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

  1. Press brake pedal and observe stoplight operation. If stoplights operate properly, go to next step. If stoplights do not operate properly, repair stoplights as necessary. See EXTERIOR LIGHTS article.
  2. Turn ignition off. Disconnect speed control servo/actuator connector C177. Using an ohmmeter, measure resistance between speed control servo/actuator connector C177 terminals No. 4 (Green wire) and No. 10 (Blue wire). See Figure . If resistance is 20 ohms or less, replace speed control servo/actuator and retest system operation. If resistance is greater than 20 ohms and vehicle is equipped with M/T, go to next step. If resistance is greater than 20 ohms and vehicle is equipped with A/T, repair open in Green wire between speed control servo/actuator and brake pedal position switch. Retest system operation.
  3. Ensure ignition is off. Disconnect Clutch Pedal Position (CPP) switch connector C292. Measure resistance between CPP switch terminals No. 3 and 4 (component side). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace CPP switch and retest system operation.
  4. Disconnect BPP switch connector C245. Measure resistance of Green wire between CPP switch connector C292 terminal No. 3 and BPP switch connector C245. If resistance is 5 ohms or less, repair open in White or Green wire between speed control servo/actuator and CPP switch. Retest system operation. If resistance is greater than 5 ohms, repair open in Green wire between CPP switch and BPP switch. Retest system operation.
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