Multiplex Integrated Control System Description - Functional Control (2014)
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.
| Input | Output | |
|---|---|---|
| MICU | Battery voltage (VBU) | |
| B-CAN | MICU message (Under 10 V) |
Prevention of Key Locked Inside Vehicle
The MICU controls of the door lock actuators based on inputs from each switch and B-CAN data.
| Input | Output | |
|---|---|---|
| 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) |
| B-CAN | Keyless access signal | Door lock signal (UNLOCK) |
Entry Lights Control System (Ceiling Lights, Map Lights)*
The MICU controls the interior lights based on inputs from each switch and B-CAN.
| 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 knob switch signal (LOCK) Interior light cut signal |
Interior lights |
| B-CAN | Keyless signal Keyless access key signal |
|
| *: 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. | ||
Door Courtesy Light
The MICU controls the front door courtesy lights based on inputs from the door switches.
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply Driver's door switch Front passenger's door switch Interior light cut signal |
Front door courtesy lights |
| Input | Output | |
|---|---|---|
| B-CAN |
Trunk Light
The MICU controls the trunk light based on inputs from each switch.
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply Trunk lid latch switch Interior light cut signal |
Trunk light |
| B-CAN |
Interior Lights Auto-Off Timer (Ceiling Lights, Map Lights)
The MICU controls the interior lights OFF based on inputs from each switch and B-CAN data.
| 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 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 |
| B-CAN | Keyless signal Door lock signal Keyless access key signal |
Collision Detection Signal (CDS)
The MICU controls the door lock actuators based on inputs from power switch and B-CAN data.
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply | Door lock actuators (UNLOCK) Driver's door lock actuator (UNLOCK) |
| B-CAN | CDS signals | Door lock signal (UNLOCK) |
Power Door Locks*
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
| 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/UNLOCK) Front passenger's door lock switch signal (LOCK/UNLOCK) |
Door lock actuators (LOCK/UNLOCK) Driver's door lock actuator (UNLOCK) |
| B-CAN | Keyless access key signal | Door lock signal (LOCK/UNLOCK) |
| *: 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. | ||
Door Lock Response Operation
The MICU controls the door lock actuators based on door lock signal sent by B-CAN data.
| Input | Output | |
|---|---|---|
| MICU | Door lock actuators (LOCK/UNLOCK) Driver's door lock actuator (UNLOCK) |
|
| B-CAN | Door lock signal | Door lock signal (LOCK/UNLOCK) |
Door Lock (Trunk) Response Operation
The MICU controls the trunk lid release actuator based on B-CAN data.
| Input | Output | |
|---|---|---|
| MICU | Trunk lid opener main switch | Trunk lid release actuator |
| B-CAN | Vehicle speed pulse signal Door lock signal |
Auto Power Door Locks (LOCK Operation)*
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
| Input | Output | |
|---|---|---|
| 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) |
| B-CAN | Vehicle speed pulse signal Engine speed pulse signal Leady to drive signal |
Door lock signal (LOCK) |
| *: 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. | ||
Auto Power Door Locks (UNLOCK Operation)*
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply Transmission range switch (P position) ACCESSORY (ACC) power supply Driver's door switch 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) 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) |
| B-CAN | Vehicle speed pulse signal | Door lock signal (UNLOCK) |
| *: 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. | ||
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.
| Input | Output | |
|---|---|---|
| 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 Leady to drive signal |
Door lock signal (LOCK) Door lock signal (UNLOCK) MICU message (TURNLRLY) MICU message (TURNRRLY) |
Keyless Entry System (Door Lock)
The MICU controls the door lock actuators based on inputs from each switch and B-CAN data.
| 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) |
| B-CAN | Keyless signal Keyless access key signal |
Door lock signal (LOCK/UNLOCK) Relock signal (RELOCK) |
Keyless Entry System (Trunk)
The MICU controls the trunk lid release actuator based on inputs from each switch and B-CAN data.
