Test L-2: Dome Light Dimming Function Does Not Work Normally

Turn ignition switch to LOCK position and check operation of following functions:
- Ignition key reminder tone alarm.
- Light reminder tone alarm.
- Central door locking system.
- Ignition key hole illumination light.
- Hazard warning light.
- Anti-theft alarm system, if equipped.
If none of listed functions operate normally, check ETACS-ECU battery circuit. See O-1: ETACS-ECU POWER SUPPLY CHECK under CIRCUIT TESTS. If any of listed functions operate normally, go to next step.
Check input signals for:
- Ignition switch (IG1).
- Key reminder switch.
- Door switches.
- Driver's door lock actuator switch.
See appropriate tests in INPUT SIGNAL CHECK FUNCTION under SELF-DIAGNOSTIC SYSTEM. If input signal test shows a fault, check indicated circuit. See TEST N-2: IGNITION SWITCH IG1 CIRCUIT CHECK , TEST N-3: KEY REMINDER SWITCH CIRCUIT CHECK , TEST N-7: DOOR SWITCH CIRCUIT CHECK or TEST N-9: DOOR LOCK ACTUATOR SWITCH CIRCUIT CHECK . If input signal test is okay, replace ETACS-ECU and retest dome light dimming function.