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 MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS - SIDE MARKER LAMP - LEFT FRONT (X88 OR Z88) - YAW AND LATERAL ACCELEROMETER SENSORSTRANSFER CASE SHIFT CONTROL MODULE X3 (NQH)
2009 Chevrolet Tahoe Base, 4.8 C
Transfer Case Shift Control Module X3 (NQH)
2009 Chevrolet Tahoe Base, 4.8 CSECTION Transfer Case Shift Control Module X3 (NQH)
Transfer Case Shift Control Module X3 (NQH)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| A | 3 OG | 1553 | Motor Control B |
| B | 3 TN | 1552 | Motor Control A |
| C | 3 RD/BK | 1342 | Battery Positive Voltage |
| D | 3 BK | 550 | Ground |
Connector Part Information
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Terminal Part Information
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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.