FAIL-SAFE FUNCTION
When communication fails in any of the main wires (communication lines) due to a short circuit or other causes, the fail-safe function, which is specified for each system, operates to prevent the system from malfunctioning.
The table below shows the effects on each system when communication is impossible. For further details, refer to each system.
| Function | Control Master (Main ECU to determine controls) |
System Related | Fail-safe Operation | Driver Detectable | DTC Detection (ECU that stored DTC) |
|---|---|---|---|---|---|
| Engine System Indicator Display
|
ECM | Combination meter assembly | The meter display cannot be cleared. |
When there is a transmission stop or when the bus is continuously detected:
When there is a reception stop: |
- |
| Electrical Load Control (Performs idle up according to the electrical load.) |
ECM |
|
Idle up according to the electrical load is not performed. | The idling speed changes. | - |
| Air Conditioning-linked Control
|
ECM | Air conditioning amplifier assembly | Air conditioning-linked control does not operate (cannot perform idle up). | Air conditioning does not operate. | - |
| PTC Heater (Performs idle up according to requests from the PTC heater [including coolant heater] or heater system.) |
ECM | Air conditioning amplifier assembly | The PTC heater does not operate (permission is not granted). |
When there is a transmission stop or when the bus is continuously detected:
When there is a reception stop: |
- |
| Charging Control (Performs idle up according to charging requests.) |
ECM |
|
|
|
- |
| Spring Vibration Damping Control (Improves the behavior of the spring due to outside disturbances using transient driving force control.) |
ECM |
|
|
- | - |
| Eco Driving Indicator | ECM | Combination meter assembly | Nothing | No information is displayed. | - |
| Integrated Control (VDM) (Estimates the driver requested torque based on the accelerator pedal operation and performs torque characteristic control according to driving conditions so that driveability, acceleration performance and acceleration feeling are improved.) |
ECM |
|
Does not estimate the driver requested torque based on the accelerator pedal operation and does not perform torque characteristic control according to driving conditions and as a result, driveability, acceleration performance and acceleration feeling are not improved. | Does not estimate the driver requested torque based on the accelerator pedal operation and does not perform torque characteristic control according to driving conditions and as a result, driveability, acceleration performance and acceleration feeling are not improved. | - |
| ECT System Indicator (Displays shift, switch and mode information to the meter.) |
ECM | Main body ECU (multiplex network body ECU) | Nothing | ECT system indicators do not illuminate. | - |
| AI-SHIFT Control (Controls the automatic transmission in order to improve engine braking power and acceleration feel.) |
ECM |
|
AI-SHIFT control does not operate. | - | - |
| Neutral Control (Reduces engine load and performs idle up.) |
ECM |
|
Neutral control does not operates. | - | U0129 (ECM) |
| Coast Downshift/Heater Requested Upshift Delay (Changes the coast downshift point based on the air conditioning load. Performs heater requested upshift delay.) |
ECM | Air conditioning amplifier assembly | Coast downshift does not operate. | Coast downshift shock becomes stronger. | - |
| Cruise Control (Adjusts engine throttle valve opening amount automatically to maintain vehicle speed) |
|
|
The cruise control system does not operates. |
|
- |
| Pre-crash Safety System (Uses the front camera to recognize vehicles and pedestrians and sends that target information to the control ECU (DSS1).) |
Forward recognition camera |
|
Initializes the recognition processing result and sends it to the driving support ECU assembly (unrecognized condition). |
|
(Forward recognition camera) |
| Lane Departure Alert System (Uses the front camera to recognize the lane markers of the currently traveled lane and uses that information together with the vehicle information to perform the following functions.)
|
Forward recognition camera |
|
Lane departure alert system is stopped |
|
(Forward recognition camera) |
| Automatic High Beam System (Uses the front camera to recognize headlights and taillights and sends that target information to the control ECU (Main body ECU [multiplex network body ECU]).) |
Forward recognition camera |
|
Maintains the previous values. | Malfunctions are notified on the multi-information display in the combination meter. |
(Forward recognition camera) |
| Road Sign Assist (Uses the front camera to recognize road signs in front of the vehicle and displays them on the combination meter.) |
Forward recognition camera |
|
Road sign assist system is stopped |
|
(Forward recognition camera) |
| TC DTC Output Service (While TC = ON is being received from the engine, a DTC is output in response to the request from the combination meter assembly.) |
Combination meter assembly | ECM | Ends the TC service when reception of the TC signal is lost during the TC service (TC = ON) and this is regarded as TC = OFF. | - | - |
| Timestamp (Stores the timestamp information received from the Main body ECU [multiplex network body ECU] together with the DTC.) |
Airbag sensor assembly | Main body ECU (multiplex network body ECU) | Changes to a separate count inside the ECU and sets separate count recognition information when it receives a fail value or communication stops. | - | - |
| Collision Detection Signal Notification (Sends notification of the collision status for fuel cut, EDR trigger, etc. during a vehicle collision.) |
ECM | Airbag sensor assembly | Nothing | - | - |
| SRS Warning Light Control (Sends the SRS warning light on/off information.) |
Combination meter assembly | Airbag sensor assembly | Nothing | - | - |
| Seat Belt Warning Control (Sends information about the passengers in order to turn the seat belt warning on and off.) |
|
Airbag sensor assembly | Nothing | - | - |
| Trigger Signal/Self Transmission (Outputs the airbag sensor assembly signal.) |
Airbag sensor assembly | Skid control ECU | Data is periodically transmitted every 12 ms. | - | - |
| Event Data Recorder (EDR) (Records conditions, such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the event data recorder recording conditions are met.) |
Airbag sensor assembly |
|
|
- | - |
| Drive Data Recorder (DDR) (Records conditions such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the drive data recorder recording conditions are met.) |
Airbag sensor assembly |
|
|
- | - |
| AACN (Sends data stored by the event data recorder to the emergency call service.) |
Telematics transceiver | Airbag sensor assembly |
|
- | - |
| Door Lock (Operates the lock and unlock (the key-linked function, key lock-in prevention function, automatic lock function, etc.).) |
Main body ECU (multiplex network body ECU) |
|
|
- |
(Main body ECU [multiplex network body ECU]) |
| Alarm (Sounds warning) |
Main body ECU (multiplex network body ECU) | ECM | Nothing | - |
(Main body ECU [multiplex network body ECU]) |
| Automatic Display Dimming (Controls the display dimming.) |
Main body ECU (multiplex network body ECU) | Combination meter assembly |
|
- | U0155 (Main body ECU [multiplex network body ECU]) |
| Illumination (Performs illumination control.) |
Main body ECU (multiplex network body ECU) |
|
|
The dome light does not turn off immediately after exiting the vehicle. |
(Main body ECU [multiplex network body ECU]) |
| Equipment Related (Performs equipment control.) |
Remote Starter, Alarm | Bus buffer ECU | Operation is stopped. | The remote starter and alarm function does not operate. | U1117 (Main body ECU [multiplex network body ECU]) |
| Seat and Mirror Control (Controls the memory function (the seat, steering wheel, tilt and telescopic and mirror position adjustments).) |
Main body ECU (multiplex network body ECU) |
|
|
- |
(Main body ECU [multiplex network body ECU]) |
| Diagnostic/C-BEST (Diagnostic phase 4 communication.) |
- | All ECUs connected to CAN | Exits diagnostic mode. | - | - |
| Entry/Wireless (Controls smart/wireless functions.) |
Certification ECU (smart key ECU assembly) | Certification ECU (smart key ECU assembly) |
|
- | U0327 (Main body ECU [multiplex network body ECU]) |
| Light Control (Controls DRL.) |
Main body ECU (multiplex network body ECU) | ECM | DRL control does not operate. | - | U0100 (Main body ECU [multiplex network body ECU]) |
| Tire Pressure Monitor Sensor (Monitors the tire pressure, meter speed, etc. and drives the meter indicator and multi-information display [BERKES-CAN GW].) |
Tire pressure warning ECU and receiver | Combination meter assembly | Initial communication value is sent to the BERKES side. | The tire pressure monitor sensor indicator blinks for 1 minute and then stays illuminated. | U0155 (Main body ECU [multiplex network body ECU]) |
| Automatic High Beam System (Controls the high beam output automatically when the smart beam sensor detects a preceding or oncoming.) |
Main body ECU (multiplex network body ECU) | Forward recognition camera | The system does not operate (The meter indicator blinks). | The AHB indicator blinks. | U023A (Main body ECU [multiplex network body ECU]) |
| Mirror Control
|
Main body ECU (multiplex network body ECU) |
|
|
- |
(Main body ECU [multiplex network body ECU]) |
| Lost Communication Detection (The NS and NM frames of the ECU connected to the global bus are monitored to detect for ECU communication failures.) |
Central gateway ECU (network gateway ECU) | ECUs connected to the global bus | Stores the communication failure time. | - | - |
| Clearance Sonar Customize (Receives settings of the clearance sonar by the user operating the display.) |
Clearance warning ECU assembly |
|
Nothing | - | - |
| Display Dimming (Performs dimming control for the clearance sonar main switch indicator.) |
Clearance warning ECU assembly |
|
|
- | - |
| Shift Position Judgment (Receives shift position data which it uses for the clearance sonar detection operation conditions.) |
Clearance warning ECU assembly |
|
Changes to an operation state which is used when the shift lever is in P. | - | U0101 (Clearance warning ECU assembly) |
| Vehicle Speed Judgment (Receives vehicle speed data which it uses for the clearance sonar detection operation conditions.) |
Clearance warning ECU assembly |
|
Changes to an operation state which is used when the vehicle speed is 20 km/h (12 mph) or higher. | - | U0155 (Clearance warning ECU assembly) |
| Distance Correction (Corrects the distance measured by ultrasonic waves using the ambient temperature information.) |
Clearance warning ECU assembly |
|
Changes to an operation state that is used when the ambient temperature is 25°C. | - | - |
| PKB Judgment (For vehicles with a manual transmission, receives PKB information and uses it for the clearance sonar detection operation condition.) |
Clearance warning ECU assembly |
|
When there is a communication stop, PKB is recognized as "ON". | - | U0142 (Clearance warning ECU assembly) |
| Vehicle Information Judgment (Judges existence of EV/HV vehicle, AT/MT, RHD/LHD or Eco-run, and switches control.) |
Clearance warning ECU assembly |
|
|
|
U0100 (Clearance warning ECU assembly) |
| eCall/ERA GLONASS Contract
|
Telematics transceiver | ECM | Registration requests from the diagnostic tool during a communication stop are denied. | - | U0100 (Telematics transceiver) |
| Door Mirror Foot Light Illumination Control (Controls the door mirror foot light illumination based on the light illumination request from the Main body ECU [multiplex network body ECU].) |
|
Main body ECU (multiplex network body ECU) | The door mirror foot light does not operate. | The door mirror foot light does not operate. | - |
| Mirror Operation Control (Controls operation of the mirrors based on mirror switch information from the main body ECU [multiplex network body ECU].) |
|
Main body ECU (multiplex network body ECU) | Cannot control the manual mirror operation. | Cannot control the manual mirror operation. | U0142 (Outer mirror control ECU assembly LH/Outer mirror control ECU assembly RH) |
| Mirror Heater Control (Controls the operation of the mirror heaters based on the operation request from the air conditioning amplifier assembly.) |
|
|
Does not operate the mirror heaters. | Does not operate the mirror heaters. | U0142 (Outer mirror control ECU assembly LH/Outer mirror control ECU assembly RH) |
| Electronic Outer Mirror Retraction Control (Controls the electronic retraction operation of the mirrors based on mirror switch information from the main body ECU [multiplex network body ECU].) |
|
Main body ECU (multiplex network body ECU) | Does not operate the electronic mirror retraction function. | Does not operate the electronic mirror retraction function. | - |
| Performs reverse linked mirror control (Controls the reverse-linked operation based on the reverse request information from the main body ECU [multiplex network body ECU].) |
|
