B2221 LEXUS – Jam Protection Pulse Sensor Circuit On Back Door

B2221 LEXUS Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B2221 LEXUS Possible Causes

Faulty Power Window Regulator Motor Assembly Left (LH),Power Window Regulator Motor Assembly Left harness is open or shorted,Power Window Regulator Motor Assembly Left circuit poor electrical connection

B2221 LEXUS 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. If the pulse sensor in the back door power window motor malfunctions. Diagnostic Trouble Code (DTC) B2221 is output, the power window functions will be restricted.