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Test C: Speed Control Does Not Disengage When Brakes Are Applied

NOTE: Ensure brake lights are operating properly before proceeding.
  1. Turn ignition switch to LOCK position. Disconnect Black 10-pin speed control servo/actuator harness connector C136. Speed control servo/actuator is located behind left front fenderwell. Using DVOM, measure voltage between speed control servo/actuator harness connector C136 terminals No. 4 (Light Green wire) and No. 10 (Black wire). See Figure . When brake pedal is depressed, 10 volts or more should exist. If voltage is as specified, replace speed control servo/actuator. If voltage is not as specified, go to next step.
  2. Check for open in Light Green wire between speed control servo/actuator harness connector C136 terminal No. 4 and fuse No. 35 in central junction box. See WIRING DIAGRAMS  . Repair as necessary.
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