B1221

DTC B1221 Power Window Switch Circuit on Driver Door

CIRCUIT DESCRIPTION
These DTC notify how switch works as follows:
If DTC is not output when operating switch, it means failure of switch contact. If DTC is output when not operating switch, it means stick of switch. When something wrong is found by this diagnosis, inspect each switch. Then, replace the switch if there is a problem, or check the wireharness if there is no problem.





DETECTING CONDITION

HINT: Refer to Power Window Switch for switch inspection procedures.