|
|
INPUT SIGNAL PROCEDURES SMART WIRING SYSTEM (SWS) USING SWS MONITOR 54C-478 YES : The trouble can be an intermittent malfunction (Refer to GROUP 00 − How to Cope with Intermittent Malfunction NO : Replace the ETACS-ECU. Inspection Procedure Q-6: The column switch (lighting, turn-signal lamp and headlamp washer CAUTION Whenever the ECU is replaced, ensure that the COMMENTS ON TROUBLE SYMPTOM Input signal from the column switch (lighting, • Lamp reminder function • Headlamp washer • Headlamp and tail lamp • Headlamp automatic-shutdown function • Front and rear fog lamp • Turn signal lamp • Headlamp washer POSSIBLE CAUSES • Malfunction of the column switch • Damaged harness wires and connectors DIAGNOSIS PROCEDURE Step 1. Check the column switch connector. Check that the wiper and washer switch connector, Q: Is the check result normal? YES : Go to Step 2. NO : Repair the defective connector. Step 2. Check the column switch (lighting switch Refer to GROUP 54A − Column switch Q: Is the check result normal? YES : Go to Step 3. NO : Replace the column switch. COLUMN-ECU DIMMER· TURN-SIGNAL LIGHTING HEADLAMP COLUMN SWITCH Lighting Switch Input Circuit |