moves in the opposite direction as motor control A. |
| Auto 4WD Indicator Light | - | This function allows the technician to command the auto 4WD indicator light, within the transfer case shift control switch, on or off. |
| Engage Front Axle | - | This function allows the technician to engage and disengage the front axle actuator. When the front axle actuator is engaged, the front axle becomes a live axle, causing the front propshaft to turn. |
| Neutral Indicator Light | - | This function allows the technician to command the neutral indicator light, within the transfer case shift control switch, on or off. |
| Transfer Case Lock | - | This function allows the technician to turn the transfer case lock on and off. With the transfer case lock on, the transfer case cannot be shifted. |
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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.