Main body ECU (multiplex network body ECU) | Does not operate the reverse shift-linked function. | Does not operate the reverse shift-linked function. | - |
| Memorization and Recall Control (Memorizes the position of the mirrors based on the memory request from the main body ECU [multiplex network body ECU], and controls recall operation for the memorized position.) |
|
Main body ECU (multiplex network body ECU) |
|
|
- |
| Pre-crash Safety System (Recognizes the obstacles, sounds warning buzzer and performs brake assist and brake control to avoid collisions.) |
Driving support ECU assembly |
|
Cancels pre-crash brake assist, pre-crash warning buzzer and pre-crash brake control. |
|
(Driving support ECU assembly) |
| Dynamic Radar Cruise Control System (Driving support function that maintains a constant vehicle-to-vehicle time with the preceding vehicle.) |
Driving support ECU assembly |
|
The cruise control system does not operates. |
|
(Driving support ECU assembly) |
| Microcomputer Preset Driving Position System
|
Front power seat switch (power seat control ECU) |
|
|
|
- |
| Dynamic Radar Cruise Control System (Accelerates or decelerates the vehicle to maintain the distance to the vehicle ahead.) |
Driving support ECU assembly | Driving support ECU assembly | The cruise control system does not operates. |
|
U1104 (Driving support ECU assembly) |
| Pre-crash Safety System (Recognizes the obstacles, sounds warning buzzer and performs brake assist and brake control to avoid collisions.) |
Driving support ECU assembly | Driving support ECU assembly | Cancels pre-crash brake assist, pre-crash warning buzzer and pre-crash brake control. |
|
U1104 (Driving support ECU assembly) |
| Transfer High-low Switching (Judges the vehicle speed, T/M information and switches to Transfer High-low according to the switching operation performed by the user.) |
4 wheel drive control ECU (4WD control ECU) |
|
|
When transfer is switching between high and low: |
(4 wheel drive control ECU [4WD control ECU]) |
| Transfer Center Differential Free-Lock Switching (Judges the vehicle speed, T/M information and switches to Transfer Center Differential Free-Lock according to the switching operation performed by the user.) |
4 wheel drive control ECU (4WD control ECU) |
|
|
When transfer center differential is switching between free and lock or transfer center differential is locked |
U0122 (4 wheel drive control ECU [4WD control ECU]) |
| Rear Differential Free-Lock Switching (Judges the vehicle speed and switches to Rear Differential Free-Lock according to the switching operation performed by the user.) |
4 wheel drive control ECU (4WD control ECU) |
|
|
When the rear differential is switching between free and lock or the rear differential is locked: |
U0122 (4 wheel drive control ECU [4WD control ECU]) |
| 2-4 Switching (The vehicle speed is judged and switching between H2 and H4 according to the switching operation performed by the user.) |
4 wheel drive control ECU (4WD control ECU) |
|
|
|
U0122 (4 wheel drive control ECU [4WD control ECU]) |
| H-L Switching (Judges the vehicle speed, T/M information and switches to H-L according to the switching operation performed by the user.) |
4 wheel drive control ECU (4WD control ECU) |
|
|
|
(4 wheel drive control ECU [4WD control ECU]) |
| Wheel Speed Fail Characteristics Control (Even when there is a wheel speed sensor open circuit (fail-safe), 4WD switching (2-4, H-L and Rear Differential Lock) is performed by the user's operation.) |
4 wheel drive control ECU (4WD control ECU) |
|
H2 to H4 and H4 to L4 switching prohibited. |
|
U0100 (4 wheel drive control ECU [4WD control ECU]) |
| Vehicle Speed Restriction Function (Vehicle speed is restricted when front differential is hot.) |
4 wheel drive control ECU (4WD control ECU) | Skid control ECU | The vehicle speed restriction flag and vehicle speed restriction value is set as the fail-safe value. |
|
- |
| KSS (Opens and closes accumulator valve to suppress roll.) |
Stabilizer control ECU |
|
|
|
(Stabilizer control ECU) |
| Multi-terrain Monitor (Supports checking of road surface conditions near the vehicle that can easily become driver blind spots by using the camera switch to switch the images captured by the 4 cameras installed on the front, rear and left and right sides.) |
Parking Assist ECU | Parking Assist ECU |
|
|
U0073 (Parking Assist ECU) |
| ECM |
When back view and side view in L4 mode and side view in H4 mode are displayed:
When front view and side view in L4 mode and panoramic view and front view in H4 mode are displayed: |
|
U0100 (Parking Assist ECU) |
||
| 4 wheel drive control ECU (4WD control ECU) |
When L4 mode is displayed:
When L4 mode is not displayed: |
When L4 mode is displayed:
When L4 mode is not displayed: |
U0114 (Parking Assist ECU) |
||
| Airbag sensor assembly |
When L4 mode is displayed:
When L4 mode is not displayed: |
When L4 mode is displayed:
When L4 mode is not displayed: |
U0124 (Parking Assist ECU) |
||
| Spiral cable with steering angle sensor | Estimated course line can no longer be displayed. |
|
U0126 (Parking Assist ECU) |
||
| Skid control ECU |
When L4 mode is displayed:
When L4 mode is not displayed: |
When L4 mode is displayed:
When L4 mode is not displayed: |
U0129 (Parking Assist ECU) |
||
| Skid control ECU | Cancels camera display control when ABS operates. |
|
U0129 (Parking Assist ECU) |
||
| Skid control ECU |
When side view in H4 mode is displayed:
When side view in H4 mode is not displayed: |
When side view in H4 mode is displayed:
When side view in H4 mode is not displayed: |
U0129 (Parking Assist ECU) |
||
| Skid control ECU |
When L4 mode is displayed:
When L4 mode is not displayed: |
When L4 mode is displayed:
When L4 mode is not displayed: |
U0129 (Parking Assist ECU) |
||
| Main body ECU (multiplex network body ECU) |
|
|
U0140 (Parking Assist ECU) |
||
| Clearance warning ECU assembly | Clearance sonar cooperative display is not displayed. |
|
U1110 (Parking Assist ECU) |
||
| Wake-up/Sleep Characteristics (Switches between "normal operation mode (wake up)" and "sleep mode" conditions in conjunction with the other ECUs to reduce the dark current.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) |
|
|
- |
| Light ON/OFF Timing Chart (Specifies the meter illumination ON and OFF timing.) |
Combination meter assembly | ECM | Control continues based on the last signal received before the ignition switch is turned off. | Lights flicker due to cranking after engine started. | - |
| Dimming Judgment
|
Combination meter assembly | Main body ECU (multiplex network body ECU) |
|
|
- |
| Speedometer (Controls the speedometer according to vehicle speed signals.) |
