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Home >> Ford >> 2021 >> Expedition SSV, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrumentation, Message Center And Warning Chimes (1 Of 2) >> Description And Operation >> Message Center - System Operation and Component Description >> System Operation >> Message Center Displays

Message Center Displays

Compass 

The compass is displayed as a 1 or 2 character display in the message center that indicates the current direction of the vehicle (N, NE, E, SE, S, SW, W, or NW). The IPC receives the GPS compass data message from the GWM over the HS-CAN3. The GWM receives the GPS compass data message from the APIM over the HS-CAN3.

Digital Speedometer 

NOTE: The digital speed displayed can differ slightly from the analog speedometer due to stepper motor-pointer movement and indication tolerances.

The IPC provides a digital speedometer display in the message center to indicate vehicle speed in a digital format.

The IPC receives the vehicle speed message and the cruise control set speed display message from the GWM over the HS-CAN3. The GWM receives the vehicle speed message and the cruise control set speed display messages from the PCM over the HS-CAN3.

DTE/Average Fuel Economy (AFE) 

The DTE is calculated in the IPC using the Running Average Fuel Economy (RAFE), which is the approximate fuel economy over the last 480 km (300 miles), and the fuel level input from the fuel sender(s) to determine how many miles the vehicle can be driven based on the remaining fuel in the tank. The DTE can vary in the short term by up to 80 km (50 miles), but is usually within 16 km (10 miles). Even if the fuel economy is relatively constant, the DTE can be off over a 80 km (50 mile) range by -24% to +38%. The DTE display and the fuel gauge both use the fuel level input from the fuel tank to provide their respective functions. If the fuel gauge doesn't function correctly, both the fuel gauge and the DTE display are affected.

The IPC defaults to a preset baseline mpg when the battery is initially connected and changes based on driving habits and conditions.

NOTE: The actual DTE can be higher or lower than the DTE displayed in the message center due to changes in driving conditions. It is important to understand how the DTE is calculated and the factors that impact the DTE display when determining how to address any DTE concerns.

Since the DTE is calculated and averaged over a longer period of time (480 km [300 miles]), varying driving conditions can have a significant impact on the current or short term DTE as opposed to the displayed DTE. This difference often leads to customer complaints of incorrect or invalid DTE. The following list provides some (not all) of the driving conditions that may lead to an incorrect or fluctuating DTE concern:

The IPC uses the following network messages to control the DTE/average fuel economy (AFE):

The IPC receives all messages from the GWM over the HS-CAN3. The GWM receives the transport mode and ignition key type messages from the BCM over the HS-CAN1. The GWM receives the fuel alcohol percent, fuel flow volume display, engine rpm data, power pack status, vehicle speed and odometer count messages from the PCM over the HS-CAN1.

Engine Hour And Engine Idle Hour 

The IPC provides engine hour and engine idle hour displays in the message center. The IPC receives the engine rpm data message for both displays from the GWM over the HS-CAN3. The GWM receives the engine speed message for both displays from the PCM over the HS-CAN1.

The engine idle hour display also uses vehicle speed to identify whether the engine is simply idling or if the vehicle is being driven. The IPC receives the vehicle speed message from the GWM over the HS-CAN3. The GWM receives the vehicle speed message from the PCM over the HS-CAN1.

Lane Keeping System 

The lane keeping system combines the lane keeping alert and lane keeping aid systems. The lane keeping alert system alerts the driver of unintentional drifting outside of the lane and the lane keeping aid system corrects the vehicle steering to keep the vehicle in the center of the lane. The IPC provides a lane keeping display indicating the vehicle position with relation to the lane markings as well as overlay or popup messages to alert the driver when they are drifting out of their lane. The lane markers change color to indicate the condition associated with a specific condition and action or warning as controlled by the lane keeping system.

The IPC receives the lane keeping system status display message from the GWM over the HS-CAN3.

The GWM receives the lane keeping system status display message from the IPMA over the HS-CAN2.

MyKey® Function Message Displays 

The IPC provides message center displays for the MyKey® feature. MyKey® displays are controlled through the IPC software based on the MyKey® settings configured through the message center and the type of key in use (MyKey® or administrator key). The MyKey® function also uses other messages received by the IPC for other indications such as vehicle speed for speed limiter displays.

Odometer 

The IPC receives the odometer count message, trip odometer verify and vehicle configuration data from the GWM over the HS-CAN3.

The GWM receives the odometer count message and trip odometer verify message from the PCM over the HS-CAN1. The GWM receives the vehicle configuration data from the BCM over the HS-CAN1.

The IPC monitors the odometer count input from the GWM and commands the odometer with a digital display in the message center.

Oil Life Message Center Display 

The IPC provides message center messages to inform the driver about the oil life status and when an oil change is required. The duration of the interval between oil changes is calculated in the PCM and varies due to driving conditions. The PCM assumes a base mileage of 16, 090 km (10, 000 mi) or 1 year for normal driving. However, this number is adjusted down for conditions such as high engine temperature, high engine rpm, use of flex fuel and possibly low oil level. The PCM calculates and provides the engine oil life percent message to the IPC. The IPC further converts the remaining oil life using the driver's configured oil life start value and displays the oil life percentage, indicating the remaining oil life. The oil change minder can be reset at any time by the driver.

