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Home >> Cadillac >> 2001 >> Seville SLS >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window System >> Diagnostic Tests >> DTC B3377, B3382, B3387, B3392, B3397, B3452, B3457, B3467, B3472, B3477, B3482, B3517 Or B3522: Driver Door Switch Malfunction >> Description

DTC B3377, B3382, B3387, B3392, B3397, B3452, B3457, B3467, B3472, B3477, B3482, B3517 Or B3522: Driver Door Switch Malfunction: Description

Window switch that failed and generated this Diagnostic Trouble Code (DTC) is a window switch integral to Driver Door Switch Assembly (DDSA). There are no external circuits involved. 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. 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.

If Driver Door Module (DDM) receives a message from a door module indicating a window switch is closed for 15 continuous seconds or more, DDM will store DTC. When DTC is stored, action taken depends on which switch contacts are closed for 15 continuous seconds or more. The following are possible actions taken, when DTC is stored:

DDM clears current DTC when switch signal is no longer received, or ignition switch cycled from OFF to RUN positions.