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Home >> Toyota >> 2003 >> 4Runner Sport, 4.7 T, AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnostics >> DTC B2221 Jam Protection Pulse Sensor Circuit On Back Door >> Auto Up/Down Function Does Not Operate >> Circuit Description >> Notes
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Circuit Description: Notes

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.

Fig 1: DTC B2221 Jam Protection Pulse Sensor Specifications
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