Self-Diagnostic Test: Cherokee

Turn ignition switch to ACCY position 3 times and leave in ACCY position to enter self-diagnostic mode. To stop self-diagnostic mode, return ignition switch to OFF position.

After entering self-diagnostic mode, the headlights, parking lights, and taillights will flash to verify theft alarm system operation. The horn should also sound twice.

While in self-diagnostic mode, it is recommended that illuminated entry module be removed. Otherwise its necessary to wait 30 seconds after opening or closing each door. Begin theft alarm system self-diagnosis as follows:

1. Close ALL doors. Enter self-diagnostic mode and remove illuminated entry module. Module is located on a bracket behind instrument panel. Open and close each door and hood. The horn should sound when door jamb (hood) switch closes and again when switch opens. Wait one second before closing and opening doors (hood).
2. Actuate power door locks and remote keyless entry (if equipped) in both the lock and unlock position. The horn should sound after each actuation. Rotate key in each door lock to the unlock position. The horn should sound when door jamb switch closes and again when switch opens. Wait one second before closing and opening doors.
3. Place ignition switch in RUN position. Horn should sound to indicate proper operation of ignition input and exit theft alarm system self-diagnostic mode.
4. If horn does not sound, it indicates a switch failure, an open/shorted circuit (lack of switch input), or a security alarm module failure. Check switch and wiring harness continuity. Service theft alarm system based on following self-diagnostics test results: