RTT Indicators
System Diagram - RTT Indicators
RTT Indicators
| Item | Description |
|---|---|
| 1 | Engine oil pressure sensor |
| 2 | Parking brake switch |
| 3 | Brake fluid level switch |
| 4 | Door/hood ajar switches |
| 5 | Power tailgate latch |
| 6 | Side obstacle detection control module x (SODx) |
| 7 | CCM |
| 8 | Driver/passenger seatbelt buckle |
| 9 | Rear passenger seatbelt buckle |
| 10 | PCM |
| 11 | SOBDMC |
| 12 | TCCM |
| 13 | ABS module |
| 14 | BCM |
| 15 | SCCM |
| 16 | IPMA |
| 17 | RCM |
| 18 | BECM |
| 19 | GWM |
| 20 | Washer fluid level sensor |
| 21 | Fuel pump and sender unit |
| 22 | Traction control disable/hill descent control switch |
| 23 | IPC |
| 24 | RTT indicators |
Reconfigurable Telltales (RTTs)
| Item | Description |
|---|---|
| 1 | 4WD Reconfigurable Telltales (RTTs) (2H, 4H, 4L, 4A) |
| 2 | ABS |
| 3 | Airbag |
| 4 | Auto high beam |
| 5 | Auto hold |
| 6 | Auto stop-start |
| 7 | BLIS off |
| 8 | Brake warning |
| 9 | Charging system |
| 10 | Cruise control/adaptive cruise control |
| 11 | Door, hood ajar |
| 12 | Power tailgate ajar |
| 13 | Electric park brake |
| 14 | ELD |
| 15 | Engine over-temperature (motor over-temperature for HEV) |
| 16 | Engineering test mode |
| 17 | Forward collision system warning |
| 18 | Front fog lamps |
| 19 | Hazard - stop safely now (HEV) |
| 20 | High beams |
| 21 | Hill descent control ready |
| 22 | Lane centering aid |
| 23 | Lane keeping system |
| 24 | LH / RH turn indicator |
| 25 | Lights on |
| 26 | Low fuel |
| 27 | Low engine oil pressure |
| 28 | Low washer fluid |
| 29 | MIL (check engine) |
| 30 | One-pedal trail control |
| 31 | Overspeed warning (Gulf Cooperative Countries [GCC]) |
| 32 | Police boundary alert |
| 33 | Police engine idle |
| 34 | Powertrain malfunction (wrench) |
| 35 | Ready to drive (HEV) |
| 36 | Rear fog lamp (except North America) |
| 37 | Rear seatbelt monitor |
| 38 | Reverse braking assist |
| 39 | Seatbelt/Belt-Minder |
| 40 | Stability-traction control (sliding car icon) |
| 41 | Stability-traction control disabled (sliding car OFF icon) |
| 42 | TPMS |
| 43 | Trail control |
| 44 | Trail turn assist |
| 45 | Drive modes (Eco, Sport, Tow Haul, Slippery, Trail, Off Road, Rock Crawl) |
| 46 | Drive modes - Raptor (Sport, Tow Haul, Slippery, Off Road, Rock Crawl, Baja) |
| 47 | IPC display |
| Item | Description |
|---|---|
| 1 | Exhaust modes |
| 2 | Quiet |
| 3 | Normal |
| 4 | Sport |
| 5 | Off-road |
| 6 | Steering modes |
| 7 | Normal |
| 8 | Comfort |
| 9 | Sport |
| 10 | Off-road |
| 11 | Suspension modes |
| 12 | Normal |
| 13 | Sport |
| 14 | Off-road |
| 15 | MyMode |
| 16 | IPC display |
Network Message Chart - RTT Indicators
The RTT indicators are illuminated or displayed in the IPC when the IPC receives messaged inputs from other modules on the CAN, due to system faults detected, system status changes or for driver information. The IPC communicates on the HS-CAN3. If the originating module communicates on a network other than the HS-CAN3, the messaged signals are sent to the GWM first, then to the IPC.
