MICU
Power Supply Voltage Monitoring Function
The MICU monitors the power supply voltage (backup voltage). If the voltage drops below 10 V, the MICU does not store DTCs.
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Input |
Output |
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MICU |
Battery voltage (VBU) |
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B-CAN |
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MICU message (Under 10 V) | |
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Prevention of Key Locked Inside Vehicle
The MICU controls of the door lock actuators based on inputs from each switch and B-CAN data.
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Input |
Output |
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MICU |
Key switch signal
Driver's door switch
Driver's door lock knob switch signal (UNLOCK) |
Door lock actuators (UNLOCK)
Driver's door lock actuator (UNLOCK) |
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B-CAN |
Keyless access signal |
Door lock signal (UNLOCK) | |
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Entry Lights Control System (Ceiling Lights, Ignition Key Light, Map Lights)*
The MICU controls the interior lights based on inputs from each switch and B-CAN.
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Input |
Output |
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MICU |
IG1 power supply
Key switch signal
Driver's door switch
Front passenger's door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver's door lock knob switch signal (LOCK)
Interior light cut signal |
Interior lights
Ignition key light |
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B-CAN |
Keyless signal
Keyless access key signal |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Door Courtesy Light
The MICU controls the door courtesy lights based on inputs from the door switches.
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Input |
Output |
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MICU |
IG1 power supply
Driver's door switch
Front passenger's door switch
Left rear door switch
Right rear door switch
Interior light cut signal |
Door courtesy lights |
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B-CAN |
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Trunk Light
The MICU controls the trunk light based on inputs from each switch.
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Input |
Output |
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MICU |
IG1 power supply
Trunk lid latch switch
Interior light cut signal |
Trunk light |
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B-CAN |
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Interior Lights Auto-Off Timer (Ceiling Lights, Ignition Key Light, Map Lights)*
The MICU controls the interior lights OFF based on inputs from each switch and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply
Key switch signal
Driver's door switch
Front passenger's door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver's door key cylinder switch signal (LOCK/UNLOCK)
Driver's door lock knob switch signal (LOCK/UNLOCK)
Front passenger's door lock knob switch signal (UNLOCK)
Left rear door lock knob switch signal (UNLOCK)
Right rear door lock knob switch signal (UNLOCK) |
Interior lights |
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B-CAN |
Keyless signal
Door lock signal
Keyless access key signal |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Collision Detection Signal (CDS)
The MICU controls the door lock actuators based on inputs from ignition switch (IG1) and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply |
Door lock actuators (UNLOCK)
Driver's door lock actuator (UNLOCK) |
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B-CAN |
CDS signals |
Door lock signal (UNLOCK) | |
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Power Door Locks*
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply
Key switch signal
Driver's door switch
Front passenger's door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver's door lock switch signal (LOCK/UNLOCK)
Driver's door key cylinder switch signal (LOCK/UNLOCK)
Driver's door lock knob switch signal (LOCK/UNLOCK)
Front passenger's door lock switch signal (LOCK/UNLOCK) |
Door lock actuators (LOCK/UNLOCK)
Driver's door lock actuator (UNLOCK) |
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B-CAN |
Keyless access key signal |
Door lock signal (LOCK/UNLOCK) | |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Door Lock Response Operation
The MICU controls the door lock actuators based on door lock signal sent by B-CAN data.
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Input |
Output |
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MICU |
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Door lock actuators (LOCK/UNLOCK)
Driver's door lock actuator (UNLOCK) |
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B-CAN |
Door lock signal |
Door lock signal (LOCK/UNLOCK) | |
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Door Lock (Trunk) Response Operation
The MICU controls the trunk lid release actuator based on B-CAN data.