Combination meter assembly | Skid control ECU | Control is performed with input signal set as "0". | The speedometer displays "0". | U0129 (Combination meter assembly) |
| Tachometer (Controls the tachometer according to engine speed signals.) |
Combination meter assembly | ECM | Control is performed with input signal set as "0". | The engine speed displays as "0". | U0100 (Combination meter assembly) |
| Fuel Gauge (Displays remaining fuel amount according to the remaining fuel amount measured in the fuel sender.) |
Combination meter assembly |
|
Control is performed with input signal set as "0". | Gauge does not operate normally. | U0129 (Combination meter assembly) |
| Coolant Temperature (Controls the gauge according to the engine coolant temperature signal.) |
Combination meter assembly | ECM | The pointer needle is at the center of the "C" mark or below. | The pointer needle is at the center of the "C" mark or below. | - |
| ODO/TRIP Meter (Displays the ODO/TRIP value according to vehicle speed signals.) |
Combination meter assembly | Skid control ECU | The calculation stopped and the last displayed value remained until the ignition switch is turned off. | Display state is maintained. (Uses previous data without integrating initial data after recovering.) |
U0129 (Combination meter assembly) |
| AT Reverse (BZR) (Sounds the buzzer when the shift lever is moved to R while drive torque is being generated.) |
Combination meter assembly | ECM | Control is performed with signal set as "0". | The buzzer does not sound. | - |
| Seat Belt Buzzer (Specifies the conditions for the buzzer sounding when the driver and passenger side seat belts are unfastened.) |
Combination meter assembly |
|
Control is performed with signal set as "0". |
|
U0129 (Combination meter assembly) |
| Brake Buzzer (Sounds the buzzer (sounds intermittently, once or twice) according to the buzzer operation request signal.) |
Combination meter assembly | Skid control ECU | Control is performed with signal set as "0". | The buzzer does not sound. | - |
| Entry Key Intermittent Buzzer (Sounds the buzzer (sounds intermittently) according to the buzzer operation request signal.) |
Combination meter assembly | Certification ECU (smart key ECU assembly) | The buzzer does not sound. | The buzzer does not sound. | - |
| Start While in Motion Information Buzzer (Vehicle rolling prevention) (Sounds the buzzer as a notification measure when the ignition switch is turned off (ACC ON) due to an emergency stop procedure being performed while driving (vehicle rolling prevention).) |
Combination meter assembly | Certification ECU (smart key ECU assembly) | Control is performed with signal set as "0". | The buzzer does not sound. | - |
| Push Operation While in Motion Warning Buzzer (Vehicle rolling prevention) (If the user mistakenly presses the push start switch while driving, the system warns the user that there is a possibility of the engine stopping if the push operation is continued (vehicle rolling prevention).) |
Combination meter assembly | Certification ECU (smart key ECU assembly) | Control is performed with signal set as "0". | The buzzer does not sound. | - |
| P Position Reminder Door Ajar Warning Buzzer (Sounds the buzzer (sounds continuously) according to the buzzer operation request signal.) |
Combination meter assembly | Certification ECU (smart key ECU assembly) | Control is performed with signal set as "0". | The buzzer does not sound. | - |
| LDW Warning Buzzer (Sounds the buzzer (sounds intermittently) according to the buzzer operation request signal.) |
Combination meter assembly | Driving support ECU assembly | Control is performed with signal set as "0". | The buzzer does not sound. | U023A (Combination meter assembly) |
| Erratic Driving Rest Alert Buzzer (Sounds the buzzer (sounds twice) according to the buzzer operation request signal.) |
Combination meter assembly | Driving support ECU assembly | Control continues based on the last signal received before the ignition switch is turned off. | Last signal state | U023A (Combination meter assembly) |
| PKB-ON Driving Warning Buzzer (Sounds the buzzer (sounds intermittently) in accordance to the vehicle speed according to the parking brake state signal.) |
Combination meter assembly |
|
Control is performed with signal set as "0". | The buzzer does not sound. | U0129 (Combination meter assembly) |
| Door Ajar Driving Warning Buzzer (Sounds the door ajar driving warning buzzer (sounds intermittently) in accordance to the vehicle speed according to the door courtesy switch state signal.) |
Combination meter assembly |
|
Control is performed with signal set as "0". |
|
U0129 (Combination meter assembly) |
| Speed Warning Buzzer (Combined with indicator) (Sounds the buzzer (sounds intermittently) in accordance to the vehicle speed according to the vehicle speed signal.) |
Combination meter assembly | Skid control ECU | Control is performed with signal set as "0". | The buzzer does not sound. | U0129 (Combination meter assembly) |
| PKB-ON Driving Warning Buzzer (Sounds the buzzer (sounds intermittently) according to the buzzer operation request signal.) |
Combination meter assembly | Skid control ECU | Control is performed with signal set as "0". | The buzzer does not sound. | U0129 (Combination meter assembly) |
| Light Reminder Buzzer (Sounds the buzzer (sounds continuously) according to the illumination status signal and driver seat courtesy switch signal input.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | The buzzer does not sound. | The buzzer does not sound. | - |
| DPF Buzzer (Sounds the buzzer (sounds intermittently) according to the buzzer operation request.) |
Combination meter assembly | ECM | The buzzer does not sound. | The buzzer does not sound. | - |
| Key Reminder (CAN communication) (Sounds the buzzer (sounds intermittently) according to the key switch and driver seat courtesy switch signals.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | The buzzer does not sound. | The buzzer does not sound. | - |
| 4WD Buzzer (Sounds the buzzer according to the buzzer operation request.) |
Combination meter assembly | 4 wheel drive control ECU (4WD control ECU) | Control is performed with signal set as "0". | The buzzer does not sound. | - |
| Check Engine Buzzer (Sounds the buzzer according to the buzzer operation request.) |
Combination meter assembly | ECM | Control is performed with temporary values until the ignition switch is turned off. | Sounding | U0100 (Combination meter assembly) |