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply Key switch signal Trunk lid opener main switch |
Trunk lid release actuator |
| B-CAN | Vehicle speed pulse signal Keyless signal Keyless access key signal |
Keyless PANIC Operation
The MICU controls the keyless PANIC operation based on keyless signal sent by B-CAN.
| Input | Output | |
|---|---|---|
| MICU | Headlights (low beam) Parking lights Side marker lights Taillights License plate lights Horn relay |
|
| B-CAN | PANIC signal (PANIC) PANIC signal (H/L LO) PANIC signal (PARKING LIGHT) PANIC signal (HORN) |
Security Alarm System
The MICU controls the lighting system and the horn based on inputs from each switch and B-CAN data.
| 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 |
| B-CAN | Keyless signal Door lock signal Keyless access key signal |
MICU message (SET1) MICU message (SET2) ALARM message (ACTION) ALARM message (HORN) ALARM message (H/L LOW) ALARM message (PARKING LIGHT) ALARM message (CYCLE) |
Security Answer Back*
The MICU controls the lighting system and the horn based on keyless signal sent by B-CAN.
| Input | Output | |
|---|---|---|
| MICU | Door lock actuator signal (LOCK/UNLOCK) | Parking lights Side marker lights Taillights License plate lights Horn relay Keyless buzzer |
| B-CAN | Keyless signal | |
| *: 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. | ||
Answer Back Response Operation (Headlight (low beam), Parking lights, Taillights, Horns)
The MICU controls the lighting system and the horn based on keyless signal sent by B-CAN.
| Input | Output | |
|---|---|---|
| MICU | Headlights (low beam) Parking lights Side marker lights Taillights License plate lights Horn relay |
|
| B-CAN | Answer back signal (H/L LOW) Answer back signal (PARKING LIGHT) Answer back signal (HORN) |
Answer Back Response Operation (Keyless Buzzer)
The MICU controls the keyless buzzer based on inputs from the answer back signals.
| Input | Output | |
|---|---|---|
| MICU | Keyless buzzer | |
| B-CAN | Answer back signal (BUZZER) |
Combination Light Switch
The MICU controls the lighting system based on inputs from the combination light switch.
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply Combination light switch (OFF) Combination light switch (PARKING) Combination light switch (ON) Combination light switch (DIMMER) Combination light switch (PASSING) |
|
| B-CAN | 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) |
Exterior Lights
The MICU controls the exterior lights based on combination light switch inputs sent by B-CAN data.
| 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 |
| B-CAN | Relay module message (PARKINGRLY) Relay module message (HLLORLY) Relay module message (HLHIRLY) Relay module message (ILL SML) |
LED Headlight Failure Detection
The MICU controls the LED headlight based on inputs from each switch and B-CAN data.
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply Combination light switch signal (HLLO) |
|
| B-CAN | IG1 meter signal | Relay module message (LEDWRN) Relay module message (LEDWRNIND) |
Automatic Lighting System
The MICU controls the automatic lighting system based on inputs from power switch and B-CAN data.
| Input | Output | |
|---|---|---|
| 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 |
| 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) |
Headlight Auto OFF Function*
The MICU controls the lighting system based on inputs from each switch.
| 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) Combination light switch signal (HLLO) |
Headlights (low/high beam) Parking lights Side maker lights Taillights License plate lights |
| 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) |
| *: 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. | ||
Daytime Running Lights
The MICU controls the headlights daytime running light system based on inputs from each switch and B-CAN data.
| 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) |
| 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) |
Relay module message (DRLKC) |
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.
| Input | Output | |
|---|---|---|
| MICU | IG2 power supply Combination light switch signal (HLAUTO) Combination light switch signal (HLLO) |
Headlights (high beam) |
| B-CAN | IG1 meter signal Parking brake switch signal Automatic lighting signal (ALHLLO) Automatic lighting signal (ALOFFHLLO) |
Relay module message (DRLKC) |
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.
| Input | Output | |
|---|---|---|
| MICU | IG1 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) Combination light switch signal (TURNRSW) Combination light switch signal (TURNLSW) |
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) |
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 and LO) Windshield wiper switch (HI and LO) Windshield wiper switch (MIST) Windshield washer switch intermittent dwell time controller |
|
| 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) |
| B-CAN | IG1 meter signal Parking brake switch Vehicle speed pulse signal |
Relay module message (FRWIPAS) |
| *: 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) | |
| *: 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. | ||
Power Window Relay
The MICU controls the power window key-off operation based on inputs from power 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) |
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) |