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Input |
Output |
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MICU |
Trunk lid opener main switch |
Trunk lid release actuator |
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B-CAN |
Vehicle speed pulse signal
Door lock signal |
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Auto Power Door Locks (LOCK Operation)*
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply
Transmission range switch (P position)
Driver's door switch
Front passenger's door switch
Left rear door switch
Right rear door switch
Brake pedal position switch
Trunk lid latch switch
Driver's door lock knob switch signal (UNLOCK)
Front passenger's door lock knob switch signal (UNLOCK)
Left rear door lock knob switch signal (UNLOCK)
Right rear door lock knob switch signal (UNLOCK) |
Door lock actuators (LOCK) |
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B-CAN |
Vehicle speed pulse signal
Engine speed pulse signal |
Door lock signal (LOCK) | |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Auto Power Door Locks (UNLOCK Operation)*
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply
Transmission range switch (P position)
ACCESSORY (ACC) power supply
Driver's door switch
Driver's door lock knob switch signal (UNLOCK)
Front passenger's door lock knob switch signal (UNLOCK)
Left rear door lock knob switch signal (UNLOCK)
Right rear door lock knob switch signal (UNLOCK)
Driver's door lock switch signal (LOCK/UNLOCK)
Front passenger's door lock switch signal (LOCK/UNLOCK)
Driver's door key cylinder switch signal (UNLOCK) |
Door lock actuators (UNLOCK)
Driver's door lock actuator (UNLOCK) |
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B-CAN |
Vehicle speed pulse signal |
Door lock signal (UNLOCK) | |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Auto Power Door Locks (LOCK/UNLOCK Switching Function)
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply
Transmission range switch (P position)
Driver's door switch
Driver's door lock switch signal (LOCK/UNLOCK) |
Door lock actuators (LOCK/UNLOCK)
Driver's door lock actuator (UNLOCK)
Turn signal lights (left/right) |
|
B-CAN |
Engine speed pulse signal
FOB ID data
Customized mode data
Customized data
Diagnosis data |
Door lock signal (LOCK)
Door lock signal (UNLOCK)
MICU message (TURNLRLY)
MICU message (TURNRRLY) | |
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Keyless Entry System (Door Lock)*
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
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Input |
Output |
|
MICU |
IG1 power supply
Key switch signal
Driver's door switch
Front passenger's door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver's door lock switch signal (LOCK/UNLOCK)
Driver's door key cylinder switch signal (LOCK/UNLOCK)
Driver's door lock knob switch signal (LOCK)
Front passenger's door lock switch signal (LOCK/UNLOCK) |
Door lock actuators (LOCK/UNLOCK)
Driver's door lock actuator (UNLOCK) |
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B-CAN |
Keyless signal
Keyless access key signal |
Door lock signal (LOCK/UNLOCK)
Relock signal (RELOCK) | |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Keyless Entry System (Trunk)
The MICU controls the trunk lid release actuator based on inputs from each switch and B-CAN data.
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Input |
Output |
|
MICU |
IG1 power supply
Key switch signal
Trunk lid opener main switch |
Trunk lid release actuator |
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B-CAN |
Vehicle speed pulse signal
Keyless signal
Keyless access key signal |
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Keyless PANIC Operation
The MICU controls the keyless PANIC operation based on keyless signal sent by B-CAN.
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Input |
Output |
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MICU |
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Headlights (low beam)
Parking lights
Side marker lights
Taillights
License plate lights
Horn relay |
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B-CAN |
PANIC signal (PANIC)
PANIC signal (H/L LO)
PANIC signal (PARKING LIGHT)
PANIC signal (HORN) |
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Security Alarm System*
The MICU controls the lighting system and the horn based on inputs from each switch and B-CAN data.
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Input |
Output |
|
MICU |
IG1 power supply
Key switch signal
Audio switch
Driver's door switch
Front passenger's door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver's door key cylinder switch signal (LOCK/UNLOCK)
Driver's door lock knob switch signal (UNLOCK)
Front passenger's door lock knob switch signal (UNLOCK)
Left rear door lock knob switch signal (UNLOCK)
Right rear door lock knob switch signal (UNLOCK)
Security hood switch |
Headlights (low beam)
Parking lights
Side marker lights
Taillights
License plate lights
Horn relay |
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B-CAN |
Keyless signal
Door lock signal
Keyless access key signal
Engine remote start signal (YOPENGSTON) |
MICU message (SET1)
MICU message (SET2)
ALARM message (ACTION)
ALARM message (HORN)
ALARM message (H/L LOW)
ALARM message (PARKING LIGHT)
ALARM message (CYCLE) | |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Security Answer Back*
The MICU controls the lighting system and the horn based on keyless signal sent by B-CAN.
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Input |
Output |
|
MICU |
Door lock actuator signal (LOCK/UNLOCK) |
Turn signal lights (left/right)
Keyless buzzer |
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B-CAN |
Keyless signal |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Answer Back Response Operation (Headlights (low beam), Parking lights, Taillights, Horns)
The MICU controls the lighting system and the horn based on keyless signal sent by B-CAN.
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Input |
Output |
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MICU |
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Headlights (low beam)
Parking lights
Side marker lights
Taillights
License plate lights
Horn relay |
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B-CAN |
Answer back signal (H/L LOW)
Answer back signal (PARKING LIGHT)
Answer back signal (HORN) |
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Answer Back Response Operation (Hazard warning lights)
The MICU controls the hazard warning lights based on keyless signal sent by B-CAN.