| BEAM Indicator (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Display state is maintained. | Display state is maintained. | - |
| Turn Hazard Light Output (Performs turn hazard light illumination control according to the illumination request.) |
Combination meter assembly |
|
Control is performed with signal set as "0". | Turn hard light does not illuminate. | U0129 (Combination meter assembly) |
| TAIL Indicator (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Display state is maintained. | Display state is maintained. | - |
| Front Fog light (Telltale) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Display state is maintained. | Display state is maintained. | - |
| Rear Fog light Indicator (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Display state is maintained. | Display state is maintained. | - |
| Front Seat Seat Belt Indicator (Performs indicator operations according to the driver seat buckle switch signal or passenger seat buckle switch signal input via CAN communication or linear switch operation.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Last signal state maintained. | Last signal state maintained. | - |
| SIL Indicator (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | ECM | Not illuminated. | Not illuminated. | - |
| AIRBAG (Telltale) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Airbag sensor assembly | Control is performed using the signal as a temporary value. | Telltale illuminates | U0151 (Combination meter assembly) |
| SLIP (Telltale) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Skid control ECU | Control is performed using the signal as a temporary value. | Telltale illuminates | U0129 (Combination meter assembly) |
| Multi-terrain Select Operation Indicator (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Skid control ECU | Last signal state | Last signal state | - |
| PPS (Telltale) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Power steering ECU assembly | Control is performed using the signal as a temporary value. | Telltale illuminates | U0131 (Combination meter assembly) |
| KDSS Indicator (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Stabilizer control ECU | Control is performed using the signal as a temporary value. | Telltale illuminates | - |
| Clearance Sonar (Telltale) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Clearance warning ECU assembly | Not illuminated. | Not illuminated. | - |
| 120 km/h Warning (Telltale) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | Skid control ECU | Control is performed with signal set as "0". | Not illuminated. | U0129 (Combination meter assembly) |
| ECO Light/Ambient Light Display (for Eco-navigation) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | ECM | Control is performed with signal set as "0". | Not illuminated. | U0100 (Combination meter assembly) |
| Go To Service (Operates the indicator according to the illumination command signal.) |
Combination meter assembly | ECM | Control is performed with signal as a temporary value until the ignition switch is turned off. | Telltale illuminates | U0100 (Combination meter assembly) |
| Headlight System (Telltale + Multi-display) (Operates the indicator according to the illumination command signal.) |
Combination meter assembly |
|
Last signal state | Last signal state | U0182 (Combination meter assembly) |
| Brake Warning (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Skid control ECU |
|
|
U0129 (Combination meter assembly) |
| ABS (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Skid control ECU | Control is performed using the signal as a temporary value. | The telltale light and warning display illuminate. | U0129 (Combination meter assembly) |
| TRC OFF (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Skid control ECU | Control is performed using the signal as a temporary value. | May mistakenly illuminate during start control. | - |
| LDA (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Driving support ECU assembly |
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U023A (Combination meter assembly) |
| PCS (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Driving support ECU assembly |
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U1104 (Combination meter assembly) |
| BOS/DSC/ICS (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | ECM | Control is performed using the signal as a temporary value. |
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| Entry System Display (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly |
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Last signal state | Last signal state | - |
| OIL PRESSURE (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | ECM |
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U0100 (Combination meter assembly) |
| Tire Pressure Warning (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Last signal state | Last signal state | U0142 (Combination meter assembly) |
| DOOR (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly |
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U0129 (Combination meter assembly) |
| OIL LEVEL (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly |
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May mistakenly illuminate. | U0100 (Combination meter assembly) |
| MAINT REQD (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | ECM | Control is performed using the signal as a temporary value. | May mistakenly illuminate during start control. | - |
| AT Fluid Temperature (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | ECM | Control is performed with the drivable flag = ON. | May mistakenly illuminate. | U0100 (Combination meter assembly) |
| Urea SCR System Warning Display (Telltale + Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | ECM |
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| Check Engine (Performs display processing according to the signal.) |
Combination meter assembly | ECM | Control is performed with signal as a temporary value until the ignition switch is turned off. | MIL (Check malfunction indicator lamp) illuminates. | U0100 (Combination meter assembly) |
| RSA (Road Sign Assist)(MID+BZR) (Performs display processing according to the signal.) |
Combination meter assembly | Forward recognition camera | Control is performed with signal set as "0". |
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- |
| Drive Monitor (Common Specification) (Performs display processing according to the signal.) |
Combination meter assembly |
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(Combination meter assembly) |
