Cruise Control - Inoperative/Malfunctioning

CRUISE CONTROL INOPERATIVE/MALFUNCTIONING

DIAGNOSTIC AIDS

IMPORTANT: 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 for stored diagnostic trouble codes (DTCs) in the PCM. Refer to Diagnostic System Check - Computers and Control Systems in Computers and Control Systems-3.4 L. Initial Inspection and Diagnostic Overview
- 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 1 st gear is not indicated by the park neutral position switch.
- When an over/undercharged battery condition does not exist.
- With normal engine rpm.
- Without high engine rpm e.g. fuel cut off.

TEST

Steps 1-5:

Steps 6-14:

Steps 15-20:

Steps 21-27:

Steps 28-33:

Steps 34-40:

Steps 41-43: