Cruise Control Inoperative/Malfunctioning

CRUISE CONTROL INOPERATIVE/MALFUNCTIONING

DIAGNOSTIC AIDS
In order to avoid misdiagnosis, inspect for the following:
- Ensure that the following cruise control switches are not stuck in the engaged position:
- On/Off switch
- Set/Coast switch
- Resume/Accel switch
- Proper operation of the brake lamps - Refer to Exterior Lighting Systems Description and Operation.

For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections.

CONDITIONS FOR ENABLING CRUISE CONTROL
- The vehicle speed is greater than 40 km/h (25 mph).
- The vehicle is not in PARK, REVERSE, NEUTRAL, or 1st gear.
- The system voltage is within 9-16 volts.
- The park brake is not applied.

TEST DESCRIPTION

Step 1 - Step 7:

Step 8 - Step 16:

The number below refers to the step number on the diagnostic table.
6. This step tests the ignition 1 voltage circuit for an open, for a short to ground, or for a high resistance.