DTC B2221: Jam Protection Pulse Sensor Circuit On Back Door: Fail-Safe

WARNING: This page is about a different car, the 2004 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

If the pulse sensor in the back door power window motor malfunctions (DTC B2221 is output), the power window functions will be restricted:

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).