| Indicator | Network Message | Originating Module | Originating CAN | Receiving Module |
|---|---|---|---|---|
| ABS warning | ABS warning indicator request | ABS module | FD-CAN1 | IPC |
| Airbag warning | Airbag waring indicator status | RCM | HS-CAN2 | IPC |
| Auto high beam | Auto high beam indicator request | IPMA | FD-CAN3 | IPC |
| Auto hold | Auto hold mode indicator | ABS module | FD-CAN1 | IPC |
| Auto stop/start | Stop-start standby indicator | PCM | FD-CAN1 | IPC |
| BLIS off | CTA left status CTA left sensor status Side obstacle detect status-left Side obstacle sensor status-left BLIS trailer tow status-left |
IPMA | FD-CAN3 | IPC |
| CTA right status CTA right sensor status Side obstacle detect status-right Side obstacle sensor status-right BLIS trailer tow status-right |
||||
| Brake warning/low brake fluid warning/parking brake | Brake (red) warning indicator request | ABS module | FD-CAN1 | IPC |
| Park brake active status | ||||
| Charging system warning | Battery low state of charge | BCM | FD-CAN1 | IPC |
| Cruise control/ACC /set speed display | Cruise control status Cruise control override Cruise conrol set speed display |
PCM | FD-CAN1 | IPC |
| Door, hood, power tailgate ajar | Driver door ajar status Passenger door ajar status Right rear door ajar status Left rear door ajar status Hood ajar status Tailgate ajar status |
BCM | FD-CAN1 | IPC |
| Drive mode (Eco, Sport, Tow Haul, Slippery, Trail, Off Road, Rock Crawl, Baja [Raptor]) | Selectable drive mode request Selectable drive mode status Active drive mode status |
ABS module | FD-CAN1 | IPC |
| Selectable AWD mode status | TCCM | FD-CAN1 | IPC | |
| ELD (eLocker) | Rear differential lock indicator request | TCCM | FD-CAN1 | IPC |
| Electric parking brake | Parking brake (red) lamp request | ABS module | FD-CAN1 | IPC |
| Engine over-temperature | Engine coolant temperature data Engine overheat indication request |
PCM | FD-CAN1 | IPC |
| Exhaust mode (Raptor) | Exhaust mode request | SCCM | FD-CAN3 | IPC |
| Forward collision warning | Forward collision warning indicator request | IPMA | FD-CAN3 | IPC |
| Four-wheel drive | 4x2 indicator request 4x4 low indicator request 4x4 high indicator request 4x4 auto indicator request |
TCCM | FD-CAN1 | IPC |
| Front fog lamp | Front fog lamp indicator request | BCM | FD-CAN1 | IPC |
| Hazard - stop safely now (HEV) | HEV transmission warning indicator request | SOBDMC | FD-CAN1 | IPC |
| HEV battery warning indicator request | BECM | HS-CAN2 | ||
| High beam | Headlamp high beam status | BCM | FD-CAN1 | IPC |
| Hill descent ready | Hill descent mode | ABS module | FD-CAN1 | IPC |
| Lane Centering Assist (LCA) | Traffic jam assist status | IPMA | FD-CAN3 | IPC |
| Lane Keeping System (LKS) | Lane keeping system status display | IPMA | FD-CAN3 | IPC |
| Lights on | Parklamp status | BCM | FD-CAN1 | IPC |
| Low fuel warning | Fuel level warning Fuel level display |
PCM | FD-CAN1 | IPC |
| Fuel level data | IPC | HS-CAN3 | PCM | |
| Low engine oil pressure | Oil pressure warning indicator request Engine rpm data |
PCM | FD-CAN1 | IPC |
| MIL (check engine) | MIL request | PCM | FD-CAN1 | IPC |
| One-pedal trail control | Train one-pedal mode indicator request | ABS module | FD-CAN1 | IPC |
| Overspeed warning (Gulf Cooperative Countries [GCC]) | Vehicle speed | PCM | FD-CAN1 | IPC |
| Police boundary (perimeter) alert | Boundary alert left status Boundary alert right status |
IPMA | FD-CAN3 | IPC |
| Police engine idle activation | Police idle mode status | BCM | FD-CAN1 | IPC |
| Powertrain malfunction (wrench) warning | Engine service required | PCM | FD-CAN1 | IPC |
| Transmission service required | PCM | FD-CAN1 | ||
| 4WD service required | TCCM | FD-CAN1 | ||
| Body service required | BCM | FD-CAN1 | ||
| Progressive range select | Transmission gear display mode Transmission gear display |
PCM | FD-CAN1 | IPC |
| Ready to drive (HEV) | Ready to drive indication request | PCM | FD-CAN1 | IPC |
| Rear fog lamp (China) | Rear fog lamp indicator request | BCM | FD-CAN1 | IPC |
| Reverse braking assist | Cross traffic alert brake warning-left Cross traffic alert left brake enable request Cross traffic alert brake warning-right Cross traffic alert right brake enable request Parking aid chime request |
IPMA | FD-CAN3 | IPC |
| Gear lever position | PCM | FD-CAN1 | ||
| Seatbelt (includes rear seatbelts) | Driver rear seatbelt buckle status Passenger rear seatbelt buckle status Rear center seatbelt buckle status |
RCM | HS-CAN2 | IPC |
| Seatbelt/Belt-Minder | Driver seatbelt buckle status | RCM | HS-CAN2 | IPC |
| Service interval | Global clock | BCM | FD-CAN1 | IPC |
| Stability-traction control (sliding car icon) | Stability-traction control indicator request | ABS module | FD-CAN1 | IPC |
| Stability-traction control disabled (sliding car OFF icon) | Stability-traction control disabled indicator request | ABS module | FD-CAN1 | IPC |
| Steering mode (Raptor) | Steering effort mode request | SCCM | FD-CAN3 | IPC |
| Suspension mode (Raptor) | Suspension mode request | SCCM | FD-CAN3 | IPC |
| TPMS | Tire pressure warning indicator | BCM | FD-CAN1 | IPC |
| Trail control | Trail control status | ABS module | FD-CAN1 | IPC |
| Trail turn assist | Trail assist mode indicator request | ABS module | FD-CAN1 | IPC |
| Turn indicator (LH / RH) | Left turn lamp on request Right turn lamp on request |
BCM | FD-CAN1 | IPC |
RTT Indicators
Prove-Out
The IPC carries out a display prove-out to verify the gauges function and all module controlled warning indicator lamps and monitored systems are functioning correctly within the IPC. Upon initiation of the prove-out, the gauges sweep from one stop to the other then return to the normal indication state based on the input received. The IPC also provides a timed prove-out of some indicators while other indicators illuminate upon engine start up or have no prove-out.
ABS Warning
If a fault condition exists in the ABS, the ABS module sends the ABS warning indicator request message to either flash or illuminate the ABS indicator or RTT warning indicator.
Refer to ABS /Brake/Stability-Traction Control System Indication description for information on the conditions when the ABS warning indicator is turned on.
ABS /Brake/Stability-Traction Control System Indication
The brake/stability-traction control system indication is controlled almost entirely by the ABS module. The ABS module can illuminate multiple indicators for various fault conditions. The following table provides a summary of the basic fault conditions and the indicators that are illuminated for each condition.
