Cruise Control - Inoperative/Malfunctioning
DIAGNOSTIC AIDSIMPORTANT: Perform the following in order to avoid misdiagnosis:
^ Inspect for proper operation of the brake lamps.
^ Inspect throttle linkage for mechanical binding which could cause the system to malfunction.
^ Inspect cruise control adjustment, should have minimum slack.
^ Inspect for stored diagnostic trouble codes (DTCs) in the PCM.
^ 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 cut-off). Refer to Powertrain Control Module (PCM) Description in Computers and Controls Systems for additional information.
TEST
Steps 1-8:
Steps 9-22:
Steps 23-34:
Steps 35-43:
