TIRE PRESSURE WARNING SYSTEM TERMINALS OF ECU


  1. CHECK TIRE PRESSURE WARNING ECU AND RECEIVER


    1. Disconnect the tire pressure warning ECU and receiver G61*1 or L1*2 connector and measure the voltage or resistance on the wire harness side.


      • *1: for Sedan

      • *2: for Wagon

      A004R39E01
      Text in Illustration
      *A for Sedan *B for Wagon
      *a

      Front view of wire harness connector

      (to Tire Pressure Warning ECU and Receiver)

      - -
      for Sedan
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G61-1 (IG) - G61-12 (GND) L - W-B IG power source Ignition switch ON 10 to 16 V
      G61-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for Wagon
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L1-1 (IG) - L1-12 (GND) L - W-B IG power source Ignition switch ON 10 to 16 V
      L1-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    2. Connect the tire pressure warning ECU and receiver G61*1 or L1*2 connector.


      • *1: for Sedan

      • *2: for Wagon

    3. Measure the voltage according to the value(s) in the table below. If the result is not as specified, the ECU may have a malfunction.

      Tech Tips

      Inspect the connectors from the back side while the connectors are connected.

      A004QV7E02
      Text in Illustration
      *A for Sedan *B for Wagon
      *a

      Component with harness connected

      (Tire Pressure Warning ECU and Receiver)

      - -
      for Sedan
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G61-7 (CLSW) - G61-12 (GND) B - W-B Tire pressure warning reset switch
      • Ignition switch ON

      • Tire pressure warning reset switch ON

      Below 2.4 V

      • Ignition switch ON

      • Tire pressure warning reset switch OFF

      8 to 15 V
      for Wagon
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L1-7 (CLSW) - L1-12 (GND) B - W-B Tire pressure warning reset switch
      • Ignition switch ON

      • Tire pressure warning reset switch ON

      Below 2.4 V

      • Ignition switch ON

      • Tire pressure warning reset switch OFF

      8 to 15 V