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Home >> Ford >> 2021 >> Expedition XL, RWD >> Repair and Diagnosis (Single Page) >> 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 >> Network Message Chart

Network Message Chart

Module Network Input Messages - IPC 

Broadcast Message Originating Module Message Purpose
4x2 indicator TCCM Input used to control the 2WD (2H) RTT indicator.
4x4 high/low status TCCM Input used to display the change 4WD power transfer unit fluid messages.
4WD auto lamp display TCCM Input used to control the 4x4 auto (4A) RTT indicator and the off road display.
4WD high indicator request TCCM Input used to control the 4x4 high (4H) RTT indicator.
4WD low indicator request TCCM Input used to control the 4x4 low (4L) RTT indicator.
4WD off road mode display TCCM Input used to control the terrain management display and warning messages.
4WD service required TCCM Input used for the 4WD system faults input to control the powertrain malfunction (wrench) RTT warning indicator.
4WD status display TCCM Input used to control the neutral tow and off road display and warning messages. Also used to control the terrain management display and warning messages.
4WD range TCCM Input used to control the power distribution display.
Adaptive cruise control message display IPMA Input used to control the adaptive cruise control message displays.
Adaptive cruise control gap distance display IPMA Input used to control the adaptive cruise control gap display.
Auto high beam indication request IPMA Input used to control the auto high beam RTT indicator.
Battery low state of charge BCM Input used to control the charging system RTT indicator, the load shed warning message, and the charging system fault warning message.
Battery shed level request BCM Input used to turn off the PRNDL display when vehicle battery shed function is requesting battery conservation and control the PRNDL not in park warning indicator.
BLIS trailer tow left status SODL Input used to control the blind spot information system RTT indicator and trailer blind spot information display.
BLIS trailer tow right status SODR Input used to control the blind spot information system RTT indicator and trailer blind spot information display.
Body service required request BCM Input used for the BCM controlled system faults input to control the powertrain malfunction (wrench) RTT warning indicator.
Brake pedal applied PCM Input used to display the brake applied power reduced message.
Brake fluid level low message request BCM Input used to display the message center brake fluid level low message.
Brake (red) warning indicator request ABS module Input used to display the message center brake system fault message.
Camera front display status IPMA Input used to control the display of lane keeping system message center warning messages.
Camera status display IPMB Input used for off road display.
Cross traffic alert left status SODL Input used to control the blind spot information system RTT indicator.
Cross traffic alert right status SODR Input used to control the blind spot information system RTT indicator.
Cross traffic left sensor status SODL Input used to control the blind spot information system RTT indicator.
Cross traffic right sensor status SODR Input used to control the blind spot information system RTT indicator.
Cruise control set speed display PCM Input used to control the cruise control set speed displayed in the message center and control the digital speedometer.
Cruise control status PCM Input used to control the cruise control RTT indicator and message display based on the system status.
Cruise control override PCM Input used to control the adaptive cruise control set speed display when the cruise control is overridden by the driver.
Driver door ajar status BCM Input used to control the driver door ajar RTT indicator and warning message and the engine on warning message.
Electronic park brake (yellow) indicator request ABS module Input used to control the electronic park brake RTT indicator.
EPAS failure PSCM Input used to control the service power steering message display.
Engine coolant temperature data PCM Input used to control the temperature gauge, the over-temperature RTT warning indicator and warning message.
Engine oil life PCM Input used for the engine oil life display.
Engine overheat indication request PCM Input used to control the temperature gauge, the over-temperature RTT warning indicator and warning message.
Engine rpm data PCM Input used to control the low engine oil pressure RTT warning indicator, the engine idle hour display and to calculate the DTE display.
Engine service required request PCM Input used for the powertrain Electronic Throttle Control (ETC) component to control the powertrain malfunction (wrench) RTT indicator.
Factory mode BCM Input used to indicate the vehicle is set in factory mode during vehicle build. Input used for trailer information display.
Forward collision warning message request IPMA Input used to display the forward collision fault warning messages.
Front fog lamp indicator request BCM Input used to control the front fog lamp RTT indicator.
Fuel alcohol percent PCM Input used to calculate the running average fuel economy.
Fuel fill inlet message request PCM Input used to display the check fuel fill inlet message.
Fuel flow volume display PCM Input used to calculate the DTE.
Gearshift module service required GSM Input used to control the powertrain malfunction (wrench) RTT warning indicator.
Gear lever position PCM Input used to display the trailer information messages. Input is also used for the power distribution display.
GPS compass data APIM Input used to control the compass display.
Headlamp high/low beam status BCM Input used to control the high beam RTT indicator.
Hill descent message request ABS module Input used to control the hill descent RTT indicator, informational and fault messages. Also used for the off road display.
Hood ajar status BCM Input used to display the hood ajar RTT warning indicator and warning message.
Ignition status BCM Ignition RUN, START and accessory states required for the IPC operating modes and fault reporting. Also used to display the not in park warning message.
Ignition key type BCM Input used to determine the DTE based on whether the driver is using an administrator key or a MyKey® programmed key.
Immobilizer message display BCM Input used to display the PATS, passive entry and key programming messages.
Keycode status BCM Input used to display the factory keypad code.
Lane keeping system status display IPMA Input used to control the lane keeping system message center warning messages and display.
Lane keeping system hands off display IPMA Input used to control the lane keeping alert keep hands on wheel message center warning message.
Left rear door ajar status BCM Input used to control the left rear door ajar RTT warning indicator and warning message.
Left turn lamp on request BCM Input used to control the LH turn signal RTT indicator.
Liftgate ajar status BCM Input used to control the liftgate ajar RTT warning indicator and warning message.
Lock system message request BCM Input used to display the power child lock, switch inhibit and low key FOB battery message center messages.
Memory feedback request DSM Input used to display the memory seat operational messages.
Odometer count PCM Input used to display the vehicle odometer, the odometer reading for configured trailers in the trailer information display and to calculate the DTE.
Oil pressure warning indicator request PCM Input used to control the low engine oil pressure RTT warning indicator.
Parking brake chime request BCM Input used to control the parking brake engaged warning.
Parklamp status BCM Input used to control the lights on RTT indicator and trailer lighting display.
Parking aid front status PAM Input used to display the check parking aid messages.
Parking aid rear status PAM Input used to display the check parking aid messages.
Passenger door ajar status BCM Input used to control the passenger door ajar RTT warning indicator and warning message.
Power running board status RBM Input used to control the power running board step deployed and fault messages.
Perimeter alarm chime request BCM Input used to display the perimeter alarm message when the vehicle is entered before deactivating the perimeter alarm.
Power pack status PCM Input used to control the DTE display.
Power pack torque status PCM Input used to control the engine on warning message.
Powertrain cooling message request PCM Input used to display the reduced power to lower engine temperature.
Powertrain drive mode status PCM Input used to control the sport mode, snow/wet and tow haul RTT indicators for vehicles with column shift.
Reduced guard status BCM Input used to display the perimeter alarm reduced guard mode enabled/disabled status message.
Rear differential lock indicator request PCM Input used to control the electronic locking differential RTT indicator.
Rear differential lock message request DCMR Input used to control the electronic locking differential warning message.
Rear differential service required DCMR Input used to display the service electronic locking differential warning message.
Remote start status BCM Input used to control the remote start active message display.
Right rear door ajar status BCM Input used to control the right rear door ajar RTT warning indicator and warning message.
Right turn lamp on request BCM Input used to control the RH turn signal RTT indicator.
Selectable drive mode request ABS module Input used to control the terrain management RTT indicators and display messages.
Selectable drive mode message request ABS module Input used to control the terrain management RTT indicators and display messages.
Side obstacle status-left SODL Input used to display the BLIS off RTT indicator and BLIS/ CTA system fault messages.
Side obstacle status-right SODR Input used to display the BLIS off RTT indicator and BLIS/ CTA system fault messages.
Starting system message request PCM Input used to display starting system messages.
Stability-traction control chime request ABS module Input used to control the service AdvanceTrac® warning message. Also used to control the off road display.
Stability-traction control disabled indicator request ABS module Input used to control the stability-traction control disabled RTT indicator (sliding car OFF icon), traction control on/off status messages.
Stability-traction control indicator request ABS module Input used to control the stability-traction control RTT indicator.
Stability-traction control on/off message request ABS module Input used to control the stability-traction control on/off status messages.
Steering wheel angle ABS module Input used to control the vehicle angle in the off-road display.
Steering wheel message center switch data SCCM Inputs from the steering wheel message center switch that control the message center menus and displays.
Stop/start standby indicator PCM Input used to control the auto stop-start RTT indicator.
Stop/start text message request PCM Input used to control the auto stop-start message display.
Tire pressure placard data BCM Input used to display specific tire pressures by location.
Tire pressure warning indicator BCM Input used to control the TPMSRTT indicator.
Tire pressure system status BCM Input used to control the TPMS informational and fault messages and to display the current tire pressures.
Trailer battery charge TRM Input used to determine the trailer connected status and trailer battery charge for the trailer information display.
Trailer brake control status TBM Input used to display the trailer brake system fault and general trailer brake electrical messages.
Trailer lamp connected TRM Input used to determine the trailer connected status for the trailer information display.
Trailer lamp out TRM Input used to display trailer lamp outages.
Trailer reverse message request IPMB Input used for camera display for trailer backup assist.
Trailer setup IPMB Input used to control the trailer setup display from the rear camera for the trailer information display.
Trailer sway event in progress ABS module Input used to display the trailer sway reduce speed message.
Trailer turn indicator status TRM Input used to display the trailer turn signal status for the trailer information display.
Transmission gear display TCM Input used to display the not in park warning message. Input also used to control the progressive and SelectShift® displays.
Transmission gear display mode TCM Input used to control the progressive range select and SelectShift® transmission shift mode display. It is also used to control the engine on warning message and transmission not in park message.
Transmission message request TCM Input used to control the transmission display messages and warning messages.
Transmission service required TCM Input used for the transmission component to control the powertrain malfunction (wrench) RTT indicator.
Transport mode BCM Input used to indicate the vehicle is set in transport mode to display the appropriate message and power down/display items at key off to conserve the battery.
DTE display
Odometer display
PRNDL display
Trailer information
Trip odometer verify PCM Input used to control the odometer trip display.
Vehicle configuration data BCM Input used to control the odometer display.
Vehicle dynamics fault VDM Input used to control the vehicle dynamic suspension service required message.
Vehicle dynamics SOS ABS module Input used to control the spin-out detected message.
Vehicle roll angle display ABS module Input used to display the vehicle pitch in the off road display.
Vehicle pitch angle display ABS module Input used to display the vehicle angle in the off road display.
Vehicle speed PCM Input used to control the: digital speedometer display.
DTE display engine hour and engine idle hour displays engine on warning message.
PRNDL not in park warning message off road display overspeed warning RTT indicator (Gulf Cooperative Countries [GCC] only) power distribution display progressive range select and SelectShift® displays trailer information display.
Wheel torque PCM Input used to determine the fill level for the power distribution display.

Module Network Input Messages - PCM 

Broadcast Message Originating Module Message Purpose
Engine oil life data reset IPC Input used to confirm oil life reset.