| Event/Fault Condition | ABS Indicator Status | Brake Warning Indicator Status | Electric Park Brake Indicator Status (Red) | Electric Park Brake Fault Indicator Status (Yellow) | Stability-Traction Control Indicator Status | Traction Control Disabled Indicator Status |
|---|---|---|---|---|---|---|
| Normal conditions | Off | Off | Off | Off | Off | Off |
| Parking brake applied | Off | Flashing while applying On when applied |
Off | Off | Off | Off |
| Low brake fluid level or brake fluid level input concern | Off | On | Off | Off | Off | Off |
| Stability-traction control event - trailer sway | Off | Off | Off | Off | Flashing | Off |
| Stability-traction control event - brake applied | Off | Off | Off | Off | Flashing | Off |
| Stability-traction control disabled by driver | Off | Off | Off | Off | Off | On |
| Single wheel speed sensor fault | On | Off | Off | Off | On | Off |
| 2 wheel speed sensor faults on the same axle or 3 wheel speed sensor faults | On | On | Off | On | On | Off |
| ABS module fault | On | On | Off | Off | On | Off |
| Park brake malfunction | Off | On | Flashing | On | Off | Off |
| ABS disabled | On | On | Off | Off | On | Off |
| All functions disabled | On | On | On | On | On | Off |
| Steering wheel angle sensor center not found | Off | Off | Off | Off | On | Off |
| ABS to CAN total failure | 4x2: On 4x4: On |
On | Off | On | On | Off |
| Electric park brake switch fault | Off | Off | Flashing | On | Off | Off |
| Configuration mismatch | Off | Off | Off | Off | On | Off |
| VIN mismatch | Off | Off | Off | Off | On | Off |
| ACC and ABS both active | Off | Off | Off | Off | Flashing | Off |
Adaptive Cruise Control/Cruise Control
The IPC provides a cruise control RTT indicator when the adaptive cruise control system is active or in standby mode.
Airbag Warning
The IPC provides the airbag warning RTT indicator if a SRS concern is detected. If a fault is detected in the airbag circuit, the RCM sets a DTC and the IPC illuminates the airbag warning RTT indicator.
Auto High Beam
The IPC provides the auto high beam RTT indicator to indicate the auto high beam is active.
Auto Hold
The IPC provides the auto hold RTT indicator to indicate the state of the auto hold feature. The auto hold feature holds a vehicle stationary once it has come to a stop using the brakes, allowing the driver to remove his or her foot from the brake pedal.
Auto Stop-Start
The IPC provides the auto stop-start RTT indicator, along with multiple messages displayed throughout the auto stop-start system operation, to inform the driver of the system status and to provide direction when driver intervention is required.
The auto stop-start indicator informs the driver of the following states:
| Indicator State | System Status |
|---|---|
| Solid green | The auto stop-start feature has temporarily turned off the engine. |
| Solid amber | A stop-start system concern exists. |
| Flash in either green or amber | A system state as determined by the PCM. |
Blind Spot Monitoring System (BLIS®) Off
The IPC provides a BLIS off RTT indicator to inform the driver the BLIS is turned off.
Brake Warning
The brake warning RTT indicator informs the driver the brake fluid level is low, there is a failure in the base brake system or the parking brake is applied. The IPC uses messaged inputs to control the brake warning RTT indicator.
Refer to ABS /Brake/Stability-Traction Control System Indication description for information on the conditions when the brake warning indicator is turned on.
Charge Warning (12-Volt Battery)
The IPC provides a charging system RTT indicator along with message displays indicating the charging system status. When a fault is present in the charging system, the BCM sends the battery low state of charge message to the IPC to display message center warning messages and the charging system RTT indicator.
Door Ajar, Hood Ajar Or Power Tailgate Ajar Warning
The IPC provides a door ajar warning RTT indicator along with message displays to indicate the status of the doors, hood and power tailgate (if equipped). The BCM monitors each of the ajar inputs and sends the specific door ajar status message to the IPC to display the ajar warning RTT indicator and corresponding warning message.
Drive Mode - Eco, Sport, Tow Haul, Slippery, Trail, Mud/Ruts, Off Road, Baja (Raptor)
The IPC provides a drive mode RTT indicator when a specific drive mode is selected.
ELD Indicator
The ELD indicator informs the driver the locking differential is engaged.
Electric Park Brake
The electric park brake RTT indicator illuminates when a fault in the electric park brake system is detected.
Engine Over-Temperature
The IPC provides an over-temperature warning RTT indicator to alert the driver the engine is over temperature.
Exhaust Mode (Raptor)
The IPC provides the exhaust mode indication when the exhaust mode is selected. Using the RH steering wheel switch, the driver can select normal, sport, Baja or quiet exhaust sound options.
