DTC B1221 Power Window Switch Circuit on Driver Door: Description
This DTC is output only if the power window master switch AUTO UP/DOWN operation is performed. If the DTC is not output, the following may be malfunctioning:
DTC B1221 TROUBLE DETECTION REFERENCE
| DTC No. | DTC Detecting Condition | Trouble Area |
|---|---|---|
| B1221 | Does not operate either of the power window master switch (except window lock switch) |
|
HINT:
For details of inspection, See PROBLEM SYMPTOMS TABLE .
If the problem reoccurs even after replacement, replace the main body ECU.