B2221

Back Door Power Window
DTC B2221 Jam Protection Pulse Sensor Circuit On Back Door

DTC Detection Condition:

Wiring Diagram:

CIRCUIT DESCRIPTION
The back door ECU monitors the condition of the power window motor to detect the position of the door glass by using pulse signals output from the 2 pulse sensors in the power window motor.


FAIL-SAFE
- The AUTO UP/DOWN function is disabled.
- The MANUAL DOWN function via the transmitter is disabled.
- The MANUAL UP/DOWN function via the back door power window switch can be performed (the ignition switch ON).
- The MANUAL UP/DOWN function via the back door lock key cylinder can be performed (the ignition switch ON).

Step 1 - 2:

INSPECTION PROCEDURE