Cruise Control - Inoperative/Malfunctioning
DIAGNOSTIC AIDSIMPORTANT: Perform the following in order to avoid misdiagnosis.
^ Inspect for proper operation of brake lamps
^ Inspect throttle linkage for mechanical binding which could cause the system to malfunction
^ Inspect cruise control cable adjustment, should have minimum slack
^ When testing vehicles equipped with steering wheel controls, the steering wheel must be rotated to each stop position while testing the cruise control switch signal circuits. This will assure the integrity of the SRI coil
^ EMI on the speed sensor signal circuit may cause erratic cruise control operation
CONDITIONS FOR ENABLING CRUISE CONTROL
^ When vehicle speed is more than 40 km/h (25 mph)
^ When PARK, REVERSE, NEUTRAL, or 1st gear is not indicated
^ When an over/undercharged battery condition does not exist
^ With normal engine RPM
^ Without high engine RPM fuel cutoff
TEST
Steps 1-8:
Steps 9-22:
Steps 23-35:
Steps 36-47:
