Test No. 15: Power Window Master Switch Circuit
- Check if power window master switch DTC B1211/11 is present. See MULTIPLEX CONTROL SYSTEMS - IS300 article. If power window master switch is okay, perform next circuit inspection in SYMPTOM INDEX table. If power window master switch is not okay, check power window master switch. See POWER WINDOWS - IS300 article. Replace switch as necessary. Retest system operation. If switch is okay, go to next step.
- Check circuits for faults between power window master switch and body ECU. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, see SYMPTOM INDEX (DOOR LOCK CONTROL SYSTEM) table and perform appropriate test.