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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1095 (Information Center - Instrumentation, Message Center And Warning Chimes (1 Of 2)) >> Description And Operation >> Message Center - System Operation and Component Description >> System Operation >> Warning Messages

Warning Messages

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

The message center warning messages alert the operator to possible concerns or malfunctions in the vehicle operating systems. Warning messages are generally associated with other observable outputs of the IPC (gauges, informational indicators and RTT indicators. For example, when the BCM detects a low brake fluid condition, the BCM sends the IPC a request through the GWM to illuminate the brake warning indicator and a request to display the LOW BRAKE FLUID message in the message center. This allows the message center to be a more informative supplement to the IPC gauges and indicators.

AWD 

The message center provides AWD message center messages to provide shifting instructions and inform the driver of the status of the AWD system. The IPC receives the 4WD status display message from the GWM over the HS-CAN3. The GWM receives the 4WD status display message from the TCCM over the HS-CAN2.

Active Park Assist 

The message center provides instructional messages related to driver actions required to park the vehicle. The IPC receives the active park assist message display message from the GWM over the HS-CAN3.

The GWM receives the active park assist message display message from the PAM over the HS-CAN1.

Adaptive Cruise Control 

The message center provides warning messages explaining the need for driver intervention and system status. The adaptive cruise control messages are supplemental to the cruise control RTT and the adaptive cruise control warning chime. The IPC receives the cruise control set speed display, adaptive cruise control message display and adaptive cruise control gap distance display messages from the GWM over the HS-CAN3.

The GWM receives the cruise control set speed display message from the PCM over the HS-CAN1.

The GWM receives the adaptive cruise control message display and adaptive cruise control gap distance display messages from the CCM over the HS-CAN2.

Adaptive Headlamps 

The message center provides the adaptive headlamp fault message to inform the driver of a fault with the adaptive headlamps. The IPC receives the adaptive headlamp fault message from the GWM over the HS-CAN3. The GWM receives the adaptive headlamp fault message from the HCM over the HS-CAN1.

Auto Hold 

The message center provides auto hold informational and fault messages to indicate to the driver the state of the auto hold feature. The auto hold feature holds a vehicle stationary once the vehicle has come to a stop using the brakes, allowing the driver the convenience of removing his or her foot from the brake pedal. The IPC receives the auto hold message request from the GWM over the HS-CAN3. The GWM receives the auto hold message request from the ABS module over the HS-CAN2.

Auto Stop-Start 

The message center provides warning messages explaining the need for driver intervention and system status. The IPC receives the stop/start message request from the GWM over the HS-CAN3. The GWM receives the stop/start message request from the PCM over the HS-CAN1.

BLIS/ CTA 

The message center provides messages to inform the customer which side a vehicle is approaching and for Blind Spot Monitoring (BLIS®)/Cross Traffic Alert (CTA) faults. The IPC receives the cross traffic left alert status, cross traffic right alert status, side obstacle sensor status-left and the side obstacle sensor status-right messages from the GWM over the HS-CAN3. The GWM receives the cross traffic left alert status and the side obstacle sensor status-left messages from the SODL and the cross traffic right alert status and the side obstacle sensor status-right from the SODR over the MS-CAN.

Brake Applied - Power Reduced 

The message center provides a brake applied warning message to inform the driver that the brake pedal and accelerator pedals are both applied. The IPC receives the brake pedal applied message from the GWM over the HS-CAN3. The GWM receives the brake pedal applied message from the PCM over the HS-CAN1.

Brake System 

The IPC provides brake system messages for the following concerns and status:

When the parking brake is applied, the BCM sends the parking brake chime request to the GWM over the HS-CAN1. The GWM sends the parking brake chime message to the IPC over the HS-CAN3 to illuminate the brake warning indicator and turn on the parking brake applied message in the message center.

When a low brake fluid level condition exists, the BCM sends the brake fluid level low message request to the GWM over the HS-CAN1. The GWM sends the message to the IPC over the HS-CAN3 to illuminate the brake warning indicator and turn on the brake fluid level low message in the message center.

When an ABS or parking brake system concern exists, the ABS module sends the brake (red) warning indicator request message to the GWM over the HS-CAN2. The GWM sends the brake (red) warning indicator request message to the IPC over the HS-CAN3 to illuminate the ABS warning indictor and to turn on the check brake system message center warning display.

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 Inlet 

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 in 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.

Door, Hood or Liftgate Ajar 

The message center provides door, hood and liftgate ajar warnings to indicate the status of the doors, hood and luggage compartment lid. The IPC receives the driver door ajar, passenger door ajar, left rear door ajar, the right rear door ajar status, hood ajar status and liftgate ajar status messages from the GWM over the HS-CAN3. The GWM receives the driver door ajar, passenger door ajar, left rear door ajar, the right rear door ajar status, hood ajar status and liftgate ajar status messages from the BCM over the HS-CAN1. The BCM monitors each of the ajar inputs and sends the specific ajar status message to the IPC to display the appropriate ajar warning indicator and corresponding warning message.

Drive Control - Vehicle Dynamic Suspension 

The message center provides a warning message to inform the driver of a vehicle dynamic suspension system fault.

The IPC receives the vehicle dynamics fault message from the GWM over the HS-CAN3. The GWM receives the vehicle dynamics fault message from the ABS module over the HS-CAN2.

Electronic Parking Brake 

The message center provides warning messages to indicate the status of the electronic parking brake system. The messages displayed are a combination of informational messages, warning and system fault messages. The IPC uses the following messages to display the applicable message center message.

The IPC receives all messages required to display the electronic park brake messages from the GWM over the HS-CAN3.

The GWM receives the parking brake message request, the parking brake (red) indicator request and the brake (red) warning indicator request messages from the ABS module over the HS-CAN2.

The GWM receives the brake fluid level low message request from the BCM over the HS-CAN1.

ELD 

The message center provides instructional messages for engaging the ELD and messages to inform the driver of the ELD status. The IPC receives the rear locking differential service required message and the rear differential lock message request from the GWM over the HS-CAN3. The GWM receives the rear locking differential service required message and the rear differential lock message request from the TCCM over the HS-CAN2.

EPAS 

The message center provides a message to indicate there is an EPAS system concern. When a fault exists in the EPAS, the PSCM sends the EPAS failure message to the GWM over the HS-CAN2.

The IPC receives the EPAS failure 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:

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

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

The GWM receives the power pack torque 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 warning 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.

Factory Keycode 

The message center can display the original factory keycode when requested. The IPC receives the keycode status message from the GWM over the HS-CAN3. The GWM receives the keycode status message from the BCM over the HS-CAN1. For information on how to retrieve the factory keycode, REFER To HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .

Factory-Transport Mode 

During vehicle build, some modules, such as the IPC and the BCM, are set in factory mode. While in the factory mode the IPC displays FACTORY MODE CONTACT DEALER in the message center. If the vehicle is set in factory mode, the system does not automatically exit the mode and must be manually set to either the transport or normal operation mode.

When the vehicle build is complete, the vehicle is set to transport mode. While in transport mode, the IPC displays TRANSPORT MODE CONTACT DEALER in the message center. Transport mode is used to reduce the drain on the battery during longer periods where the vehicle is not used. Various systems may be altered or are disabled when in the transport mode. The vehicle automatically reverts to normal operation mode after being driven 201 km (125 mi).

The IPC receives the transport mode message from the GWM over the HS-CAN3. The GWM receives the transport mode message from the BCM 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.

Front Camera Malfunction 

The message center provides the front camera malfunction warning message to inform the driver there is a problem the front camera. The IPC receives the camera front display status message from the GWM over the HS-CAN3. The GWM receives the camera front display status message from the IPMA over the HS-CAN2.

Lane Keeping System 

The message center provides a warning message for the lane keeping alert and system fault messages for the lane keeping system. The IPC receives all required messages from the GWM over the HS-CAN3. The GWM receives the lane keeping system hands off display message, the lane keeping system status display and the camera status display message from the IPMA over the HS-CAN2.

