Message Center - System Operation and Component Description

Charging System

The message center provides a warning message indicating the status of the charging system. When a fault is present in the charging system, the BCM sends the battery low state of charge message to the GWM over the HS-CAN1. The IPC receives the battery low state of charge message from the GWM over the HS-CAN3.

Check Fuel Fill

The message center provides a check fuel fill inlet message to warn the driver there is a problem with the fuel fill inlet pipe resulting from a significant evaporative emission leak following vehicle refueling.

The IPC receives the check fuel fill inlet message request from the GWM over the HS-CAN3. The GWM receives the check fuel fill inlet message request from the PCM over the HS-CAN1.

Convertible Top

The message center provides a warning message to inform the driver that a convertible top condition exits. The IPC receives the convertible top message request from the GWM over the HS-CAN3. The GWM receives the convertible top message request from the Manual Roof Control Module-A (MRCMA) over the MS-CAN.

Door Ajar

The message center provides specific door ajar and luggage compartment lid ajar warning messages that supplement the door ajar RTT and to indicate the status of the doors or luggage compartment lid. The BCM monitors each of the ajar inputs and sends the corresponding ajar message (driver door ajar status, passenger door ajar status or luggage compartment lid ajar) to the GWM over the HS-CAN1when a door or the luggage compartment lid is ajar. The IPC receives the door ajar status message from the GWM over the HS-CAN3.

Engine On

The message center provides the engine on warning message to inform the driver they are exiting the vehicle when the engine is running. The IPC uses multiple inputs to determine the vehicle is stopped and the driver is preparing to exit the vehicle. The messages required to control the engine on warning message are as follows:

Driver door ajar status Engine status Transmission gear display mode Vehicle speed

The IPC receives the driver door ajar status from the GWM over the HS-CAN3. The GWM receives the driver door ajar status from the BCM over the HS-CAN1.

The IPC receives the engine status, transmission gear display mode and the vehicle speed messages from the GWM over the HS-CAN3. The GWM receives the engine status, transmission gear display mode and the vehicle speed messages from the PCM over the HS-CAN1.

Engine Over-Temperature

The message center provides the engine coolant over-temperature message to supplement the engine over-temperature RTT and alert the driver the engine is over temperature. The IPC receives the engine overheat indication request and the engine coolant temperature data from the GWM over the HS-CAN3. The GWM receives the engine overheat indication request and the engine over-temperature message from the PCM over the HS-CAN1.

Forward Collision

The message center provides the forward collision warning messages to inform the driver of the forward collision status. The IPC receives the forward collision warning message request from the GWM over the HS-CAN3. The GWM receives the forward collision warning message request from the CCM over the HS-CAN2.

Hill Start Assist

The message center provides the hill start assist message to inform the driver of the hill start assist system status. The IPC receives the hill start assist status message from the GWM over the HS-CAN3. The GWM receives the hill start assist status message from the ABS module over the HS-CAN2.

Load Shed