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 MANUALSGMC2009SIERRA 2500 HD, 2D PICKUP, 6.0 K, 4WD, PART TIMEREPAIR AND DIAGNOSISTRANSMISSIONTRANSFER CASETRANSFER CASE - MP 1625/1626-NQFREPAIR INSTRUCTIONS - ON VEHICLETRANSFER CASE SHIFT CONTROL MODULE REPLACEMENT

2009 GMC Sierra 2500 HD, 2D Pickup, 6.0 K, 4WD, Part Time

Transfer Case Shift Control Module Replacement

2009 GMC Sierra 2500 HD, 2D Pickup, 6.0 K, 4WD, Part TimeSECTION Transfer Case Shift Control Module Replacement

Fig 1: View Of Transfer Case Shift Control Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transfer Case Shift Control Module Procedure Disconnect the electrical connector. Remove the module from the module bracket by releasing the retaining tabs. If installing a new module, perform the transfer case shift sontrol module programing and setup. Refer to Control Module References .

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.