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System Diagram

Fig 1: Identifying Meter/Gauge System Diagram (1 Of 2)
G04945142Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying Meter/Gauge System Diagram (2 Of 2)
G04945143Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Communication table: 

COMMUNICATION TABLE

Sender Receiver Communication Signal Communication Line
No. 1 meter ECU
  • ECM Air conditioning amplifier
  • Center airbag sensor
  • Main body ECU
 Vehicle speed signal CAN
  • Certification ECU
  • Parking assist ECU*3
  • Clearance warning ECU*4
  • Tilt & telescopic ECU
  • Main body ECU (driver side junction block)
  • Air conditioning amplifier
 Rheostat duty signal
Main body ECU Lounge illumination signal
  • Air conditioning amplifier
  • ECM
 Vehicle specification signal (Destination/Handle code)
Certification ECU Odometer signal
Multi-display*5 Integration control and panel*6
  • Front passenger side seat belt warning light signal
  • 4P out signal
 Direct Line
ECM No. 1 meter ECU
  • Starter signal
  • Test mode signal
  • CRUISE main indicator light signal*1
  • Cruise control warning signal*1
  • Engine coolant temperature signal
  • Shift position signal
  • Reject buzzer signal
  • Gear position signal
  • Engine RPM data
  • Fuel injection signal
  • Diagnosis signal
 CAN
MIL signal Direct line
Electro-mechanical parking brake ECU No. 1 meter ECU Parking brake switch signal CAN
Main body ECU (driver side junction block) No. 1 meter ECU
  • Illuminance data
  • Auto dimmer signal
  • ACC switch signal
  • Key switch signal
  • Each door courtesy switch signal
  • Slide roof signal*8
  • Key signal
  • Driver side seat belt switch signal
  • High beam indicator light signal
  • HEAD indicator light signal*3
  • Fr. FOG indicator light signal
  • Rr. FOG indicator light signal*2
  • TAIL indicator light signal*2
  • Diagnosis signal
  • Stop switch signal
  • Meter illumination light up signal
  • Vehicle destination package signal
  • Display switch reset signal
  • Sliding roof warning signal*9
 CAN
Certification ECU No. 1 meter ECU
  • Inside key existence warning signal
  • Low key battery warning signal
  • Shift position warning signal
  • Meter buzzer request signal
  • Door unlock mode display signal
  • Steering lock warning signal
 CAN
  • Parking assist ECU*3
  • Clearance warning ECU*4
 No. 1 meter ECU
  • Clearance warning display signal
  • Sensor diagnosis signal
 CAN
Skid control ECU No. 1 meter ECU
  • ABS warning light ON signal
  • Brake warning light ON signal
  • Brake control warning light ON signal
  • Slip indicator light ON signal
  • Speedometer signal
  • Brake hold indicator signal
 CAN
Tire pressure warning ECU No. 1 meter ECU Tire pressure warning light signal CAN
Driving support ECU*4, *5 No. 1 meter ECU
  • Diagnosis signal
  • Vehicle-to-vehicle distance control signal
  • Vehicle-to-vehicle distance signal
  • Front millimeter wave radar sensor grime signal
  • Bad weather detection signal
  • Approach warning signal
  • Preceding vehicle detection signal
  • Front millimeter wave radar sensor beam axis deviation signal
  • CRUISE main indicator light signal
  • Dynamic radar cruise warning signal
  • Cruise control vehicle speed signal*1
  • Constant speed cruise signal
 CAN
Air conditioning amplifier No. 1 meter ECU
  • Ambient temperature display signal
  • Air conditioning filter replacement signal
 CAN
Center airbag sensor No. 1 meter ECU
  • Airbag warning light signal
  • Front passenger seat condition signal
  • Front passenger seat belt condition signal
  • Diagnosis signal
 CAN
Seat belt control ECU*6 No. 1 meter ECU
  • PCS indicator light signal
  • Radar sensor information signal
  • PCS system information signal
  • Pre-collision off switch signal*5
 CAN
ECT ECU No. 1 meter ECU
  • Shift position P signal
  • Shift position R signal
  • Shift position N signal
  • Shift position D signal
  • Shift position 6 signal
  • Shift position 5 signal
  • Shift position 4 signal
  • Shift position 3 signal
  • Shift position 2 signal
  • Shift position 1 signal
  • Sports mode indicator signal
  • TM oil temperature range
  • Sports mode enable signal
  • Shift position signal
  • ECT POWER indicator light signal
  • ECT SNOW indicator light signal
  • Sports shift reject buzzer signal
  • CHARGE indicator light signal
 CAN
AFS ECU No. 1 meter ECU AFS OFF indicator light signal CAN
Front controller No. 1 meter ECU
  • Hood courtesy switch signal
  • CHARGE indicator light signal
  • Oil level signal
  • Oil pressure signal
  • Washer level signal
 CAN
Rear junction block ECU No. 1 meter ECU
  • Taillight signal
  • Brake pad wear signal
  • Remaining fuel signal
 CAN
Suspension control ECU No. 1 meter ECU
  • TEMS SPORT indicator light signal
  • TEMS COMFORT indicator light signal
  • HEIGHT HIGH indicator light signal
 CAN
Steering pad switch No. 1 meter ECU Steering pad switch operation signal CAN
Fuel sender gauge No. 1 meter ECU Fuel level signal CAN
Turn signal flasher relay No. 1 meter ECU Turn signal indicator light (LH/RH) signal Direct Line
Washer level switch No. 1 meter ECU Washer fluid level warning light signal CAN
Brake fluid level warning switch No. 1 meter ECU Brake fluid level warning light signal CAN
Light control rheostat No. 1 meter ECU Illumination signal Direct Line
Engine oil level sensor No. 1 meter ECU Engine oil level signal CAN
Light failure sensor No. 1 meter ECU Rear light indicator light signal CAN
Generator No. 1 meter ECU CHARGE warning light signal CAN
Engine oil pressure switch No. 1 meter ECU Engine oil pressure signal CAN
ECM No. 1 meter ECU MIL warning light signal Direct Line
HINT:
*1: w/ Cruise control system
*2: for Except U.S.A.
*3: w/ Advanced parking guidance system
*4: w/o Advanced parking guidance system
*5: w/ Dynamic radar cruise control system
*6: w/ Pre-collision system
*7: w/ Multi-display system
*8: w/o Multi-display system
*9: w/ Sliding roof system
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