Toyota CH-R Service Manual: System Description

SYSTEM DESCRIPTION

INPUT AND OUTPUT SIGNALS OF COMBINATION METER ASSEMBLY

(a) Meter or Gauge

Item

Condition

Input/Output

Communication line

Signal

Component

Speedometer

Gauge

Input

CAN

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

-

Input

Direct line

Vehicle speed input pulse signal

Output

CAN

Vehicle speed signal (meter to other)

Related ECUs

Speed tolerance A signal

Speed tolerance B signal

Direct line

Vehicle speed pulse output signal

Tachometer

Gauge

Input

CAN

Engine RPM data signal

ECM

Fuel receiver gauge

Gauge

Input

CAN

Starter signal

ECM

Shift position P signal

Shift position N signal

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Vehicle speed input pulse signal

Parking brake SW signal

Main body ECU (Multiplex network body ECU)

Direct line

Fuel level signal

Fuel sender gauge assembly

Engine coolant temperature receiver gauge

Gauge

Input

CAN

Water temperature signal

ECM

(b) Warning or Indicator

Item

Condition

Input/Output

Communication line

Signal

Component

Door open warning light

Comes on

Input

CAN

Driver door courtesy switch signal

Main body ECU (Multiplex network body ECU)

Front passenger door courtesy switch signal

Rear right side courtesy switch signal

Rear left side courtesy switch signal

Back door courtesy switch signal

Brake warning light

Comes on

Input

CAN

Brake warning light signal

Skid control ECU (Brake actuator assembly)

Direct line

Vacuum SW signal

Vacuum warning switch assembly

Driver or front passenger seat belt warning light

Comes on/Blinks

Input

CAN

Driver seat belt buckle switch signal

Main body ECU (Multiplex network body ECU)

Parking brake switch signal

Shift position P signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

CAN

Front passenger seat occupant detection status signal

Airbag sensor assembly

Front passenger seat belt buckle switch detection status signal

SRS warning light

Comes on

Input

CAN

Airbag warning light control request signal

Airbag sensor assembly

Test mode signal

ECM

EPS warning light

Comes on/Blinks

Input

CAN

EPS warning light request signal

Power steering ECU assembly

EPB indicator light

Comes on

Input

CAN

EPB indicator light signal

Skid control ECU (Brake actuator assembly)

MIL (Check engine warning light)

Comes on/Blinks

Input

CAN

MIL request signal

ECM

Slip indicator light

Comes on/Blinks

Input

CAN

Slip indicator signal

Skid control ECU (Brake actuator assembly)

VSC control existence flag signal

VSC OFF indicator light

Comes on

Input

CAN

VSC OFF light signal

Skid control ECU (Brake actuator assembly)

ABS warning light

Comes on/Blinks

Input

CAN

ABS warning light control flag signal

Skid control ECU (Brake actuator assembly)

EPB warning light

Comes on

Input

CAN

EPB warning light signal

Skid control ECU (Brake actuator assembly)

Tire pressure warning light

Comes on/Blinks

Input

CAN

TPMS warning indicator signal

Tire pressure warning and ECU receiver

Fuel level warning light

Comes on

Input

Direct line

Fuel level signal

Fuel sender gauge assembly

Automatic high beam indicator light*1

Comes on

Input

CAN

Smart Beam indicator signal

Main body ECU (Multiplex network body ECU)

High beam indicator light

Comes on

Input

CAN

High beam headlight request signal

Main body ECU (Multiplex network body ECU)

Tail indicator light*2

Comes on

Input

CAN

Taillight request signal

Main body ECU (Multiplex network body ECU)

Headlight indicator light*3

Comes on

Input

CAN

Low beam headlight request signal

Main body ECU (Multiplex network body ECU)

Front fog indicator light*4

Comes on

Input

CAN

Front fog light request signal

Main body ECU (Multiplex network body ECU)

Turn indicator light

Blinks

Input

Direct line

LH turn signal switch signal

Windshield wiper switch assembly

RH turn signal switch signal

Hazard warning switch signal

Hazard warning signal switch

CAN

Flasher request signal

Main body ECU (Multiplex network body ECU)

