Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Retained Accessory Power Description and Operation

Chevrolet Sonic Repair Manual / Body / Body Electrical / Accessory Outlets / Retained Accessory Power Description and Operation

Retained Accessory Power
RAP Description and Operation Block Diagram

K9Body Control ModuleK73Telematics Communication Interface Control ModuleA11RadioKR76Retained Accessory Power Relay
Hard-Wired
Serial Data
K9?€‰Body Control Module
K73?€‰Telematics Communication Interface Control Module
A11?€‰Radio
KR76?€‰Retained Accessory Power Relay

The body control module (BCM) monitors the ignition switch position, battery condition, and each door ajar/open switch status to determine whether the retained accessory power should be initiated or terminated. Retained accessory power is controlled by two different methods; relay control and serial data. Some modules receive a retained accessory power message from the BCM over the serial data circuits. Serial data controlled retained accessory power is deactivated as required by their modules retained accessory power mode operation. Other subsystems are activated directly by the BCM through a relay. Components and systems that are active in retained accessory power are also activated anytime the ignition is any position other than OFF regardless of the door switch signals.

Relay Controlled Retained Accessory Power

The BCM keeps the relay energized during all power modes, except Off-Awake and Crank. The relay is also energized for approximately 10 minutes after shutting the ignition OFF and removing the key, providing no door is opened.

Relay controlled retained accessory power will end when one of the following conditions is met:

  • The BCM receives an input from any door ajar or open switch indicating the opening of any door after the ignition key is out of the ignition.
  • Note:

    If the BCM is receiving any door ajar or open signal from those switches when the ignition key is turned OFF, retained accessory power will not initiate.

  • The BCM internal timer for the retained accessory power expires after approximately 10 minutes.
  • The BCM detects a decrease in battery capacity below a prescribed limit.

Systems powered by the retained accessory power relay during the retained accessory power mode are as follows:

    Note:

    The vehicle may not be equipped with all components as listed below.

  • Accessory Power Receptacle
  • Cigarette Lighter Receptacle
  • Window Switches
  • Sunroof Control Module
  • Sunroof Switch
  • Mobile Device Wireless Charger Module
  • Mobile Telephone Control Module
  • Traffic Data Receiver
  • Transmission Shift Lever Position Indicator (w/floor mounted console gear shift)
  • Seat Heating Control Module
Serial Data Controlled Retained Accessory Power

Retained accessory power systems controlled by serial data are as follows:

Radio

Radio retained accessory power activation / termination is the same as relay operation with one exception; the only door switch that will turn off the radio during retained accessory power is the driver door open switch.

Vehicle Communication Interface Module (VCIM) (Onstar?®) (If Equipped)

VCIM RAP activation/termination is the same as radio operation with 1 exception; if there is an active call when the ignition key is turned off the VCIM will remain in RAP mode, and keep the radio in RAP mode until the call is terminated.

Power Outlets Description and Operation
System Description The vehicle is fitted with a cigarette lighter and/or with a 12?€‰V accessory power receptacle. The accessory power receptacle and cigarette lighter are operational ...

Special Tools
Illustration Tool Number/ Description EL 42059 J 42059 Cigar Lighter Socket Remover ...

Other materials:

Checking Engine Oil
It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is a loop. See Engine Compartment Overview  for the location of the engine oil dipstick. 1. I ...

Sunroof Window Seal Replacement
Removal Procedure Remove the sunroof window panel. Refer to Sunroof Window Replacement. Remove the seal from the window panel frame by pulling the seal away at one point and continuing around the perimeter of the frame. Clean around the edge of the inside surf ...

Liftgate
To lock or unlock the liftgate from the inside, press or on the central locking switch or on the driver door switch. The vehicle must be in P (Park) for automatic transmissions. For manual transmissions the parking brake must be engaged. To open the liftgate from the outside, press twi ...

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