Load Shed 

The message center provides load shed messages to inform the driver to use less options to conserve battery voltage. The IPC receives the battery low state of charge message from the GWM over the HS-CAN3. The GWM receives the battery low state of charge message from the BCM over the HS-CAN1.

Low Oil Pressure 

The message center uses the low engine oil pressure warning message as a supplement to the low oil pressure RTT indicator to inform the driver when low engine oil pressure exists. The engine oil pressure sensor is hardwired to the PCM. The PCM provides the oil pressure warning indicator request and the engine rpm data to the GWM over the HS-CAN1. The GWM provides the oil pressure warning indicator request and engine rpm data to the IPC over the HS-CAN3. The IPC requires engine rpm above 400 rpm before the message center displays the low oil pressure warning message.

Memory Seat Status 

The message center provides memory seat status messages to provide the driver confirmation that memory position storing was successful or that recalling a memory position cannot be recalled while driving the vehicle. The IPC receives the memory feedback request message from the GWM over the HS-CAN3. The GWM receives the memory feedback request message from the DSM over the MS-CAN.

Neutral Tow 

The message center provides towing system messages to indicate the status of the neutral tow feature when the neutral tow system is enabled and the vehicle is capable of free-rolling. The IPC receives the 4WD status display message from the GWM over the HS-CAN3. The GWM receives the 4WD status display message from the TCCM over the HS-CAN2.

Off Road Mode 

The message center provides an off road mode instructional message to inform the driver how to enter the off road mode while driving the vehicle. The IPC receives the 4WD status display message from the GWM over the HS-CAN3. The GWM receives the 4WD status display message from the TCCM over the HS-CAN2.

Oil Life 

The message center provides warning 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 low oil level on some vehicles. The PCM calculates and provides the engine oil life percent message to the IPC. The oil change minder can be reset at any time by the driver.

The PCM receives the engine oil life data reset request from the GWM over the HS-CAN1. The GWM receives the engine oil life data reset request from the IPC over the HS-CAN3.

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.

Parking Aid System 

The message center provides warning messages to indicate the status of the parking aid system. The IPC receives the parking aid front status and parking aid rear status messages from the GWM over the HS-CAN3. The GWM receives the parking aid front status and parking aid rear status messages from the PAM over the HS-CAN1.

Park Not Available 

The message center provides the park not available to indicate there is a concern with the transmission electronic park system.

The IPC receives an electronic park system fault message request from the GWM over the HS-CAN3.

The GWM receives an electronic park system fault message request from the TCM over the HS-CAN1.

PATS And Passive Key And Immobilizer System 

The message center provides the starting system fault message to indicate there is a concern with the PATS. The message center provides passive key and immobilizer system messages to indicate the key is in the luggage compartment, the key is left in the vehicle, no key is detected, accessory power is active or to press the brake to start the vehicle. The IPC uses the immobilizer message display messaged input from the BCM to display the applicable message center message.

The IPC receives the immobilizer message request from the GWM over the HS-CAN3.

The GWM receives the immobilizer message request from the BCM over the HS-CAN1.

Perimeter Alarm And Reduced Guard (Intrusion/Motion) 

The message center provides the perimeter alarm warning message to indicate the perimeter alarm has been activated and to start the vehicle to stop the alarm. The IPC receives the perimeter alarm chime request message from the GWM over the HS-CAN3. The GWM receives the perimeter alarm chime request message from the BCM over the HS-CAN1.

When exiting the vehicle, the message center also provides a popup menu to allow the driver to select the level of protection provided by the reduced guard (intrusion/motion) feature of the alarm system. The IPC receives the reduced guard status message from the GWM over the HS-CAN3. The GWM receives the reduced guard status message from the BCM over the HS-CAN1.

Power Child Lock 

The IPC provides a power child lock warning to inform the driver the child lock feature did not function properly. The power child lock feature is activated through the rear window lockout switch on the driver side master window control switch.

The IPC receives the lock system message request from the GWM over the HS-CAN3. The GWM receives the lock system message request from the BCM over the HS-CAN1.

Powertrain Cooling 

The message center provides a warning message to inform the driver that vehicle performance is reduced to allow the engine to cool. This feature is part of the smart cooling function in the PCM and provides powertrain cooling protection under high ambient temperature conditions.

