POWER MIRROR CONTROL SYSTEM(w/o Memory) TERMINALS OF ECU


  1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR)

    A01VTM0C16
    *A for LHD *B for RHD

    1. Disconnect the N4*1 or M4*2 outer mirror control ECU assembly (driver door) connector.


      • *1: for LHD

      • *2: for RHD

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N4-14 (BDR) - Body ground L - Body ground +B power supply Always 11 to 14 V
      N4-6 (CPUB) - Body ground L - Body ground +B power supply Always 11 to 14 V
      N4-5 (SIG) - Body ground Y - Body ground Ignition power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V
      N4-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      M4-14 (BDR) - Body ground G - Body ground +B power supply Always 11 to 14 V
      M4-6 (CPUB) - Body ground GR - Body ground +B power supply Always 11 to 14 V
      M4-5 (SIG) - Body ground B - Body ground Ignition power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V
      M4-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the N4*1 or M4*2 outer mirror control ECU assembly (driver door) connector.


      • *1: for LHD

      • *2: for RHD

    4. Measure the voltage according to the value(s) in the table below.

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      z12-3 (MR) - Body ground SB - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (driver door) being retracted 11 to 14 V
      Outer rear view mirror assembly (driver door) stopped Below 1 V
      z12-11 (MF) - Body ground LG - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (driver door) returning 11 to 14 V
      Outer rear view mirror assembly (driver door) stopped Below 1 V
      z12-1 (MV) - z12-10 (M+) V - R Vertical mirror motor drive voltage Driver door mirror surface moving upward → stopped 11 to 14 V → Below 1 V
      z12-10 (M+) - z12-1 (MV) R - V Vertical mirror motor drive voltage Driver door mirror surface moving downward → stopped 11 to 14 V → Below 1 V
      z12-10 (M+) - z12-9 (MH) R - BR Horizontal mirror motor drive voltage Driver door mirror surface moving right → stopped 11 to 14 V → Below 1 V
      z12-9 (MH) - z12-10 (M+) BR - R Horizontal mirror motor drive voltage Driver door mirror surface moving left → stopped 11 to 14 V → Below 1 V
      z12-4 (HTR+) - z12-12 (TRN-) B-G - W Mirror heater relay drive voltage Mirror heater switch (rear window defogger switch) on 11 to 14 V
      z12-5 (VDD) - N4-7 (GND) O - W-B Mirror position sensor power supply Engine switch on (IG) 4.75 to 5.25 V
      z12-6 (VSSR) - N4-7 (GND) W-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V
      z12-13 (HSSR) - N4-7 (GND) Y-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      z13-3 (MR) - Body ground SB - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (driver door) being retracted 11 to 14 V
      Outer rear view mirror assembly (driver door) stopped Below 1 V
      z13-11 (MF) - Body ground LG - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (driver door) returning 11 to 14 V
      Outer rear view mirror assembly (driver door) stopped Below 1 V
      z13-1 (MV) - z13-10 (M+) V - R Vertical mirror motor drive voltage Driver door mirror surface moving upward → stopped 11 to 14 V → Below 1 V
      z13-10 (M+) - z13-1 (MV) R - V Vertical mirror motor drive voltage Driver door mirror surface moving downward → stopped 11 to 14 V → Below 1 V
      z13-10 (M+) - z13-9 (MH) R - BR Horizontal mirror motor drive voltage Driver door mirror surface moving right → stopped 11 to 14 V → Below 1 V
      z13-9 (MH) - z13-10 (M+) BR - R Horizontal mirror motor drive voltage Driver door mirror surface moving left → stopped 11 to 14 V → Below 1 V
      z13-4 (HTR+) - z13-12 (TRN-) B-G - W Mirror heater relay drive voltage Mirror heater switch (rear window defogger switch) on 11 to 14 V
      z13-5 (VDD) - M4-7 (GND) O - W-B Mirror position sensor power supply Engine switch on (IG) 4.75 to 5.25 V
      z13-6 (VSSR) - M4-7 (GND) W-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V
      z13-13 (HSSR) - M4-7 (GND) Y-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V

  2. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR)