-

Output

CAN

Turn light state signal

Forward recognition camera*1

Headlight ECU sub-assembly LH*5

Blind spot monitor sensor LH*6

Millimeter wave radar sensor assembly*1

Hazard switch state signal

Skid control ECU (Brake actuator assembly)

Direct line

LH turn signal switch signal

Each turn signal light

RH turn signal switch signal

Hazard warning switch signal

PCS warning light*1

Comes on

Input

CAN

PCS OFF status for soft switch signal

Millimeter Wave Radar Sensor Assembly

BSM indicator light*6

Comes on

Input

CAN

BSM main switch signal

Blind spot monitor sensor LH

RCTA indicator light*6

Comes on

Input

CAN

RCTA system status signal

Blind spot monitor sensor LH

RCTA main switch signal

  • *1: w/ Toyota Safety Sense P
  • *2: w/ TAIL Indicator
  • *3: w/ HEAD Indicator
  • *4: w/ Front Fog Light
  • *5: for LED Headlight
  • *6: w/ Blind Spot Monitor System

(c) Multi-information Display

Item

Condition

Input/Output

Communication line

Signal

Component

Opening

-

-

-

-

-

Ending

-

-

-

-

-

ODO meter

Displayed

Input

CAN

Vehicle speed pulse signal integrated value signal

Skid control ECU (Brake actuator assembly)

Vehicle speed (SP1) signal

Direct line

ODO/TRIP change switch signal

Trip switch

-

Output

CAN

Odo meter unit signal

Related ECUs

Odo meter signal

TRIP meter

Displayed

Input

CAN

Vehicle speed pulse signal integrated value signal

Skid control ECU (Brake actuator assembly)

Vehicle speed (SP1) signal

Direct line

ODO/TRIP change switch signal

Trip switch

Instantaneous fuel consumption

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Fuel consumption signal

ECM

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

CAN

Drive monitor unit signal

Related ECUs

Total average fuel consumption

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Fuel consumption signal

ECM

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

After start average fuel consumption

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Fuel consumption signal

ECM

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

After refuel average fuel consumption

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Fuel consumption signal

ECM

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

Total average vehicle speed

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

After start average speed

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

After start mileage

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

Total running time

Displayed

Input

CAN

Engine RPM signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

After start running time

Displayed

Input

CAN

Engine RPM signal

ECM

Cruising range

Displayed

Input

CAN

Engine type information signal

ECM

Engine RPM signal

ECM

Fuel consumption signal

ECM

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

-

Output

Direct line

Vehicle speed input pulse signal

Related ECUs

Gear position

Displayed

Input

CAN

Shift position P signal

ECM

Shift position R signal

Shift position N signal

Shift position D signal

Shift position B signal

Shift gear signal

ADJUSTING LDA CAMERA*1

Displayed

Input

CAN

Camera adjustment mode text display signal

Millimeter Wave Radar Sensor Assembly

ADJUSTING FRONT RADAR BEAM*1

Displayed

Input

CAN

Inspection mode for ACC signal

Millimeter Wave Radar Sensor Assembly

ADJUSTING FRONT RADAR BEAM ERROR*1

Displayed

Input

CAN

FRD adjustment signal

Millimeter Wave Radar Sensor Assembly

ADJUSTING FRONT RADAR BEAM ALONG VERTICAL AXIS*1

Displayed

Input

CAN

FRD adjustment signal

Millimeter Wave Radar Sensor Assembly

ADJUSTING FRONT RADAR BEAM ALONG HORIZONTAL AXIS*1

Displayed

Input

CAN

FRD adjustment signal

Millimeter Wave Radar Sensor Assembly

CHECKING CRUISE CONTROL BRAKE*1

Displayed

Input

CAN

Inspection mode for ACC signal

Millimeter Wave Radar Sensor Assembly

CHECKING PRE-CRASH BRAKE*1

Displayed

Input

CAN

Inspection mode signal

Millimeter Wave Radar Sensor Assembly

BRAKE!*1

Displayed

Input

CAN

PCS warning message signal

Millimeter Wave Radar Sensor Assembly

Push and Hold ENGINE Switch for Emergency Stop*2

Displayed

Input

CAN

Smart key system warning request signal

Certification ECU (smart key ECU assembly)

Shift to N Position & Push ENGINE Switch to Restart*2

Displayed

Input

CAN

Smart key system warning request signal

Certification ECU (smart key ECU assembly)

Engine Stopped. Shift to P Position*2

Displayed

Input

CAN

Smart key system warning request signal

Certification ECU (smart key ECU assembly)

Engine Stopped. Stop in a Safe Place.*2

Displayed

Input

CAN

Smart key system warning request signal

Certification ECU (smart key ECU assembly)

Braking Power Low. Stop in a Safe Place, See Owner's Manual.

Displayed

Input

CAN

Brake warning light signal

Skid control ECU (Brake actuator assembly)

Direct line

Brake oil level warning switch signal

Brake fluid level warning switch

Shift to P Before Exiting Vehicle*2

Displayed

Input

CAN

Smart key system warning request signal

Certification ECU (smart key ECU assembly)

Auto Power Off to Conserve Battery.*2

Displayed

Input

CAN

Smart key system warning 2 signal

Certification ECU (smart key ECU assembly)

Power Steering Malfunction. Steering Power Low. Visit Your Dealer.

Displayed

Input

CAN

Multi-information display request signal

Power steering ECU assembly

Abnormal Voltage. Steering Power Low. Visit Your Dealer.

Displayed

Input

CAN

Multi-information display request signal

Power steering ECU assembly

Power Steering Malfunction. Visit Your Dealer.

Displayed

Input

CAN

Multi-information display request signal

Power steering ECU assembly

EPB Applied.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Vehicle May Roll Out. Shift to P.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Brake Hold Fault. Depress Brake to Deactivate. Visit Your Dealer.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Brake Hold Warning. Depress Brake on Slope.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

EPB Activation Incomplete.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Key Not Detected, Check Key Location.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

EPB Release Unavailable, Depress Brake Pedal

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Release Accelerator.

Displayed

Input

CAN

Drive-Start Control Multi Information Request signal

ECM

LDA. Driver Attention Required.*1

Displayed

Input

CAN

Request for driver action display signal

Forward recognition camera

LDA. Hold Steering Wheel.*1

Displayed

Input

CAN

Hands-free caution text display signal

Forward recognition camera

LDA Steering Assist Unavailable, Hold Steering Wheel.*1

Displayed

Input

CAN

Hands-free caution text display signal

Forward recognition camera

EPB Frequently Operated, Wait a Minute.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Check Engine. Visit Your Dealer.

Displayed

Input

CAN

MIL request signal

ECM

ENG Display ID signal

Check Engine. Reduced Engine Power. Visit Your Dealer.

Displayed

Input

CAN

Engine malfunction massage signal

ECM

Reduced Engine Power. Visit Your Dealer.

Displayed

Input

CAN

Engine malfunction massage signal

ECM

Engine Maintenance Required. Visit Your Dealer.

Displayed

Input

CAN

Engine malfunction massage signal

ECM

Engine Stopped. Shift to P

Displayed

Input

CAN

engine stall massage signal

ECM

Engine Stopped. Shift to N

Displayed

Input

CAN

engine stall massage signal

ECM

Firmly Depress The Brake & Then Start Engine.

Displayed

Input

CAN

engine stall massage signal

ECM

Depress Brake and Then Start Engine.

Displayed

Input

CAN

engine stall massage signal

ECM

Antilock Brake System Malfunction. Visit Your Dealer.

Displayed

Input

CAN

ABS warning light control flag signal

Skid control ECU (Brake actuator assembly)

Engine Coolant Temperature High. Stop in a Safe Place. See Owner's Manual.

Displayed

Input

CAN

Water temperature signal

ECM

Vehicle May Roll Out. Park The Vehicle on Flat Road.

Displayed

Input

CAN

EPB multi information display signal

Skid control ECU (Brake actuator assembly)

Charging System Malfunction. Stop in a Safe Place. See Owner's Manual.

Displayed

Input

CAN

Charge light indicator signal

ECM

Clean Radar Sensor.*1

Displayed

Input

CAN

ACC display ID signal

ECM

Cruise Control unavailable.*1

Displayed

Input

CAN

ACC display ID signal

ECM

Cruise Control Unavailable. Depress The Brake Pedal.*1

Displayed

Input

CAN

ACC display ID signal

ECM

Cruise Control Off. Shifted to P Position. Depress The Brake Pedal and Shift to D to Restart.*1

Displayed

Input

CAN

ACC display ID signal

ECM

LDA Unavailable.*1

Displayed

Input

CAN

Temporary unusable condition text display signal

Forward recognition camera

Entry & Start System Malfunction. See Owner's Manual.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Blind Spot Monitor Unavailable.*3

Displayed

Input

CAN

BSM module status signal

Blind spot monitor sensor LH

Check Cruise Control System. Visit Your Dealer.*4

Displayed

Input

CAN

ACC display ID signal

ECM

Check Cruise Control System. Depress The Brake Pedal. Visit Your Dealer.*1

Displayed

Input

CAN

ACC display ID signal

ECM

Lane Departure Alert Malfunction. Visit Your Dealer.*1

Displayed

Input

CAN

Fault condition text display signal

Forward recognition camera

Front Camera Unavailable.*1

Displayed

Input

CAN

PCS TEMP message (Camera) signal

Millimeter Wave Radar Sensor Assembly

LDA ON. Steering Assist Active.*1

Displayed

Input

CAN

LKA mode text display signal

Forward recognition camera

LDA ON. Steering Assist Inactive.*1

Displayed

Input

CAN

LKA mode text display signal

Forward recognition camera

Front Camera Vision Blocked. Clean and Demist Windshield.*1

Displayed

Input

CAN

PCS DUST message signal

Millimeter Wave Radar Sensor Assembly

Pre-Collision System Malfunction. Visit Your Dealer.*1

Displayed

Input

CAN

PCS fault condition text display signal

Millimeter Wave Radar Sensor Assembly

Blind Spot Monitor System Malfunction. Visit Your Dealer.*3

Displayed

Input

CAN

BSM module status signal

Blind spot monitor sensor LH

Engine Oil Pressure Low.

Displayed

Input

Direct line

Engine oil pressure signal

Engine oil pressure switch assembly

EPB Unavailable.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

EPB Malfunction. Visit Your Dealer.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Use on Expressway Only. Beware of Stopping or Merging Vehicles!*1

Displayed

Input

CAN

ACC display ID signal

ECM

LDA Unavailable Below Approx. 50 km/h.*1

Displayed

Input

CAN

Speed condition failure text display

Forward recognition camera

LDA Unavailable Below Approx. 32 MPH.*1

Displayed

Input

CAN

Speed condition failure text display

Forward recognition camera

LDA Unavailable at Current Speed.*1

Displayed

Input

CAN

Speed condition failure text display

Forward recognition camera

Engine Stopped. Steering Power Low.

Displayed

Input

CAN

Multi-information display request signal

Power steering ECU assembly

Turn Power Off.*2

Displayed

Input

CAN

Smart key system warning 2 signal

Certification ECU (smart key ECU assembly)

Would You Like To Take A Rest?*1

Displayed

Input

CAN

SWS rest advisory display signal

Forward recognition camera

Please Take A Rest.*1

Displayed

Input

CAN

SWS rest advisory display signal

Forward recognition camera

Key Detected in Vehicle.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Turn Lights Off.

Displayed

Input

CAN

Light status signal

Main body ECU (Multiplex network body ECU)

Window Open.

