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GMC Sierra 1500 2WD V6-4.3L VIN X (2004)13 · Accessories and Optional Equipment
13 · Body & interior

Accessory Delay Module: Description and Operation

Make
GMC
Model
Sierra 1500 2WD
Engine
V6-4.3L VIN X
Year
2004
Section
Accessory Delay Module › Description and Operation
Accessories and Optional EquipmentDescription and Operation
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Accessory Delay Module: Description and Operation

RETAINED ACCESSORY POWER (RAP) DESCRIPTION AND OPERATION

SERIAL DATA CONTROL OF RETAINED ACCESSORY POWER (RAP)

The class 2 modules receive the power mode message from the body control module (BCM) over the serial data circuits, indicating when the RAP
power mode is current. The BCM monitors the ignition switch position, battery condition and passenger compartment doors status to determine
whether RAP should be initiated. The modules then support the operation of the systems under their control as required by their RAP power mode
operation.

RAP will end when one of the following conditions is met:
-

The BCM receives an input indicating the opening of any compartment door.

-

The BCM internal timer for the RAP expires after approximately 10 minutes.

-

The BCM detects a decrease in battery capacity below a prescribed limit.

The BCM then sends a serial data power mode message Off-Awake ending the RAP function.

The class 2 RAP functions are:
-

The power windows

-

The radio

Pinch or Ctrl + scroll to zoom. Double-tap to reset.

Parts & tools for this job For 2004 GMC Sierra 1500 2WD 4.3L

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