| Ambient Temperature (Performs display processing according to the signal.) |
Combination meter assembly | Air conditioning amplifier assembly | Displays as "E". | Displays as "E". | - |
| Road Surface Ice Display (Performs display processing according to the signal.) |
Combination meter assembly | Air conditioning amplifier assembly | Control is performed using the signal as a temporary value. | Not displayed. | - |
| Eco Drive Indicator Zone Display (Performs display processing according to the signal.) |
Combination meter assembly | ECM | Control is performed using the signal as a temporary value. | Not displayed. | U0100 (Combination meter assembly) |
| Speedometer (Numerical Display) (Performs display processing according to the signal.) |
Combination meter assembly | Skid control ECU | Control is performed with signal set as "0". | Displays as "0". | U0129 (Combination meter assembly) |
| Shift Display (Performs display processing according to the signal.) |
Combination meter assembly | ECM |
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- |
| Tire Pressure Pressure Display (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) |
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| Air Suspension Display (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Suspension control ECU | Last signal state | Last signal state | - |
| Multi-terrain Select (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly |
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Display is blank.
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U0129 (Combination meter assembly) |
| Steering Angle Display (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Spiral cable with steering angle sensor | Tires do not display. | Tires do not display. | - |
| Air Suspension Check Display (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Suspension control ECU | Last signal state | Last signal state | - |
| Clearance Sonar (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Clearance warning ECU assembly | Last signal state | Last signal state | - |
| Entry Unlock Mode Setting Display (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Certification ECU (smart key ECU assembly) | Not displayed. | Not displayed. | - |
| Sliding Roof Open Warning (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Last signal state | Last signal state | - |
| Tire Pressure Pressure Display (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly |
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| PKB-ON Driving Warning (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly |
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U0129 (Combination meter assembly) |
| Intrusion Sensor Operation Display (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Main body ECU (multiplex network body ECU) | Not displayed. | Not displayed. | - |
| LDA Warning Timing Change (Software Switch) (Displays the set value and outputs the CAN signal to switch the setting of the receiving ECU.) |
Combination meter assembly | Driving support ECU assembly |
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Does not display the set value. | U023A (Combination meter assembly) |
| SWS Erratic Driving Warning ON/OFF (Software Switch) (Displays the set value and outputs the CAN signal to switch the setting of the receiving ECU.) |
Combination meter assembly | Driving support ECU assembly |
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Does not display the set value. | U023A (Combination meter assembly) |
| SWS Erratic Driving Warning Sensitivity Change (Software Switch) (Displays the set value and outputs the CAN signal to switch the setting of the receiving ECU.) |
Combination meter assembly | Driving support ECU assembly |
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Does not display the set value. | U023A (Combination meter assembly) |
| RSA (Software Switch) (Displays the set value and outputs the CAN signal to switch the setting of the receiving ECU.) |
Combination meter assembly | Forward recognition camera |
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Does not display the set value. | - |
| BSM ON/OFF (Software Switch) (Displays the set value and outputs the CAN signal to switch the setting of the receiving ECU.) |
Combination meter assembly | Blind spot monitor sensor LH |
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Does not display the set value. | - |
| PCS Warning ON/OFF (Software Switch) (Displays the set value and outputs the CAN signal to switch the setting of the receiving ECU.) |
Combination meter assembly | Driving support ECU assembly |
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Does not display the set value. | U023A (Combination meter assembly) |
| PCS Erratic Driving Warning Sensitivity Change (Software Switch) (Displays the set value and outputs the CAN signal to switch the setting of the receiving ECU.) |
Combination meter assembly | Driving support ECU assembly |
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Does not display the set value. | U023A (Combination meter assembly) |
| Crawl Control Switch Illumination ON/OFF Control (Operates the switch illumination on and off according to the signal.) |
Combination meter assembly | Skid control ECU |
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Not illuminated. | U0129 (Combination meter assembly) |
| Multi-terrain Select Switch Illumination ON/OFF Control (Operates the switch illumination on and off according to the signal.) |
Combination meter assembly | Skid control ECU | Last signal state | Last signal state | - |
| Rental Car Mode Display (Displays the driving distance (ODO) when the user enters or exits the vehicle.) |
Combination meter assembly |
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Ignition switch turned ON:
When the ignition switch is off: |
Does not operate normally. | - |
| Inclination Monitor (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly |
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U0129 (Combination meter assembly) |
| CDY Mode Display (Performs display processing according to the signal.) |
Combination meter assembly | ECM | Last signal state | Last signal state | - |
| Millimeter Wave Radar Adjustment Mode Notification (Performs display processing according to the signal.) |
Combination meter assembly | Driving support ECU assembly | Last signal state | Last signal state | U1104 (Combination meter assembly) |
| Electronical Component Operation Restriction Notification (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Air conditioning amplifier assembly | Last signal state | Last signal state | - |