Displayed

Input

CAN

Window Open Warning Request signal

Main body ECU (Multiplex network body ECU)

Depress Brake Pedal and Touch ENGINE Switch with Key.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Not Ready to Drive. 'Depress Brake Pedal '& Push ENGINE Switch to Start.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Not Ready to Drive.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Depress Brake Pedal '& Push ENGINE Switch to Start.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Push ENGINE Switch 'while Turning 'The Steering Wheel 'in Either Direction.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Brake Hold Malfunction. Visit Your Dealer.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Brake Hold Less Effective during Icy Conditions.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Brake Hold Active. Depress Brake and Switch to Deactivate.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Brake Hold Unavailable. Driver Door Open.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

EPB Can't be Released. Close Door and Fasten Your Seatbelt.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Brake Hold Unavailable. Driver Seat Belt Unbuckled.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Brake Hold Unavailable. Hood or Trunk Open.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Depress Brake to Maintain Brake Hold.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Close Driver Door to Maintain Brake Hold.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Fasten Driver Seat Belt to Maintain Brake Hold.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

Brake System Overheated. Brake Hold Unavailable.

Displayed

Input

CAN

Brake hold information control flag signal

Skid control ECU (Brake actuator assembly)

EPB Automatically Applied.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Drive-Start Control Malfunction. Visit Your Dealer.

Displayed

Input

CAN

GOS multi-information request signal

ECM

Brake Override Malfunction. Visit Your Dealer.

Displayed

Input

CAN

Brake override system warning light request signal

ECM

Key Battery Low. Replace Key Battery.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Headlight System Malfunction. Visit Your Dealer.*1, *5

Displayed

Input

CAN

Smart beam indicator signal

Main body ECU (Multiplex network body ECU)

Accelerator and Brake Pedals Depressed Simultaneously.

Displayed

Input

CAN

BOS multi-information request signal

ECM

Low Washer Fluid.*6

Displayed

Input

Direct line

Washer level sensor signal

Level warning switch assembly

Traction Control Turned OFF.

Displayed

Input

CAN

TRC OFF light signal

Skid control ECU (Brake actuator assembly)

Oil Maintenance Required Soon.*7

Displayed

Input

CAN

Oil maintenance signal

ECM

Maintenance Required Soon.

Displayed

Input

CAN

Starter signal

ECM

Oil Maintenance Required Visit Your Dealer.*7

Displayed

Input

CAN

Oil maintenance signal

ECM

Maintenance Required. Visit Your Dealer.

Displayed

Input

CAN

Starter signal

ECM

To Activate AHB, Switch Headlights to High Beam.*1

Displayed

Input

CAN

Smart beam advice signal

Main body ECU (Multiplex network body ECU)

Resetting Oil Maintenance Data.*7

Displayed

Input

CAN

Oil maintenance signal

ECM

Resetting Maintenance Data.

Displayed

Input

CAN

Starter signal

ECM

Resetting of Oil Maintenance Data Incomplete.*7

Displayed

Input

CAN

Oil maintenance signal

ECM

Resetting of Maintenance Data Incomplete.

Displayed

Input

CAN

Starter signal

ECM

A New Key has been Registered. Contact Your Dealer for Details.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

Depress Brake Pedal & Push ENGINE Switch to Start.*2

Displayed

Input

CAN

Smart key system warning signal

Certification ECU (smart key ECU assembly)

VSC Turned Off. Pre-Collision Brake System Unavailable.*1

Displayed

Input

CAN

PB temporary unusable condition text display signal

Millimeter Wave Radar Sensor Assembly

VSC OFF indicator light signal

Skid control ECU (Brake actuator assembly)

Pre-Collision System Unavailable.*1

Displayed

Input

CAN

PCS temporary unusable condition text display signal

Millimeter Wave Radar Sensor Assembly

Pre-Collision System Unavailable. Clean Sensor.*1

Displayed

Input

CAN

PCS temporary unusable condition text display signal

Millimeter Wave Radar Sensor Assembly

Depress The Accelerator Pedal When Starting Off.

Displayed

Input

CAN

Take off advice with iMT signal

ECM

EPB Shift Interlock Function Activated.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

EPB Shift Interlock Function Deactivated.