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Input |
Output |
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MICU |
IG1 power supply |
Turn signal lights (left/right) |
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B-CAN |
Vehicle speed pulse signal
Answer back signal (HAZARD) |
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Answer Back Response Operation (Keyless Buzzer)
The MICU controls the keyless buzzer based on inputs from the answer back signals.
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Input |
Output |
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MICU |
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Keyless buzzer |
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B-CAN |
Answer back signal (BUZZER) |
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Combination Light Switch
The MICU controls the lighting system based on inputs from the combination light switch.
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Input |
Output |
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MICU |
IG1 power supply
Combination light switch (OFF)
Combination light switch (PARKING)
Combination light switch (ON)
Combination light switch (DIMMER)
Combination light switch (PASSING) |
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B-CAN |
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Combination light switch signal (PARKING)
Combination light switch signal (HLLO)
Combination light switch signal (HLAUTO)
Combination light switch signal (HLHI)
Combination light switch signal (PASS) | |
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Exterior Lights
The MICU controls the exterior lights based on combination light switch inputs sent by B-CAN data.
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Input |
Output |
|
MICU |
IG1 power supply
Combination light switch signal (PARKING)
Combination light switch signal (HLLO)
Combination light switch signal (HLAUTO)
Combination light switch signal (HLHI) |
Headlights (low/high beam)
Parking lights
Side marker lights
Taillights
License plate lights |
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B-CAN |
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Relay module message (PARKINGRLY )
Relay module message (HLLORLY )
Relay module message (HLHIRLY)
Relay module message (ILL SML) | |
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LED Headlight Failure Detection
The MICU controls the LED headlight based on inputs from each switch and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply
Combination light switch signal (HLLO) |
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B-CAN |
IG1 meter signal |
Relay module message (LEDWRN)
Relay module message (LEDWRNIND) | |
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Automatic Lighting System
The MICU controls the automatic lighting system based on inputs from ignition switch (IG1) and B-CAN data.
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Input |
Output |
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MICU |
IG1 power supply
Combination light switch signal (HLHI)
Combination light switch signal (HLAUTO) |
Headlights (low/high beam)
Parking lights
Side maker lights
Taillights
License plate lights |
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B-CAN |
IG1 meter signal
Automatic lighting signal (ALPARKING)
Automatic lighting signal (ALHLLO)
Automatic lighting signal (ALOFFPARKING)
Automatic lighting signal (ALOFFHLLO) |
Relay module message (PARKINGRLY)
Relay module message (HLLORLY)
Relay module message (HLHIRLY)
Relay module message (ILL SML) | |
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Headlight Auto OFF Function*
The MICU controls the lighting system based on inputs from each switch.
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Input |
Output |
|
MICU |
IG1 power supply
Key switch signal
Driver's door switch
Driver's door lock knob switch signal (LOCK)
Combination light switch signal (PARKING)
Combination light switch signal (HLAUTO)
Combination light switch signal (HLHI) |
Headlights (low/high beam)
Parking lights
Side maker lights
Taillights
License plate lights |
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B-CAN |
IG1 meter signal
Keyless access key signal
Automatic lighting signal (ALOFFPARKING)
Automatic lighting signal (ALOFFHLLO) |
Relay module message (PARKINGRLY)
Relay module message (HLLORLY)
Relay module message (HLHIRLY)
Relay module message (ILL SML) | |
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Daytime Running Lights
The MICU controls the headlights daytime running light system based on inputs from each switch and B-CAN data.
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Input |
Output |
|
MICU |
IG2 power supply
Combination light switch signal (HLAUTO)
Combination light switch signal (HLLO)
Combination light switch signal (PARKING)
Combination light switch signal (PASS) |
Headlights (high beam) |
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B-CAN |
IG1 meter signal
Parking brake switch signal
Automatic lighting signal (ALPARKING)
Automatic lighting signal (ALHLLO)
Automatic lighting signal (ALOFFPARKING)
Automatic lighting signal (ALOFFHLLO)
Engine remote start signal (YOPENGSTON) |
Relay module message (DRLKC) | |
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Daytime Running Lights (high beam) for USA Dimming Function
The MICU controls the headlights high beam based on inputs from each switch and B-CAN data.
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Input |
Output |
|
MICU |
IG2 power supply
Combination light switch signal (HLAUTO)
Combination light switch signal (HLLO) |
Headlights (high beam) |
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B-CAN |
IG1 meter signal
Parking brake switch signal
Automatic lighting signal (ALHLLO)
Automatic lighting signal (ALOFFHLLO)
Engine remote start signal (YOPENGSTON) |
Relay module message (DRLKC) | |
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Fog Lights
The MICU controls the fog lights based on inputs from combination light switch.
