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Cruise Control Diagnosis

  1. Check throttle linkage to servo for proper adjustment. If not okay, adjust. If adjustment is okay, check all electrical and vacuum connections for proper engagement. Check fuse.
  2. If fuse is not okay, repair as necessary. If the fuse is okay, perform SERVO TEST  . If servo tests out as not okay, repair or replace. If the servo is okay, perform ENGAGEMENT SWITCH TEST  .
  3. If the engagement switch is not okay, adjust, repair or replace as required. If the engagement switch tests okay, perform CRUISE RELEASE SWITCH TEST  as outlined in this article. If release switch is not okay, adjust, repair or replace as necessary.
  4. If release switch is okay, perform "SET/COAST" SWITCH TEST  as outlined in this article. If set/coast switch is not okay, repair or replace. If set/coast switch is okay, perform appropriate SPEED SENDER TEST as outlined in this article. Refer to the following menu. If speed sensor tests not okay, repair or replace. If okay, replace the control module.
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