DTC B3377, B3382, B3387, B3392, B3397, B3452, B3457, B3462, B3467, B3472, B3477, B3482, B3517, Or B3522: Driver Door Switch Assembly Window Circuits Low: Description

Window switch that failed and generated this Diagnostic Trouble Code (DTC) is one of the window switches built into Driver Door Switch Assembly (DDSA). There are no external circuits. DDSA contains a microprocessor which takes signal generated by switch and assigns a digital message to it. DDSA then sends this message over class 2 serial data line to appropriate door module, Driver Door Module (DDM), Passenger Front Door Module (PDM), Left Rear Door Module (LRDM), or Right Rear Door Module (RRDM). Door module controlling window operation requested examines information to determine if conditions are correct for operation to occur. If conditions are correct, door module controlling window then provides power and ground to appropriate window motor. Window motors are reversible. When an up movement is requested, door module applies battery voltage to up circuit and ground to down circuit. For a down movement, door module reverses polarity, and applies battery voltage to down circuit, and ground to up circuit.

DTC sets when DDSA determines that one of its built in window switches is closed for more than 15 continuous seconds.

When DTC sets, action taken depends on which switch contacts are closed:

• If a DDSA up window switch is closed for more than 15 seconds, both up and down signals from that switch will be ignored until input is no longer detected, or ignition switch is cycled from OFF to RUN positions.
• If a DDSA down window switch is closed for more than 15 seconds, down signals from that switch will be ignored until input is no longer detected, or ignition switch is cycled from OFF to RUN positions. Window up function from that switch will still be operational.
• If a DDSA express window switch is closed for more than 15 seconds, express signals from that switch will be ignored until DDSA no longer detects input.
• All windows will operate normally from their respective passenger door window switch.

DDSA clears current DTC when it no longer detects a closed window switch, or ignition switch is cycled from OFF to RUN position.