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Input |
Output |
|
MICU |
Fog light switch
Combination light switch signal (HLLO)
Combination light switch signal (PARKING)
Combination light switch signal (HLAUTO) |
Fog light relay |
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B-CAN |
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Relay module message (FRFOGRLY) | |
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Turn Signal/Hazard Warning Lights
The MICU controls the turn signal/hazard warning lights based on inputs from each switch and the hazard warning switch.
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Input |
Output |
|
MICU |
IG1 power supply
Turn signal switch (left/right)
Hazard warning switch |
Turn signal lights (left/right) |
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B-CAN |
|
MICU message (TURNLRLY)
MICU message (TURNRRLY)
MICU message (HAZARDSW)
Combination light switch signal (TURNRSW)
Combination light switch signal (TURNLSW) | |
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One-Push Turn Signals
The MICU controls the turn signal lights based on inputs from combination light switch.
| |
Input |
Output |
|
MICU |
IG power supply
Turn signal switch (left/right)
Hazard warning switch |
Turn signal lights (left/right) |
|
B-CAN |
|
MICU message (TURNLRLY)
MICU message (TURNRRLY)
MICU message (HAZARDSW)
MICU message (TURN L ONETOUCH)
MICU message (TURN R ONETOUCH) | |
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Windshield Wiper Switch
The MICU controls the wiper system based on inputs from each switch.
| |
Input |
Output |
|
MICU |
IG1 power supply
Windshield wiper switch (INT & LO)
Windshield wiper switch (HI & LO)
Windshield wiper switch (MIST)
Windshield washer switch intermittent dwell time controller |
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|
B-CAN |
|
Windshield wiper switch signal (INT)
Windshield wiper switch signal (WIPLO)
Windshield wiper switch signal (WIPHI)
Windshield wiper switch signal (WIPMIST)
Windshield wiper switch signal (INTVR) | |
|
Windshield Wiper*
The MICU controls the windshield wiper based on inputs from each switch and B-CAN data.
| |
Input |
Output |
|
MICU |
IG1 power supply
Windshield wiper switch signal (INT)
Windshield wiper switch signal (WIPHI)
Windshield wiper switch signal (WIPLO)
Windshield wiper switch signal (MIST)
Windshield wiper switch signal (INTVR)
Windshield wiper switch (AUTO STOP)
Windshield washer switch signal
Transmission range switch (P position)
Brake pedal position switch |
Windshield wiper relay (INT)
Windshield wiper relay (HIGH/LOW) |
|
B-CAN |
IG1 meter signal
Parking brake switch
Vehicle speed pulse signal |
Relay module message (FRWIPAS) | |
|
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
|
Washer Operation*
The MICU controls the windshield washer motor based on inputs from each switch.
| |
Input |
Output |
|
MICU |
IG1 power supply
Windshield washer switch |
Windshield washer motor |
|
B-CAN |
|
Windshield washer motor message (FRWASHRLY) | |
|
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*: This system can be customized in the multi-information display (MID) to suit the customer needs. For more information about customizing options, refer to the Owner's Manual. | |
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Power Window Relay
The MICU controls the power window key-off operation based on inputs from ignition switch and B-CAN data.
| |
Input |
Output |
|
MICU |
IG1 power supply |
Power window relay |
|
B-CAN |
Power window signal (PWRLY)
Power window signal (TIMER)
Power window signal (TIMERVALUE)
Engine remote start signal (YOPENGSTON) |
| |
|
Power Window Timer (Key-Off Operation)
The MICU controls the power window key-off operation based on inputs from each switch.
| |
Input |
Output |
|
MICU |
IG1 power supply
Driver's door switch
Front passenger's door switch |
Power window timer |
|
B-CAN |
|
| |
|
Key Interlock
The MICU controls the key interlock solenoid based on inputs from each switch.
| |
Input |
Output |
|
MICU |
ACCESSORY power supply
Transmission range switch (P position)
Park pin switch |
Key interlock solenoid |
|
B-CAN |
|
| |
|
A/C Pressure Sensor
The MICU controls the A/C pressure switch signal based on inputs from each switch.
| |
Input |
Output |
|
MICU |
IG1 power supply
A/C pressure sensor |
|
|
B-CAN |
|
Relay module message (ACPRESW) | |
|
Rear Window Defogger Switch
The MICU controls the rear window defogger signal based on inputs from each switch.
| |
Input |
Output |
|
MICU |
IG1 power supply
Rear window defogger switch |
|
|
B-CAN |
|
MICU message (RRDEFSW) | |
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Blower Motor Voltage UP Request
The MICU controls the blower motor voltage based on inputs from each switch.
| |
Input |
Output |
|
MICU |
IG1 power supply
Rear window defogger switch |
|
|
B-CAN |
|
MICU message (BLW ACG REQ) | |
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