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The driver door module (DDM)
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The passenger door module (PDM)
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The rear door module (RDM)
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The LH front power door lock switch
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The RH front power door lock switch
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The LH front door lock actuator
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The RH front door lock actuator
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The LH rear door lock actuator
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The RH rear door lock actuator
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The remote control door lock receiver (RCDLR)
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The power door serial data circuit
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The class 2 serial data circuit
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The DRVMDL Fuse - 10 amp
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The PDM Fuse - 10 amp
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The RRINMDL Fuse - 10 a
Class 2 and Power Door Serial Data Links
The class 2 and power door data circuits are both serial data links. The serial data circuits replace cables in the vehicle by multiplexing (time-sharing) data to and from each device over a single wire referenced to ground. If the power door serial data is lost, both the rear door module (RDM) and the passenger door module (PDM) enters the sleep mode. With the RDM and the PDM in sleep mode, no power door operations are possible.
Your best bet is to take it to the dealer or an ASE certified repair shop .
Before you replace anything, inspect the connector pins in both the driver's door switch and the passenger door switch. If you don't find any problem with these connector pins, replace the driver's door control switch.
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1998 golf. Only the drivers door will lock with the key.
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