Fog Lamp - Front
The IPC provides a front fog lamp RTT indicator to indicate when the front fog lamps are on.
Fog Lamp - Rear (China)
The IPC provides a rear fog lamp RTT indicator to indicate the rear fog lamp is on.
Forward Collision System (Pre-Collision Assist)
The IPC provides a RTT warning indicator to alert the driver the forward collision warning system is unavailable or a fault is detected, disabling the system.
The forward collision (pre-collision assist) warning RTT indicator can illuminate if the forward collision assist system is degraded due to environmental conditions that reduce camera vision function, such as direct or low light, ice on the windshield, heavy rain or fog. The RTT indicator can also illuminate when the driver turns the pre-collision assist or electronic stability control system off while in drive mode. This is part of normal system operation.
Four Wheel Drive System
The IPC provides a RTT indicator for each 4WD position selected: 2H, 4H, 4L, 4A.
Hazard - Stop Safely Now (HEV)
The IPC provides a hazard - stop safely now RTT indicator to inform the driver that a vehicle hazard may exist and a powertrain shutdown may be imminent or may have already occurred. The indicator appears in the form of a vehicle with an exclamation point.
High Beam
The high beam RTT indicator informs the driver the high beams are on.
Hill Descent Control
The IPC provides a hill descent control RTT indicator to indicate when the HDC is in ready mode, active control mode, or in an over-temperature mode with the system cooling.
Lane Centering Aid
The IPC provides the lane centering aid on RTT indicator to indicate the lane centering aid has been turned on, is active or in standby mode. The RTT indicator changes colors to indicate system status.
Lane Keeping System
The IPC provides the lane keeping system on RTT indicator to indicate the lane keeping system has been turned on, is active or in standby mode. The RTT indicator changes colors to indicate system status.
Lights On
When the parking lamps are turned on, the BCM sends the park lamp status to the IPC to illuminate the lights on RTT indicator.
Low Engine Oil Pressure
The IPC uses the engine oil pressure warning indicator request and engine RPM data from the PCM to control the low engine oil pressure RTT indicator. The engine oil pressure sensor is hardwired to the PCM. The IPC requires engine RPM above 400 RPM before the message center displays the low engine oil pressure warning.
Low Fuel
To supplement the fuel gauge indication, the IPC provides the low fuel warning RTT indicator.
The IPC uses the low fuel warning indicator request message sent from the PCM to the IPC to control the low fuel indicator.
When the DTE is 80 km (25 miles), 40 km (25 miles), 20 km (10 miles) and 0 km (0 miles), the low fuel indicator illuminates.
Low Washer Fluid Level
The low washer fluid level switch is hardwired to the IPC through a single signal circuit and is grounded through a separate ground circuit. The IPC provides a reference voltage to the washer fluid level switch. When the washer fluid is low, the washer fluid level switch closes, pulling the reference voltage low, and the IPC illuminates the low washer fluid level RTT indicator.
MIL (Check Engine)
The IPC provides the MIL (check engine) lamp RTT indicator when a fault in the engine or the powertrain system is detected.
Motor Over-Temperature (HEV Only)
The IPC provides a RTT warning indicator to alert the driver the hybrid motor is over temperature.
Overspeed Warning (Gulf Cooperative Countries [GCC])
The IPC provides an overspeed warning RTT indicator when the vehicle speed has reached or exceeded the 120 km/h (75 mph) threshold.
One-Pedal Trail Control
The IPC provides the one-pedal trail control RTT indicator to indicate the system is engaged (green), in standby mode (gray) or a system fault is detected (red).
Police Boundary (Perimeter) Alert
For vehicles equipped with the Police package, the IPC provides a boundary (perimeter) alert RTT indicator to inform the driver the boundary (perimeter) alert feature is active. The boundary (perimeter) alert feature uses inputs from the vehicle's sensors to detect a moving object near the vehicle. The IPC receives the signals from the IPMA to display a warning in the instrument cluster.
