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Terminals Of Ecu

  1. CHECK MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH) 
    1. Disconnect the RK, RN and RD main body ECU RH (cowl side junction block RH) connectors
      Fig 1: Identifying ECU Connectors Terminals
      G05754216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage and resistance according to the value(s) in the table below
      TERMINALS REFERENCE

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      RK-5 (BECU) - Body ground G-R - Body ground Battery power supply Always 11 to 14 V
      RN-1 (BATB) - Body ground R - Body ground Battery power supply Always 11 to 14 V
      RD-7 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      RD-17 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction in the wire harness

    3. Reconnect the RK, RN and RD main body ECU RH (cowl side junction block RH) connectors
    4. Measure the voltage according to the value(s) in the table below
      TERMINALS REFERENCE

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      P1-14 (DCTY) - Body ground W - Body ground Driver side door courtesy switch input Driver side door open Below 1 V
      P1-14 (DCTY) - Body ground W - Body ground Driver side door courtesy switch input Engine switch off, and driver side door courtesy switch off 11 to 14 V
      J75-23 (PCTY) - Body ground B - Body ground Front passenger side door courtesy switch input Front passenger side door open Below 1 V
      J75-23 (PCTY) - Body ground B - Body ground Front passenger side door courtesy switch input Engine switch off, and passenger side door courtesy switch off 11 to 14 V
      RA-11 (LCTY) - Body ground BR - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      RA-11 (LCTY) - Body ground BR - Body ground Rear door LH courtesy light switch input Engine switch off, and rear door courtesy switch LH off 11 to 14 V
      P1-16 (RCTY) - Body ground O - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V
      P1-16 (RCTY) - Body ground O - Body ground Rear door RH courtesy light switch input Engine switch off, and rear door courtesy switch RH off 11 to 14 V
      J75-25 (LGCY) - Body ground L - Body ground Luggage compartment door courtesy light switch input Luggage compartment door open Below 1 V
      J75-25 (LGCY) - Body ground L - Body ground Luggage compartment door courtesy light switch input Engine switch off, and luggage compartment door closed 11 to 14 V
      RJ-9 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (All doors) Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      RJ-9 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (All doors) Multiplex network master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      P1-4 (ACTD) - Body ground L - Body ground Driver side door lock motor unlock drive output Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      P1-4 (ACTD) - Body ground L - Body ground Driver side door lock motor unlock drive output Multiplex network master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      RJ-17 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output (except driver side) Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      RJ-17 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output (except driver side) Multiplex network master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      J75-27 (LSWP) - Body ground W - Body ground Passenger side door lock position switch input Passenger side door unlock Below 1 V
      J75-27 (LSWP) - Body ground W - Body ground Passenger side door lock position switch input Engine switch off, all doors closed and passenger side door lock 11 to 14 V
      RA-2 (LSWL) - Body ground R - Body ground Rear door LH lock position switch input Rear door LH unlock Below 1 V
      RA-2 (LSWL) - Body ground R - Body ground Rear door LH lock position switch input Engine switch off, all doors closed and rear door LH lock 11 to 14 V
      J75-5 (LSWR) - Body ground V - Body ground Rear door RH lock position switch input Rear door RH unlock Below 1 V
      J75-5 (LSWR) - Body ground V - Body ground Rear door RH lock position switch input Engine switch off, all doors closed and rear door RH lock 11 to 14 V
      RA-7 (GSW) - Body ground L - Body ground Center airbag sensor signal Turn the engine switch on (IG) with the center airbag sensor assembly connector disconnected 4 5 to 5 5 V

      If the result is not as specified, the main body ECU RH (cowl side junction block RH) may have a malfunction

  2. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 
    1. Disconnect the M7 multiplex network master switch assembly connector
      Fig 2: Identifying M7 Connector Terminals
      G05320598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage and resistance according to the value(s) in the table below
      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      M7-2 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      M7-9 (CPUB) - M7-2 (GND) G - W-B Battery power supply Always 11 to 14 V
      M7-10 (BDR) - M7-2 (GND) L - W-B Battery power supply Always 11 to 14 V
      M7-20 (SIG) - M7-2 (GND) B - W-B Ignition power supply Engine switch off Below 1 V
      M7-20 (SIG) - M7-2 (GND) B - W-B Ignition power supply Engine switch on (IG) 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the M7 multiplex network master switch assembly connector
    4. Measure the voltage according to the value(s) in the table below
      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      M7-4 (KL) - M7-2 (GND) L - W-B Door key-linked door lock input Using key, operate driver door lock cylinder to free (OFF) 11 to 14 V
      M7-4 (KL) - M7-2 (GND) L - W-B Door key-linked door lock input Using key, operate driver door lock cylinder to unlock Below 1 V
      M7-14 (KUL) - M7-2 (GND) W - W-B Door key-linked door unlock input Using key, operate driver door lock cylinder to free (OFF) 11 to 14 V
      M7-14 (KUL) - M7-2 (GND) W - W-B Door key-linked door unlock input Using key, operate driver door lock cylinder to unlock Below 1 V
      M7-16 (LSW) - M7-2 (GND) SB - W-B Driver side door unlock detection switch input Driver side door is locked 11 to 14 V
      M7-16 (LSW) - M7-2 (GND) SB - W-B Driver side door unlock detection switch input Driver side door is unlocked Below 1 V

      If the result is not as specified, the multiplex network master switch assembly may have a malfunction

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