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Home >> Toyota >> 2009 >> Corolla XLE, 1.8 L >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display >> Meter / Gauge System >> System Diagram

System Diagram

  1. CAN SIGNAL 
    Fig 1: Air Conditioning Amplifier Communication Diagram
    G06014487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. DIRECT LINE SIGNAL 
    Fig 2: Air Conditioning Amplifier Communication Diagram
    G06014488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INPUT AND OUTPUT SIGNALS OF THE COMBINATION METER 
COMMUNICATION SIGNAL CHART

Communication Signal Sender Receiver Communication Line
MIL (Check engine warning light) ECM Combination Meter Direct Line
Starter CAN (CAN No. 1 Bus)
Test mode
Tachometer
Engine coolant temperature
Cruise indicator light
Cruise control warning
Sports shift reject buzzer request
A/T shift position
Engine type information
Vehicle speed Skid Control ECU Combination Meter Direct Line and CAN (CAN No. 1 Bus)
ABS warning light CAN (CAN No. 1 Bus)
Brake warning light
Slip indicator light(1)
VSC off indicator light(1)
Parking brake
Each door courtesy switch Main Body ECU Combination Meter CAN (CAN No. 1 Bus)
Driver side seat belt buckle switch
Parking brake switch
Wireless buzzer
Sliding roof(4)
Sliding roof warning buzzer request(4)
Front passenger side seat belt buckle switch Center Airbag Sensor Assembly Combination Meter CAN (CAN No. 1 Bus)
SRS warning light
Front passenger side seat condition
Diagnosis information Center Airbag Sensor Assembly Combination Meter CAN (CAN No. 1 Bus)
ECM
Skid Control ECU
Power Steering ECU
EPS warning light Power Steering ECU Combination Meter CAN (CAN No. 1 Bus)
Vehicle speed Combination Meter Air Conditioning Amplifier CAN (CAN No. 1 Bus)
Certification ECU
Power Steering ECU
Center Airbag Sensor Assembly
ECM Direct Line
Radio Receiver
Sliding Roof Control ECU(4)
Tire Pressure Warning ECU(6)
Main Body ECU(7)
Navigation Receiver Assembly(8)
Stereo Component Amplifier(9)
Illumination Combination Meter Main Body ECU CAN (CAN No. 1 Bus)
Vehicle specification Combination Meter Air Conditioning Amplifier CAN (CAN No. 1 Bus)
Smart key indicator light(7) Certification ECU Combination Meter  
Fuel level Fuel Sender Gauge Assembly Combination Meter Direct Line
Turn indicator light Turn Signal Flasher Combination Meter Direct Line
High beam indicator light H-LP HI Fuse Combination Meter Direct Line
Head indicator light(2) DRL Relay Combination Meter Direct Line
Tail indicator light(3) TAIL Relay Combination Meter Direct Line
Front fog indicator light(5) FR Fog Relay Combination Meter Direct Line
Outside temperature Outside Temperature Sensor Combination Meter Direct Line
Brake fluid level Brake Fluid Level Warning Switch Combination Meter Direct Line
Charge warning light Generator Combination Meter Direct Line
Oil pressure warning light Oil Pressure Switch Combination Meter Direct Line
Washer level warning light(3) Washer Level Warning Switch Combination Meter Direct Line
Tire pressure warning light(6) Tire Pressure Warning ECU Combination Meter Direct Line
Front passenger side seat belt warning light Combination Meter Telltale Light Assembly Direct Line
(1) w/VSC
(2) for U.S.A.
(3) except for U.S.A.
(4) w/ Sliding Roof
(5) w/ Front Fog Light
(6) w/ Tire Pressure Warning System
(7) w/ Smart Key System
(8) w/ Navigation System
(9) for Separate Type Amplifier System