    A01RCEFC17
    *A for LHD *B for RHD

    1. Disconnect the M4*1 or N4*2 outer mirror control ECU assembly (front passenger door) connector.


      • *1: for LHD

      • *2: for RHD

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      M4-14 (BDR) - Body ground G - Body ground +B power supply Always 11 to 14 V
      M4-6 (CPUB) - Body ground GR - Body ground +B power supply Always 11 to 14 V
      M4-5 (SIG) - Body ground B - Body ground Ignition power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V
      M4-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N4-14 (BDR) - Body ground L - Body ground +B power supply Always 11 to 14 V
      N4-6 (CPUB) - Body ground L - Body ground +B power supply Always 11 to 14 V
      N4-5 (SIG) - Body ground Y - Body ground Ignition power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V
      N4-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the M4*1 or N4*2 outer mirror control ECU assembly (front passenger door) connector.


      • *1: for LHD

      • *2: for RHD

    4. Measure the voltage according to the value(s) in the table below.

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      z13-3 (MR) - Body ground SB - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (front passenger door) being retracted 11 to 14 V
      Outer rear view mirror assembly (front passenger door) stopped Below 1 V
      z13-11 (MF) - Body ground LG - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (front passenger door) returning 11 to 14 V
      Outer rear view mirror assembly (front passenger door) stopped Below 1 V
      z13-1 (MV) - z13-10 (M+) V - R Vertical mirror motor drive voltage Front passenger door mirror surface moving upward → stopped 11 to 14 V → Below 1 V
      z13-10 (M+) - z13-1 (MV) R - V Vertical mirror motor drive voltage Front passenger door mirror surface moving downward → stopped 11 to 14 V → Below 1 V
      z13-10 (M+) - z13-9 (MH) R - BR Horizontal mirror motor drive voltage Front passenger door mirror surface moving right → stopped 11 to 14 V → Below 1 V
      z13-9 (MH) - z13-10 (M+) BR - R Horizontal mirror motor drive voltage Front passenger door mirror surface moving left → stopped 11 to 14 V → Below 1 V
      z13-4 (HTR+) - z13-12 (TRN-) B-G - W Mirror heater relay drive voltage Mirror heater switch (rear window defogger switch) on 11 to 14 V
      z13-5 (VDD) - M4-7 (GND) O - W-B Mirror position sensor power supply Engine switch on (IG) 4.75 to 5.25 V
      z13-6 (VSSR) - M4-7 (GND) W-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V
      z13-13 (HSSR) - M4-7 (GND) Y-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      z12-3 (MR) - Body ground SB - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (front passenger door) being retracted 11 to 14 V
      Outer rear view mirror assembly (front passenger door) stopped Below 1 V
      z12-11 (MF) - Body ground LG - Body ground Power retract mirror motor drive voltage Outer rear view mirror assembly (front passenger door) returning 11 to 14 V
      Outer rear view mirror assembly (front passenger door) stopped Below 1 V
      z12-1 (MV) - z12-10 (M+) V - R Vertical mirror motor drive voltage Front passenger door mirror surface moving upward → stopped 11 to 14 V → Below 1 V
      z12-10 (M+) - z12-1 (MV) R - V Vertical mirror motor drive voltage Front passenger door mirror surface moving downward → stopped 11 to 14 V → Below 1 V
      z12-10 (M+) - z12-9 (MH) R - BR Horizontal mirror motor drive voltage Front passenger door mirror surface moving right → stopped 11 to 14 V → Below 1 V
      z12-9 (MH) - z12-10 (M+) BR - R Horizontal mirror motor drive voltage Front passenger door mirror surface moving left → stopped 11 to 14 V → Below 1 V
      z12-4 (HTR+) - z12-12 (TRN-) B-G - W Mirror heater relay drive voltage Mirror heater switch (rear window defogger switch) on 11 to 14 V
      z12-5 (VDD) - N4-7 (GND) O - W-B Mirror position sensor power supply Engine switch on (IG) 4.75 to 5.25 V
      z12-6 (VSSR) - N4-7 (GND) W-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V
      z12-13 (HSSR) - N4-7 (GND) Y-B - W-B Mirror position sensor signal Engine switch on (IG) 0 to 5 V