Displayed

Input

CAN

EPB warning signal

Skid control ECU (Brake actuator assembly)

Pre-Collision System Off.*1

Displayed

Input

CAN

PCS Warning distance unusable condition text display signal

Millimeter Wave Radar Sensor Assembly

  • *1: w/ Toyota Safety Sense P
  • *2: w/ Smart Key System
  • *3: w/ Blind Spot Monitor System
  • *4: w/ Cruise Control System
  • *5: for LED Headlight
  • *6: w/ Washer Level Warning Switch
  • *7: w/ Occupant Classification System

(d) Buzzer

Item

Condition

Input/Output

Communication line

Signal

Component

Engine stall warning buzzer

Sounds intermittently

Input

CAN

Engine stall buzzer signal

ECM

Seatbelt warning (for Driver side) buzzer

Sounds once / Sounds intermittently

Input

CAN

Driver seat buckle switch signal

Main body ECU (Multiplex network body ECU)

Parking brake switch signal

Shift position R signal

ECM

Shift position P signal

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Seat belt warning (for Front passenger side) buzzer

Sounds once / Sounds intermittently

Input

CAN

Parking brake switch signal

Main body ECU (Multiplex network body ECU)

Shift position R signal

ECM

Shift position P signal

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Front passenger seat belt buckle switch signal*1

Airbag sensor assembly

Front passenger seat occupant detection sensor signal*1

Direct line*2

Front passenger seat belt buckle switch occupant detection signal

  • Occupant detection sensor (Separate type front seat cushion pad)
  • Front seat inner belt assembly (Front passenger seat)

Seat belt warning (for Rear seat) buzzer*3

Sounds intermittently

Input

CAN

Parking brake switch signal

Main body ECU (Multiplex network body ECU)

Rear right door courtesy switch signal

Rear left door courtesy switch signal

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Shift selection P signal

ECM

Shift selection R signal

Direct line

Rear left seat belt buckle switch signal

Rear seat inner with center belt assembly LH

Rear center seat belt buckle switch signal

Rear right seat belt buckle switch signal

Rear seat inner belt assembly RH

Smart key warning buzzer*4

Sounds intermittently

Input

CAN

Meter buzzer intermittence request signal

Certification ECU (Smart key ECU assembly)

Reverse buzzer

Sounds once / Sounds intermittently

Input

CAN

Shift selection R signal

ECM

Door opening without shifting to P range warning buzzer*4

Sounds intermittently

Input

CAN

Meter buzzer continuation request signal

Certification ECU (Smart key ECU assembly)

Key reminder buzzer*5

Sounds intermittently

Input

CAN

Key SW signal

Main body ECU (Multiplex network body ECU)

Driver's seat courtesy SW signal

Brake system low braking force warning buzzer

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

VSC skid warning

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

Low brake fluid warning buzzer

Sounds intermittently

Input

Direct line

Brake oil level warning switch signal

Brake fluid level warning switch

EPS buzzer

Sounds intermittently

Input

CAN

Demand Buzzer to Meter signal

Power steering ECU assembly

Engine switch operation while driving warning buzzer*4

Sounds intermittently

Input

CAN

Buzzer request signal

Certification ECU (Smart key ECU assembly)

Vehicle rollover warning buzzer

Sounds once / Sounds intermittently

Input

CAN

Engine RPM data signal

ECM

Shift position P signal

Shift position N signal

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Lane departure alert warning buzzer*6

Sounds intermittently

Input

CAN

LDW buzzer signal

Forward recognition camera

PKB-ON while driving warning buzzer

Sounds intermittently

Input

CAN

Parking brake switch signal

Main body ECU (Multiplex network body ECU)

Vehicle speed signal

Skid control ECU (Brake actuator assembly)

Brake control system temperature warning buzzer

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

Temperature warning / CRAWL cancel warning buzzer

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

HAC Reset buzzer

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

HAC Set buzzer

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

HAC during regular control buzzer

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

HAC advance notice of ending buzzer

Sounds intermittently

Input

CAN

Buzzer control flag signal

Skid control ECU (Brake actuator assembly)

