Door Modules Power and Ground

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Each front door module has a separate battery voltage circuit fed by the rear fuse block. Each front door module is separately grounded through one or more circuits connected to a ground stake. These circuits are in the C3 harness connector of each front door module and are used for power outside rearview mirror operations, as well as to power up the modules. The driver door module (DDM) also uses these power and ground circuits to supply the driver door switch assembly (DDSA) with power and ground. In addition, the circuits are used for power door lock operations and for some power window functions, which are covered in the applicable power door locks or power windows description and operations sections.

The DDSA battery voltage circuit is fed, through the DDM, by the DRIVER DR MOD 10 amp fuse located in the left rear fuse block.

The DDM battery voltage circuit is fed by the DRIVER DR MOD 10 amp fuse located in the left rear fuse block.

The PDM battery voltage circuit is fed by the PSGR DR MOD 10 amp fuse located in the right rear fuse block.

These circuits must not be confused with the voltage and ground circuits of the door modules C1 harness connectors, which are used exclusively to drive the power window motors.