| AVS Mode (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | Suspension control ECU | Last signal state | Last signal state | - |
| DMS Mode (Multi-display) (Performs display processing according to the signal.) |
Combination meter assembly | ECM | Last signal state | Last signal state | - |
| Language-linked (Multi-media-linked) |
Combination meter assembly |
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Control is performed using the last signal received. | Last signal state | U0163 (Combination meter assembly) |
| Accent Color (Multi-media-linked) (Multi-media-linked) |
Combination meter assembly |
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Control is performed using the last signal received. | Last signal state | U0163 (Combination meter assembly) |
| VFC (Changes the PS flow rate according to the vehicle state.) |
Power steering ECU assembly |
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PPS warning light illuminates. |
(Power steering ECU assembly) |
| AVS (Variably controls the damping force according to the vehicle input state.) |
Suspension Control ECU |
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Displays messages on the multi-information display. |
(Suspension control ECU) |
| Air Suspension (Variably controls the vehicle height according to the vehicle input state.) |
Suspension control ECU |
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Displays messages on the multi-information display. |
(Suspension control ECU) |
| Anti-lock Brake System Control (Prevents the wheels from locking during sudden stops.) |
Skid control ECU | Airbag sensor assembly |
During control:
Other than during control: |
ABS warning light illuminates. |
(Skid control ECU) |
| Vehicle Stability Control/Traction Control/Vehicle Dynamics Integrated Management Control
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Skid control ECU |
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During control:
Other than during control: |
Slip indicator light illuminates. |
(Skid control ECU) |
| Hill-start Assist Control
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Skid control ECU |
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During control:
Other than during control: |
Slip indicator light illuminates. |
(Skid control ECU) |
| Engine Start 1 (Requests immobiliser cancellation by two-way communication with the certification ECU.) |
Remote Start | Certification ECU (smart key ECU assembly) | Does not allow engine starting control. | Engine cannot start by remote start. | - |
| Engine Start 2 (Requests to turn the ACC and IG power supply on and off.) |
Remote Start | Certification ECU (smart key ECU assembly) | Does not allow engine starting control. | Engine cannot start by remote start. | - |
| Vehicle Registration (Requests remote start registration by two-way communication with the certification.) |
Remote Start | Certification ECU (smart key ECU assembly) | Does not allow to register the remote starter to the vehicle. | No answer-back is sounded indicating registration completion to the vehicle. | - |
| Air Conditioning Control (Requests automatic air conditioning and defogger control.) |
Remote Start | Air conditioning amplifier assembly | Does not allow air conditioning control during remote starter control. | Does not perform air conditioning control during remote start control. | - |
| Rear View Monitor (Monitors the shift position signal, steering angle signal and vehicle speed and displays the estimated course lines in accordance with the steering angle amount when the vehicle is being driven in reverse.) |
Rear television camera assembly |
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(Rear television camera assembly) |
| Eco Navigation Display (Displays the average fuel consumption history and a graph indicating the fuel consumption in 1 minute intervals.) |
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Nothing | - | - |
| Blind/Spot/Detection (Detects neighboring vehicles that are in outer mirror blind spots and notifies drivers of the existence of these vehicles.) |
Blind spot monitor sensor LH |
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Maintains the previous values. | Displays messages on the multi-information display. |
(Blind spot monitor sensor LH) |
| Automatic Tire Position Display (Links the tire pressure warning valve and transmitter ID with tire positions based on the wheel speed count from the brakes.) |
Tire pressure warning ECU and receiver | Skid control ECU | Cannot stop DTC registration auto location control. | - | U0129 (Tire pressure warning ECU and receiver) |
| A/C Control (Controls the air conditioning according to the engine coolant temperature information, controls the operation according to the viscous heater operation permission information and controls the operation according to the PTC heater operation permission information.) |
Air conditioning amplifier assembly |
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(Air conditioning amplifier assembly) |
| Leveling (Adjust the vertical beam axis direction of the headlights according to the pitch angle calculated using the wheel speeds and vehicle height sensor value.) |
No. 1 headlight ECU sub-assembly LH |
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Leveling control stops (beam axis position is stopped at position when malfunction was detected). | - |
(No. 1 headlight ECU sub-assembly LH) |
| Leveling Indicator (Monitors leveling system malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.) |
No. 1 headlight ECU sub-assembly LH | Combination meter assembly | Maintains the leveling indicator state. | - | - |
| Destination Determination
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No. 1 headlight ECU sub-assembly LH |
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Nothing | - |
(No. 1 headlight ECU sub-assembly LH) |
| Cornering Light (Turns the cornering light on and off according to the wheel speed, turn, steering angle and shift position data.) |
No. 1 headlight ECU sub-assembly LH |
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Stops cornering light control (cornering light turns off). | - |
(No. 1 headlight ECU sub-assembly LH) |
| Low Beam, High Beam, DRL (Domestic Default), Clearance, Side Marker (OPT) (Turns the specified light source on and off according to low beam, high beam, DRL [domestic default], clearance light and side marker light command data.) |
