Introduction To Auto-Cruise Control System Diagnosis

WARNING: This page is about a different variant/trim than selected.

The auto-cruise control system allows driving without stepping on the accelerator pedal by setting a random speed between 40 km/h (25 mph) and 200 km/h (124 mph). Problems in this system can be investigated by the following methods.

Auto-cruise control system diagnostic trouble codes

The auto-cruise control system consists of the engine control module (ECM) < M/T > or powertrain control module (PCM) < A/T >, control switches and sensors. The control switches and sensors monitor the state of the vehicle: The ECM < M/T > or PCM < A/T > controls the throttle valve opening angle in the throttle body in accordance with the input signals from the switches and sensors. If the ECM < M/T > or PCM < A/T > detects a problem on any of those components, the ECM < M/T > or PCM < A/T > estimates where the problem may be occurring, and will set a diagnostic trouble code. Diagnostic trouble codes cover the auto-cruise control switch, stoplight switch and ECM < M/T > or PCM < A/T >.