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SYMPTOM PROCEDURES SMART WIRING SYSTEM (SWS) USING SWS MONITOR 54C-158 POSSIBLE CAUSES <RH DRIVE • Malfunction of the power window main switch • Malfunction of the power window sub switch (front: LH), power window sub switch (rear: RH) • Damaged harness wires and connectors DIAGNOSIS PROCEDURE Step 1. ECU check by using the SWS monitor. Check that the power supply and earth lines to the • Turn the ignition switch to the ON position. ECUS TO BE CHECKED • P/W MODULE OK: "OK" is displayed on the "P/W Q: Is the check result normal? YES : Go to Step 2. NO : Refer to Inspection Procedure A-5 Step 2. Check the power window sub switch. Check that each power window works by means of Q: Is the check result normal? YES : Go to Step 3. NO : Refer to inspection procedure D-3 "Relevant Step 3. Confirm communication data by using the Check the SWS communication signal from the <Selected item> DOOR CNT. COM. • Insert a probe between a power window sub switch of a door of which power window does not • Turn the ignition switch to the ON position. • Power window lock switch: OFF OK: Normal condition is displayed. Q: Is the check result normal? YES : Go to Step 4. NO : Replace the power window main switch. Item No. Item name Normal Item CB P/W LOCK SW OFF |