Main body ECU (multiplex network body ECU) | No. 1 headlight ECU sub-assembly LH | Forces the low beams, clearance lights and side marker lights to illuminate. | - | U0142 (No. 1 headlight ECU sub-assembly LH) |
| LED Headlight Indicator (Monitors low beam LED malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.) |
No. 1 headlight ECU sub-assembly LH | Headlight light control ECU sub-assembly LH | Maintains the LED headlight indicator status. | - | - |
| Headlight Cleaner Signal Output (Outputs the headlight cleaner relay ON signal based on the direct line front washer switch signals, headlight cleaner switch signals, low beam illumination command from the main body ECU [multiplex network body ECU] and IG data.) |
No. 1 headlight ECU sub-assembly LH | Main body ECU (multiplex network body ECU) | Nothing | - | U0142 (No. 1 headlight ECU sub-assembly LH) |
| Entry and Start Function
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Certification ECU (smart key ECU assembly) | ECM | The previous value is maintained. | Incorrect entry and start warnings are output. | U0100 (Certification ECU [smart key ECU assembly]) |
| Wireless Function (Operates the wireless lock/unlock functions, etc.) |
Main body ECU (multiplex network body ECU) |
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Nothing |
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U0142 (Certification ECU [smart key ECU assembly]) |
| Remote Engine Start Function (Requests for the immobiliser to be unset in response to data from the remote engine start ECU.) |
Bus buffer ECU |
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Nothing | The remote engine start does not operate. | - |
| Engine Switch Lettering Illumination Control (Operates the engine switch lettering illumination in conjunction with the dome light illumination, etc.) |
Certification ECU (smart key ECU assembly) |
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U0142 (Certification ECU [smart key ECU assembly]) |
| Security Indicator Display Function (Displays the immobiliser security condition.) |
Certification ECU (smart key ECU assembly) |
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Nothing | Security condition cannot display normally (illuminates during security warning preparation/security warning). | U0142 (Certification ECU [smart key ECU assembly]) |
| Security Indicator Display Function (Displays the immobiliser security condition.) |
Certification ECU (smart key ECU assembly) | ECM | Nothing | The entry and start warnings do not operate properly.
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U0100 (Certification ECU [smart key ECU assembly]) |
| Electronic Engine Switch Control (Changes the engine switch mode and sends starter drive requests according to engine start switch operation.) |
Certification ECU (smart key ECU assembly) |
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Nothing |
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(Certification ECU [smart key ECU assembly]) |
| Clearance Sonar Setting / Notification (Controls the settings for the clearance sonar screen notifications which are set by operating the touch switches of the multi-display, displays the sonar status and plays voice warnings.) |
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(Navigation receiver assembly [EMVN ECU] / Radio and display receiver assembly [EMVN ECU]) |
| Eco Navigation Display (Displays the fuel consumption in 1 minute intervals, and displays the average fuel consumption history.) |
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(Navigation receiver assembly [EMVN ECU] / Radio and display receiver assembly [EMVN ECU]) |
| Parking Assist Control (Displays the guide lines based on the steering sensor, vehicle speed and vehicle information.) |
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(Navigation receiver assembly [EMVN ECU] / Radio and display receiver assembly [EMVN ECU]) |
| Destination Determination (Determines the destination based on the destination symbol and destination package information and selects the display language, time zone, etc.) |
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Main body ECU (multiplex network body ECU) | Determines the destination according to the last received value and operates accordingly (if there is no last received value, the system operates using the default value). | The time zone and language selection screens do not match the destination. | U0140 (Navigation receiver assembly [EMVN ECU] / Radio and display receiver assembly [EMVN ECU]) |
| Remote Service Function (Corresponds with the service center via DCM to switch to the warning screen, remote immobiliser screen and remote service user screen, and sends customer operation information.) |
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Telematics transceiver | The remote screen is turned off. | The remote screen does not display. | - |
| Vehicle Customize Function (Changes the behavior and control parameters of various functions [illumination lighting time, etc.] according to the user operation via the screen.) |
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The customize options for items related to the air conditioning amplifier assembly, main body ECU (multiplex network body ECU), certification ECU (smart key ECU assembly), front power seat switch (power seat control ECU) and the multiplex tilt and telescopic ECU are not displayed or the settings cannot be saved. | U0073 (Navigation receiver assembly [EMVN ECU] / Radio and display receiver assembly [EMVN ECU]) |
| Time Stamp Function (Matches the relative time from the main body ECU with the absolute time acquired from the GPS.) |
Main body ECU (multiplex network body ECU) | Main body ECU (multiplex network body ECU) | Nothing | - |
(Navigation receiver assembly [EMVN ECU] / Radio and display receiver assembly [EMVN ECU]) |
| Rear View Monitor Control (Rear view control displays the back camera view.) |
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ECM | Nothing | The screen does not change to the camera screen. | U0100 (Navigation receiver assembly [EMVN ECU] / Radio and display receiver assembly [EMVN ECU]) |
| Meter-linked Function (Changes display based on customization information set through the meter. Outputs the customization information set in the system.) |
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Combination meter assembly | Maintains the last valid state. | - | - |
| Steering Sensor (Detects the steering wheel angle.) |
Spiral cable with steering angle sensor |
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Data is periodically transmitted every 12 ms. | The VSC OFF indicator light turns on. | - |