Bonneville V8-4.6L VIN Y (2004)
Body Control Module: Description and Operation
Modules
DASH INTEGRATION MODULE (DIM)
The DIM is wired to the class 2 serial data line. The various DIM input and output circuits are described in the corresponding functional areas as
indicated on the DIM electrical schematics.
The DIM functions include the following:
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Control of headlights and exterior lamps
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Horn relay control
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Interior lamps incandescent dimming
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Lamps On signal with wiper/washer
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Power moding control over Class 2 serial data line
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Steering wheel controls
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Storage of the clock settings and, sending a message out on the class 2 serial data circuit in response to requests from other modules
INSTRUMENT PANEL INTEGRATION MODULE (IPM)
The IPM is wired to the class 2 serial data line. The various IPM input and output circuits are described in the corresponding functional areas as
indicated on the IPM electrical schematics.
The IPM functions include the following:
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The ambient light sensor input and twilight delay input for headlamp control.
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The front HVAC air delivery and temperature control.
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The IP dimmer switch input.
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The ignition switch headlamp control.
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The interior lamps switch input.
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The key-in-ignition switch input from the ignition switch.
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The rear compartment lid release switch input.
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The traction control switch input.
REAR INTEGRATION MODULE (RIM)
The RIM is wired to the class 2 serial data line. The various RIM input and output circuits are described in the corresponding functional areas as
indicated on the RIM electrical schematics.
The RIM functions include the following:
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The ajar switch and tamper switch inputs from the rear compartment lid
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The automatic level control
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The cigar lighter relay control
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The fuel door lock and release control
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The heated seat controls
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The park brake relay control
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The rear compartment lid release controls
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The rear defogger relay control
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The retained accessory power (RAP) relay control
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The reverse lamp relay control
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The various controls for the interior lamps