Oil pressure warning buzzer

Sounds intermittently

Input

Direct line

Engine oil pressure signal

Engine oil pressure switch assembly

Driving with door ajar warning buzzer

Sounds intermittently

Input

CAN

Driver door courtesy switch signal

Main body ECU (Multiplex network body ECU)

Front passenger door courtesy switch signal

Rear right side courtesy switch signal

Rear left side courtesy switch signal

Back door courtesy SW signal

Vehicle speed (SP1) signal

Skid control ECU (Brake actuator assembly)

Smart Key System warning buzzer*4

Sounds once / Sounds intermittently

Input

CAN

Smart key system warning signal

Certification ECU (Smart key ECU assembly)

Sport mode shift reject buzzer

Sounds twice

Input

CAN

Reject buzzer signal

ECM

Low speed zone Leading vehicle lost buzzer*6

Sounds 4 times

Input

CAN

Low speed zone Leading vehicle lost buzzer signal

Forward recognition camera

Lane departure alert hands-free caution buzzer*6

Sounds intermittently

Input

CAN

Hands-free caution text display signal

Forward recognition camera

Radar cruise low speed cancel buzzer*6

Sounds twice

Input

CAN

Low speed cancel buzzer request signal

Forward recognition camera

Lane departure alert cancel buzzer*6

Sounds twice

Input

CAN

Lane departure alert cancel buzzer signal

Forward recognition camera

Unsteady driving alert buzzer*6

Sounds twice

Input

CAN

SWS buzzer request signal

Forward recognition camera

Road sign assist buzzer*6

Sounds four times

Input

CAN

Buzzer request of permanent area signal

Forward recognition camera

Engine high water temperature warning buzzer

Sounds intermittently

Input

CAN

Water temperature signal

ECM

Multi-information display warning buzzer

Sounds once

Input

CAN

Multi-information display warning signal

Related ECUs

Input

Direct line

Engine malfunction warning buzzer

Sounds intermittently

Input

CAN

Engine malfunction buzzer

ECM

Light reminder buzzer

Sounds continuously

Input

CAN

Lighting system state signal

Main body ECU (Multiplex network body ECU)

Driver door courtesy switch signal

Immobilizer key identification completion buzzer*4

Sounds once

Input

CAN

Immobilizer key identification completion signal

Certification ECU (Smart key ECU assembly)

  • *1: w/ Occupant Classification System
  • *2: w/o Occupant Classification System
  • *3: w/ Rear Passenger Seat Belt Warning
  • *4: w/ Smart Key System
  • *5: w/o Smart Key System
  • *6: w/ Toyota Safety Sense P

(e) Others

Item

Condition

Input/Output

Communication line

Signal

Component

Meter illumination

Illumination level

Input

CAN

ST signal input signal

ECM

Auto dimmer signal

Main body ECU (Multiplex network body ECU)

Light control signal

Tail light request signal

Parking brake SW signal

Shift position P signal

ECM

Transmission information signal

Steering Wheel signal

Main body ECU (Multiplex network body ECU)

-

Output

CAN

Rheostat duty signal

Related ECUs

Tail cancel signal

    System Diagram
    SYSTEM DIAGRAM HINT: Inspect the communication function by CAN communication system. Click here ...

    Customize Parameters
    CUSTOMIZE PARAMETERS CUSTOMIZE METER / GAUGE SYSTEM (a) Customizing with the Techstream. (1) Connect the Techstream to the DLC3. (2) Turn the ignition switch ON. (3) Turn the Techstream on. (4) ...

    Other materials:

    Toyota CH-R Service Manual > Charging System: Precaution
    PRECAUTION IGNITION SWITCH EXPRESSIONS HINT: The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ignition Switch (Position) Engine ...

    Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted Air Conditioner Pressure Sensor): Compressor Solenoid Circuit (B1451)
    DESCRIPTION In this circuit, the compressor with pulley assembly (compressor solenoid) receives a refrigerant compression demand signal from the air conditioning amplifier assembly. Based on this signal, the compressor with pulley assembly (compressor solenoid) changes the amount of compressor ...

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