Terminals Of Ecu

CHECK DRIVER SIDE J/B MULTIPLEX NETWORK BODY ECU
1. Disconnect the J/B connectors D4 and 2G.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 1: Identifying Driver Side J/B Multiplex Network Body ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 2: Driver Side J/B Multiplex Network Body ECU Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK PASSENGER SIDE J/B (PASSENGER SIDE J/B ECU)
1. Disconnect the J/B connectors 3E, 3G and P4.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 3: Identifying Passenger Side J/B (Passenger Side J/B ECU) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 4: Passenger Side J/B (Passenger Side J/B ECU) Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK LUGGAGE ROOM J/B MULTIPLEX NETWORK REAR JUNCTION ECU
1. Disconnect the J/B connectors 6F, 6J and L24.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 5: Identifying Luggage Room J/B Multiplex Network Rear Junction ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 6: Luggage Room J/B Multiplex Network Rear Junction ECU Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK MULTIPLEX NETWORK DOOR ECU (DRIVER SIDE)
1. Disconnect the ECU connector D19.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 7: Identifying Multiplex Network Door ECU (Driver Side) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 8: Multiplex Network Door ECU (Driver Side) Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK MULTIPLEX NETWORK DOOR ECU (PASSENGER SIDE)
1. Disconnect the ECU connector P11.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 9: Identifying Multiplex Network Door ECU (Passenger Side) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 10: Multiplex Network Door ECU (Passenger Side) Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK TIRE PRESSURE MONITOR RECEIVER
1. Disconnect the ECU connector T9.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 11: Identifying Tire Pressure Monitor Receiver Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 12: Tire Pressure Monitor Receiver Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK THEFT WARNING ECU ASSY
1. Disconnect the ECU connector T7.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 13: Identifying Theft Warning ECU Assy Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 14: Theft Warning ECU Assy Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or repair or replace it if necessary.
CHECK TRANSPONDER KEY ECU ASSY (IMMOBILIZER ECU)
1. Disconnect the ECU connector T13.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 15: Identifying Transponder Key ECU Assy (Immobilizer ECU) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 16: Transponder Key ECU Assy (Immobilizer ECU) Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK TURN SIGNAL SWITCH ASSY
1. Disconnect the ECU connector C11.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 17: Identifying Turn Signal Switch Assy Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 18: Turn Signal Switch Assy Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK MULTIPLEX NETWORK FRONT LAMP ECU
1. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  NOTE: Inspection should be started from the backside of the relay block with the multiplex network front lamp ECU connector being connected.
  
  Fig 19: Identifying Multiplex Network Front Lamp ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 20: Multiplex Network Front Lamp ECU Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK STEERING PAD SWITCH MODULATOR
1. Disconnect the ECU connector.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 21: Identifying Steering Pad Switch Modulator Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 22: Steering Pad Switch Modulator Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK MULTIPLEX TILT AND TELESCOPIC ECU
1. Disconnect the ECU connectors T8.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 23: Identifying Multiplex Tilt & Telescopic ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 24: Multiplex Tilt & Telescopic ECU Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK COMBINATION METER ASSY
1. Disconnect the ECU connectors C8 and C9.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 25: Identifying Combination Meter Assy Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 26: Combination Meter Assy Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK SKID CONTROL ECU ASSY
1. Disconnect the ECU connectors S5, S6, S7 and S8.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 27: Identifying Skid Control ECU Assy Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 28: Skid Control ECU Assy Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK AIR CONDITIONING AMPLIFIER ASSY
1. Disconnect the ECU connector A10.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 29: Identifying Air Conditioning Amplifier Assy Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 30: Air Conditioning Amplifier Assy Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK ECM
1. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  NOTE:
  - Inspection should be started from the backside of the ECM with the ECM connector being connected.
  - Inspect the power source voltage and the body ground before the operation inspection.
  Fig 31: Identifying ECM Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 32: ECM Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK AIRBAG ECU (See AIR BAG RESTRAINT SYSTEMS )
CHECK GATEWAY ECU
1. Disconnect the ECU connector.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 33: Identifying Gateway ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 34: Gateway ECU Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK SLIDING ROOF CONTROL ECU ASSY
1. Disconnect the ECU connectors S18 and S19.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 35: Identifying Sliding Roof Control ECU Assy Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 36: Sliding Roof Control ECU Assy Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK POSITION CONTROL ECU ASSY (DRIVER SIDE)
1. Disconnect the ECU connectors P21 and P22.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 37: Identifying Position Control ECU Assy (Driver Side) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 38: Position Control ECU Assy (Driver Side) Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK MULTIPLEX NETWORK DOOR ECU (PASSENGER'S SIDE)
1. Disconnect the ECU connectors P23 and P24.
2. Check the voltage and continuity of each terminal of the vehicle's side connectors.
  
  Fig 39: Identifying Multiplex Network Door ECU (Passenger's Side) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 40: Multiplex Network Door ECU (Passenger's Side) Continuity/Voltage Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the value is not as specified the vehicle's side may be defective. In this case, inspect the harness, connector and fuse between the ECU and battery, then repair or replace it if necessary.
CHECK RADIO RECEIVER AMPLIFIER ASSY (See TERMINALS OF ECU )