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Home >> Lexus >> 2007 >> ES 350 >> Repair and Diagnosis >> Electrical >> Gauges >> Meter >> Meter / Gauge System >> System Diagram

System Diagram

Fig 1: Identifying Meter / Gauge System Diagram
G05252839Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INPUT AND OUTPUT SIGNALS OF THE COMBINATION METER ASSEMBLY: 

INPUT AND OUTPUT SIGNALS CHART OF COMBINATION METER ASSEMBLY

Sender Receiver Communication Signal Communication Line
Combination Meter Assembly
  • ECM
  • A/C Amplifier
  • Center Airbag Sensor Assembly
  • Main Body ECU
 Vehicle speed signal CAN (CAN No. 1 Bus)
  • Certification ECU
  • Position Control ECU (Front LH Side)((1))
  • Position Control ECU (Front RH Side)((1))
  • Clearance Sonar ECU ((2))
  • Tilt & Telescopic ECU
 CAN (CAN MS Bus)
  • Main Body ECU
  • A/C Amplifier
 Rheostat duty signal CAN (CAN No. 1 Bus)
Tail cancel signal
Main Body ECU Lounge illumination signal CAN (CAN No. 1 Bus)
  • A/C Amplifier
  • ECM
 Vehicle specification signal (Destination/Handle code) CAN (CAN No. 1 Bus)
Certification ECU Odometer signal 1. CAN (CAN MS Bus)
Clock Assembly Passenger seat belt warning light signal Direct Line
ECM Combination Meter Assembly Starter signal CAN (CAN No. 1 Bus)
Test mode signal
Cruise operation indicator light signal
Cruise control warning signal
TM oil temperature range
Engine coolant temperature signal
Shift position signal
Reject buzzer signal
Gear position signal
Sports mode indicator light signal
Engine RPM data
Main Body ECU Combination Meter Assembly Illuminance data CAN (CAN No. 1. Bus)
Auto dimmer signal
ACC switch signal
Key switch signal
Each door courtesy switch signal
Slide roof signal
Smart key signal
Driver side seat belt switch signal
Parking brake switch signal
High beam indicator light signal
Head ((3))/Tail ((4)) indicator light signal
Front fog indicator light signal
Wireless buzzer signal
  • Main Body ECU
  • Certification ECU
 Combination Meter Assembly Engine hood courtesy switch signal CAN (CAN MS Bus)
Certification ECU Combination Meter Assembly Meter buzzer request signal CAN (CAN MS Bus)
Each door open display signal
Key lose warning signal
Low key battery warning signal
Shift position warning signal
Steering lock abnormal warning
Steering lock unlock warning
Immobiliser key identification completion signal
Clearance Warning ECU ((2)) Combination Meter Assembly Clearance warning display signal
Sensor diagnosis signal
Tire angle information
Display indication request
Skid Control ECU Combination Meter Assembly Vehicle speed signal CAN (CAN No. 1 Bus)
Brake warning light control flag
ABS warning light signal
Slip indicator light signal
Stop light signal
VSC warning signal
Distance Control ECU ((5)) Combination Meter Assembly Radar cruise beam axis adjustment signal CAN (CAN No. 2 Bus)
  • ECM
  • Skid Control ECU
 Combination Meter Assembly Diagnosis signal CAN (CAN No. 1 Bus)
A/C Amplifier Combination Meter Assembly Ambient temperature display signal CAN (CAN No. 1 Bus)
Center Airbag Sensor Assembly Combination Meter Assembly Airbag warning light signal CAN (CAN No. 1 Bus)
Front passenger seat condition signal
Front passenger seat belt condition signal
Seat Belt Control ECU ((6)) Combination Meter Assembly PCS indicator light signal CAN (CAN No. 2 Bus)
Radar sensor information signal
PCS system information signal
AFS ECU ((7)) Combination Meter Assembly AFS OFF indicator light signal CAN (CAN No. 2 Bus)
Steering Pad Switch Combination Meter Assembly Steering pad switch operation signal Direct Line
Fuel Sender Gauge Assembly Combination Meter Assembly Fuel level signal Direct Line
Turn Signal Flasher Combination Meter Assembly Turn LH/RH indicator light signal Direct Line
Tire Pressure Warning ECU ((8)) Combination Meter Assembly Tire pressure warning light signal Direct Line
Washer Level Switch Combination Meter Assembly Washer fluid level warning light signal Direct Line
Brake Fluid Level Warning Switch Combination Meter Assembly Brake fluid level warning light signal Direct Line
Light Control Rheostat Combination Meter Assembly Illumination signal Direct Line
Tail cancel signal
Engine Oil Level Sensor Combination Meter Assembly Engine oil level signal Direct Line
Light Failure Sensor Combination Meter Assembly Rear light indicator light signal Direct Line
Generator Combination Meter Assembly Charge warning light signal Direct Line
Engine Oil Pressure Switch Combination Meter Assembly Engine oil pressure signal Direct Line
ECM Combination Meter Assembly Check engine warning light signal Direct Line
(1) with Seat Position Memory System
(2) with Intuitive Parking Assist System
(3) for U.S.A.
(4) for Canada
(5) with Dynamic Radar Cruise Control System
(6) with Pre-collision System
(7) with AFS
(8) with Tire Pressure Warning System
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