Toyota Tundra Service Manual: System Diagram

SYSTEM DIAGRAM

Communication table:

Sender

Receiver

Communication Signal

Communication Line

ECM

Combination meter

  • TOW HAUL indicator light signal
  • Cruise control indicator light signal*4
  • SET indicator light signal*4
  • Engine coolant temperature signal
  • A/T OIL TEMP warning light signal
  • Current gear position signal
  • Fuel injection information signal
  • Engine speed data

CAN

Center airbag sensor

Combination meter

Passenger side seat belt buckle switch signal

CAN

4WD control ECU*1

Combination meter

  • SRS warning light signal
  • 4HI indicator light signal
  • 4LO indicator light signal

CAN

Skid control ECU

Combination meter

  • ABS warning light signal
  • AUTO LSD indicator light signal
  • SLIP indicator light signal
  • VSC OFF indicator light signal
  • Vehicle speed signal
  • Brake warning light signal

CAN

Air conditioning amplifier

Combination meter

Outside temperature signal

CAN

Main body ECU

Combination meter

  • Driver side seat belt buckle switch signal
  • Courtesy light switch signal
  • Key unlock warning signal
  • BEAM indicator light signal
  • HEAD indicator light signal*2
  • TAIL indicator light signal*3
  • Light reminder signal
  • Sliding roof open warning signal*7

CAN

Blind spot monitor sensor RH*5

Combination meter

Blind spot monitor system warning signal

CAN

Navigation receiver*6

Combination meter

Turn by turn navigation display signal

CAN

Brake control with bracket relay*8

Combination meter

Trailer brake control system warning signal

CAN

Millimeter Wave Radar Sensor Assembly*9

Combination meter

Dynamic radar cruise control system warning signal

CAN

Forward Recognition Camera*9

Combination meter

CAN

Tire Pressure Warning ECU

Combination meter

Tire pressure warning signal

CAN

  • *1: for 4WD
  • *2: for U.S.A.
  • *3: except U.S.A.
  • *4: w/ Cruise Control System or Dynamic Radar Cruise Control System
  • *5: w/ Blind Spot Monitor System
  • *6: w/ Navigation System
  • *7: w/ Sliding Roof System
  • *8: w/ Trailer Brake Control System
  • *9: w/ Dynamic Radar Cruise Control System
    System Description

    Tachometer Malfunction

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