1996 GMC Forward Control 6.5 Y, StandardFACTORY OEM SERVICE PROCEDURE

Cruise Control Will Not Resume, Accelerate Or Tap-Up

  1. Disconnect cruise control module connector. Disconnect 48-pin connector C200 (located at base of steering column). Connect self-powered test light between C200 connector pin A15 (Gray/Black wire) and cruise control module connector terminal "C" (Gray/Black wire). If test light glows, go to next step. If test light does not glow, repair open in Gray/Black wire.
  2. Turn cruise control on. Connect self-powered test light between C200 connector pin A13 (Brown wire) and pin A15 (Gray/Black wire). Press and hold RESUME/ACCEL switch. If test light glows, replace cruise control module. If test light does not glow, check for open in Gray/Black pigtail wire in steering column. If circuit is okay, replace multifunction lever. See STEERING COLUMN SWITCHES article.
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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.

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