The IPC receives the engine oil life message from the GWM over the HS-CAN3.

The GWM receives the engine oil life message from the PCM over the HS-CAN1.

The PCM receives the engine oil life reset request from the GWM over the HS-CAN1.

The GWM receives the engine oil life reset message from the IPC over the HS-CAN3.

Off Road Display And Power Distribution Status 

The power distribution display indicates the level of power applied to each wheel. As power is applied to the wheels, the area directly in front of each displayed wheel begins to fill in. The lowest power displayed is the closest to the wheel. As the amount of power sent to the wheels increases, the area fills in either forward (front wheels) or rearward (rear wheels) of the wheels. The IPC uses the following inputs to display and control the power distribution display:

Network Message Function
Gear position Used to determine the vehicle is in gear to initiate the power distribution display.
Vehicle speed Used to indicate the vehicle is in motion and to activate the display.
Wheel torque Used to identify the amount of torque applied to each wheel.

The off road display shows the vehicle pitch, vehicle roll, front wheel turning angle, 4x4 system status and eLocker status. The IPC uses the following inputs to display and control the off road display:

Network Message Function
4WD status display Used to control the 4WD on/off status display.
Stability-traction control chime request Used to indicate the traction control is off.
Steering wheel angle Used to display the steering angle in off road mode.
Vehicle speed Used to indicate the vehicle is in motion and to activate the display.
Vehicle roll angle display Used to display the vehicle roll.
Vehicle pitch angle display Used to display the vehicle pitch.

The IPC receives all messaged inputs from the GWM over the HS-CAN3.

For power distribution status, the GWM receives the gear position message from the GSM over the HS-CAN2.

For off road and power distribution status, the GWM receives the vehicle speed and wheel torque messages from the PCM over the HS-CAN1.

For off road status, the GWM receives the stability-traction control chime request, steering wheel angle, vehicle roll angle display and vehicle pitch angle display messages from the ABS module over the HS-CAN2.

For off road status, the GWM receives the 4WD status display message from the TCCM over the HS-CAN2.

Selectable Drive Modes (Less Terrain Management System) 

The IPC provides a message center RTT indicator to indicate which selected drive mode is currently active. This feature is available with 2WD or 4WD, low level cluster. The selectable drive modes are as follows:

The IPC uses the following messaged inputs to control the selectable drive mode display:

For additional information about the selectable drive modes, Refer to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .

The IPC receives all required messages from the GWM over the HS-CAN3.

The GWM receives the selectable drive mode request and selectable drive mode message request message from the ABS module over the HS-CAN2.

The GWM receives the powertrain drive mode status message from the PCM over the HS-CAN1.

Terrain Management System 

The IPC provides a message center RTT indicator to indicate which selected drive mode is currently active. The terrain management feature is available with 4WD, mid and high level clusters. The terrain modes are as follows:

The IPC uses the following messaged inputs to control the terrain management system display:

For additional information about the terrain management modes, Refer to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .

The IPC receives all required messages from the GWM over the HS-CAN3.

The GWM receives the selectable drive mode request and selectable drive mode message request message from the ABS module over the HS-CAN2.

The GWM receives the 4WD status display message from the TCCM over the HS-CAN2.

TPMS 

The IPC provides a message center display showing each tire on a vehicle image to indicate specific tire pressures.

The IPC receives the tire pressure system status and tire pressure placard data messages from the GWM over the HS-CAN3. The GWM receives the tire pressure system status and tire pressure placard data messages from the BCM over the HS-CAN1.

Trailer Information 

The trailer information function, located in the towing tab, allows the driver to save up to ten trailers, name the trailers and track or reset their mileage. When a trailer is connected to the vehicle, the trailer information screens display the information for the most recently connected trailer. The user can change the active trailer to another named trailer or create and name a new trailer. If the user chooses not to name a trailer, a default trailer is provided. This feature also provides step-by-step instruction for connecting standard trailers.

An additional feature is a display that indicates the current status of the trailer lighting. The trailer lighting display provides trailer running, stop and turn lights. The display shows an image of a trailer from the rear with individual lamps in typical locations. The lights are either filled or highlighted depending on the lamps status along with a text status for the lighting system.

The IPC uses the following inputs to display the trailer information.

The IPC receives all messaged inputs from the GWM over the HS-CAN3.

The GWM receives the odometer count and vehicle speed messages from the PCM over the HS-CAN1.

The GWM receives the gear lever position message from the TCM over the HS-CAN1.

The GWM receives the trailer reverse message request and trailer setup messages from the IPMB over the HS-CAN2.

The GWM receives the BLIS trailer tow left/right status messages from the SODL/ SODR over the MS-CAN.

The GWM receives the trailer lamp connected, trailer lamp out and trailer turn indicator status messages from the TRM over the MS-CAN.

Trailer Backup Assist 

As part of defining a trailer, the driver can enter measurements for any conventional trailer. When enabled, the IPC displays appropriate instructions and warnings for the trailer backup assist system through popup displays. The vehicle must be in PARK (P) to enter the trailer backup assist setup screens, but is not required to stay in those screens. For additional information about the trailer backup assist, refer to the appropriate Parking Aid article .

The IPC receives the trailer backup assist text message request from the GWM over the HS-CAN3. The GWM receives the trailer backup assist text message request from the PSCM over the HS-CAN2.

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