Fail-Safe Chart

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: FAIL-SAFE CHART

FAIL-SAFE CHART

1. CHECK POWER WINDOW FAIL-SAFE FUNCTION
HINT: If there is a malfunction in the power window system, some of the power window functions will be disabled.

Driver side power window:






Power windows except driver side power window:






2. CHECK SWITCH CONDITION WITH INTELLIGENT TESTER
HINT: DTC B1221 is output when switches of the power window master switch are on. When these switches are off, DTC B1221 is not output. Using this DTC, you can check whether these switches are normal or not.