The IPC receives the powertrain cooling message request from the GWM over the HS-CAN3. The GWM receives the powertrain cooling message request from the PCM over the HS-CAN1.

Power Running Boards 

The message center provides the power running boards warning messages to inform the driver the status of the power running board feature. The IPC receives the power running board status message from the GWM over the HS-CAN3. The GWM receives the power running board status message from the RBM over the MS-CAN.

Remote Start 

The message center provides remote start messages to inform the driver the vehicle is in the remote start active state and how to change the state to a drivable state. The remote start message display is active as soon as the vehicle is remote started (the engine is running, but the ignition status is off). Once the driver places the ignition in the RUN state, the IPC carries out it's startup sequence.

The IPC receives the remote start status message from the GWM over the HS-CAN3. The GWM receives the remote start status message from the BCM over the HS-CAN1.

Selectable Drive Mode 

The message center provides the drive mode selection reduced message to inform the driver of a drive mode system fault. The IPC receives the selectable drive mode request and selectable drive mode status messages from the GWM over the HS-CAN3.

The IPC receives the selectable drive mode request, selectable drive mode status and 4WD status display messages from the GWM over the HS-CAN3. The GWM receives the selectable drive mode request and selectable drive mode status messages from the ABS module over the HS-CAN2. The GWM receives the 4WD status display message from the TCCM over the HS-CAN2.

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

Stability-Traction Control 

The message center provides a stability-traction control system message to indicate the stability-traction control system has a fault and requires service. When a fault condition exists in the stability-traction control system, the ABS module sets a DTC and sends the stability-traction control chime request to the GWM over the HS-CAN2. The GWM sends the stability-traction control chime request to the IPC over the HS-CAN3.

Starting System (Stop-Start And One-Touch Starting) 

The message center provides starting system instructional and status messages to inform the driver of further actions required to start the engine or to explain the reason for the inability to start the engine. The IPC receives the starting system fault message request and the stop/start message request messages from the GWM over the HS-CAN3. The GWM receives the starting system fault message request and the stop/start message request messages from the PCM over the HS-CAN1.

Switch Inhibit And Low Key Fob 

The IPC provides a switch inhibit warning to notify the driver that some switches have been purposely inhibited and are inoperative. For security purposes, interior switches are inhibited by the BCM 20 seconds after the vehicle is electronically locked and prevents someone from using a stick (or other object) through an open window and activating the switch.

The IPC provides a low key fob battery warning to alert the driver the key fob battery needs to be replaced. The low key fob battery warning is not displayed in RUN or START modes if the lock warning is active to prevent the BCM from cycling between the two warnings, causing the chime associated with the switch inhibit warning to repeatedly sound every 4 seconds.

The IPC receives the switch inhibit message request from the GWM over the HS-CAN3. The GWM receives the switch inhibit message request from the BCM over the HS-CAN1.

TPMS 

The message center provides warning messages to indicate the TPMS sensor training status or a malfunction in the TPMS. The IPC receives the tire pressure system status message from the GWM over the HS-CAN3. The GWM receives the tire pressure system status message from the BCM over the HS-CAN1.

Trailer 

The message center provides messages describing the status of the trailer electrical system. The IPC uses the following inputs to display the trailer message center messages.

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

The GWM receives the trailer brake control status message from the TBM over the HS-CAN2.

The GWM receives the trailer sway event in progress message from the ABS module over the HS-CAN2.

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

Trailer Sway 

The message center provides the trailer sway warning message to inform that a trailer sway has been detected and to reduce speed to help get the trailer under control. The IPC receives the trailer sway event in progress message display request from the GWM over the HS-CAN3. The GWM receives the trailer sway event in progress message display request from the ABS module over the HS-CAN2.

Transmission 

The message center provides warning messages to inform the driver about transmission conditions and faults. The IPC uses the operational mode based on the ignition status message and vehicle speed to determine that the vehicle is still in motion and the ignition was switched off.

The IPC receives the transmission message request from the GWM over the HS-CAN3.

The GWM receives the transmission message request from the TCM over the HS-CAN1.

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