Police Engine Idle Activation
For vehicles equipped with the Police package, the IPC provides an idle activation RTT indicator to inform the driver the engine idle function is activated. The engine idle feature allows the vehicle engine to continue running with the vehicle in P without the key in the ignition.
Powertrain Malfunction (Wrench) Warning
The IPC provides a powertrain malfunction (wrench) RTT warning indicator to indicate a:
- BCM concern.
- 4WD system concern.
- gearshift concern.
- powertrain concern (Electronic Throttle Control [ETC]).
- transmission concern.
- Hybrid system or high voltage battery charging concern (HEV).
Progressive Range Select
The IPC provides the progressive range select RTT indicator to display each selected transmission gear position.
Ready to Drive (HEV)
The ready to drive RTT indicator informs the driver the vehicle is ready to be driven. Since the engine may turn on and off at different times during operation, the ready to drive indication helps eliminate the potential for the driver to interpret the engine turning off as a stall or other failure condition.
Reverse Braking Assist
The IPC provides a reverse braking assist RTT indicator to indicate the reverse braking system is activated. The reverse braking system uses the gear lever position and data from the BLIS modules and rear parking aid sensors to detect an object behind the vehicle when the vehicle is shifted into R. The reverse braking RTT indicator illuminates when the system applies the brakes.
Seatbelts (With Rear Seatbelts)
The RCM monitors the seatbelt positions through the seatbelt buckle switch. The IPC provides a seatbelt monitor RTT indicator to indicate a rear seatbelt is not fastened.
Seatbelts/Belt-Minder
The RCM monitors the driver and front passenger seatbelt positions through the seatbelt buckle switch. The RCM provides the driver and passenger seatbelt buckle status to the IPC to turn on or turn off the seatbelt warning RTT indicator.
Stability-Traction Control (Sliding Car Icon)
The stability-traction control (sliding car icon) RTT indicator informs the driver of the current status of the stability and traction control systems. The stability-traction control indicator illuminates when a fault condition exists or when an active traction control or stability control event is occuring.
Refer to ABS /Brake/Stability-Traction Control System Indication description for information on the conditions when the stability-traction control indicator (sliding car icon) is turned on.
Steering Mode (Raptor)
The IPC provides the steering mode indication when the steering mode is selected. Using the RH steering wheel switch, the driver can select normal, sport or comfort steering effort options.
Suspension Mode (Raptor)
The IPC provides the suspension mode indication when the suspension mode is selected. Using the RH steering wheel switch, the driver can select normal, sport or off road suspension ride options.
Traction Control Disabled (Sliding Car OFF Icon)
The stability-traction control is configured on/off from the console mounted switch. When the driver enables or disables the stability-traction control system, the ABS module sends the traction control off indicator request message to the IPC to illuminate or turn off the stability-traction control disabled (sliding car OFF icon) RTT indicator based upon the system state.
Refer to ABS /Brake/Stability-Traction Control System Indication description for information on the conditions when the stability-traction control disabled indicator (sliding car OFF icon) is turned on.
TPMS Warning
If the BCM determines the tire pressure has exceeded the low tire pressure limits, the tire pressure warning indicator request message is sent to the IPC to illuminate the TPMS warning RTT indicator.
If a TPMS monitor or sensor fault condition exists, the BCM sends the tire pressure warning indicator request message to the IPC to flash the TPMSRTT warning indicator. The IPC flashes the TPMSRTT warning indicator for 75 seconds then turns the indicator on solid.
Trail Control
The IPC provides the trail control RTT indicator to inform the driver the trail control system is enabled. Trail control allows the driver to select a constant low vehicle speed when driving off road or on rough terrain.
Trail Turn Assist
The IPC provides the trail turn assist RTT indicator to inform the driver the trail turn assist is enabled. The ABS module engages either the RH or LH braking in order to allow for tighter turn radius when 4WD is activated.
Turn Signal/Hazard
When the multifunction switch is in the LH or RH turn position or if the hazard switch is on, the BCM sends the left or right turn lamp on request to the IPC to flash the turn signal RTT indicator on and off.