B1221

DTC B1221 Power Window Switch Circuit On Driver Door

DESCRIPTION
This DTC notifies how the switch works as follows:
If the DTC is not output when operating the switch, this means there is a failure of the switch contact. If the DTC is output when not operating the switch, this means the switch is stuck. When a malfunction is found using this diagnosis, inspect each switch. Then, replace the switch if there is a problem, or check the wire harness if there is no problem.

DTC Detection Condition:

HINT: Refer to switch inspection.

Terminals Of Control Module/Pinouts (Part 1):

Terminals Of Control Module/Pinouts (Part 2):

Terminals Of Control Module/Pinouts (Part 3):

Terminals Of Control Module/Pinouts (Part 4):

Door Control Switch




1. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY




a. Check the continuity of the power window regulator master switch.

If the result is not as specified, replace the switch assembly.




2. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY




a. Check the continuity of the power window regulator switch.

If the result is not as specified, replace the switch assembly.