Cruise Control System

TROUBLE CODE 23 AND 24 - Cruise Control Module Built-in Relay, CPU RAM

DIAGNOSIS:
- Welding of built-in relay of cruise control module.
- Failure of built-in CPU RAM of cruise control module.

Wiring Diagram:

TROUBLE SYMPTOM:
- Cruise control is cancelled and memorized cruise speed is also cancelled.
- Once cruise control is cancelled, cruise control cannot be set until the ignition switch and cruise main switch turns OFF, and then turns ON again.

NOTE: Perform real-time diagnosis ("FA0" mode) and check vehicle speed signal with select monitor.

When input signals are in good condition, failure is in cruise control module.

(Check power supply and ground condition of cruise control module.)