DTC B2221 Jam Protection Pulse Sensor Circuit on Back Door: Description

The back door ECU monitors the condition of the power window motor and detects the position of the door glass by using pulse signals output from the 2 pulse sensors in the power window motor.

DTC DETECTION CONDITION CHART

DTC Code	DTC Detection Condition	Suspected Part
B2221	PLS1 pulse sensor circuit malfunction PLS2 pulse sensor circuit malfunction Pulse direction is opposite to motor rotating direction (Short circuit between PLS1 and PLS2) PLS1 and PLS2 pulse sensors circuit malfunction Fully closed position is misaligned	Back door Power window regulator motor Back door ECU Harness or connector