POWER MIRROR CONTROL SYSTEM(w/ Retract Mirror) TERMINALS OF ECU


  1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY LH

    B001ZW7E02

    1. Disconnect the I41 outer mirror control ECU assembly LH connector.

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

      Terminal No.

      (Symbol)

      Wiring Color Terminal Description Condition Specified Condition
      I41-5 (SIG) - I41-7 (GND) B - W-B ACC power supply Engine switch off Below 1 V
      Engine switch on (ACC) 11 to 14 V
      I41-6 (CPUB) - I41-7 (GND) G - W-B Battery (ECU power source) Always 11 to 14 V
      I41-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      I41-14 (BDR) - I41-7 (GND) L - W-B Battery (ECU power source) Always 11 to 14 V
    3. Reconnect the I41 outer mirror control ECU assembly LH connector.

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

      Terminal No.

      (Symbol)

      Wiring Color Terminal Description Condition Specified Condition
      I40-3 (MR+) - Body ground R - Body ground Mirror retract motor output (retracting)
      • Engine switch on (ACC)

      • Outer rear view mirror assembly LH being retracted

      11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly LH stopped

      Below 1 V
      I40-11 (MR-) - Body ground BR - Body ground Mirror retract motor output (returning)
      • Engine switch on (ACC)

      • Outer rear view mirror assembly LH retuning

      11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly LH stopped

      Below 1 V
      I40-1 (LMVR) - Body ground R - Body ground Mirror motor output
      • Engine switch on (ACC)

      • Mirror surface stopped

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving downward or left

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving upward

      11 to 14 V
      I40-9 (LMHR) - Body ground G - Body ground Mirror motor output
      • Engine switch on (ACC)

      • Mirror surface stopped

      Below 1 Ω

      • Engine switch on (ACC)

      • Mirror surface moving upward or right

      Below 1 Ω

      • Engine switch on (ACC)

      • Mirror surface moving left

      11 to 14 V
      I40-10 (LM+R) - Body ground P - Body ground Mirror motor output
      • Engine switch on (ACC)

      • Outer mirror LH stopped

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving upward or left

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving downward or right

      11 to 14 V
      I40-5 (LVC) - I40-14 (LE1)*1 W - LG Mirror position sensor power supply Engine switch off Below 1 V
      Engine switch on (IG) 4.5 to 5.5 V
      I40-6 (VSSR) - Body ground*1 L - Body ground Vertical direction position sensor signal
      • Engine switch on (ACC)

      • Mirror surface moving upward or downward

      Voltage fluctuates between 0 to 5 V
      I40-13 (HSSR) - Body ground*1 B - Body ground Horizontal direction position sensor signal
      • Engine switch on (ACC)

      • Mirror surface moving left or right

      Voltage fluctuates between 0 to 5 V
      I40-4 (HTR+) - I40-12 (HTR-)*2 LG - L Mirror heater drive voltage
      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) off

      Below 1 V

      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) on

      11 to 14 V
      I41-2 (M1) - I41-7 (GND)*1, *3 G - W-B Seat memory switch M1 signal
      • Engine switch on (IG)

      • Seat memory switch M1 on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M1 off

      Below 1 V
      I41-3 (M2) - I41-7 (GND)*1, *3 W - W-B Seat memory switch M2 signal
      • Engine switch on (IG)

      • Seat memory switch M2 on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M2 off

      Below 1 V
      I41-4 (M3) - I41-7 (GND)*1, *3 R - W-B Seat memory switch M3 signal
      • Engine switch on (IG)

      • Seat memory switch M3 on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M3 off

      Below 1 V
      I41-1 (MM) - I41-7 (GND)*1, *3 B - W-B Seat memory switch SET signal
      • Engine switch on (IG)

      • Seat memory switch SET on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch SET off

      Below 1 V

      • *1: w/ Memory

      • *2: w/ Mirror Heater

      • *3: for LHD

  2. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY RH

    B001X3XE02

    1. Disconnect the I38 outer mirror control ECU assembly RH connector.

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

      Terminal No.

      (Symbol)

      Wiring Color Terminal Description Condition Specified Condition
      I38-5 (SIG) - I38-7 (GND) B - W-B ACC power supply Engine switch off (IG) Below 1 V
      Engine switch on (IG) 11 to 14 V
      I38-6 (CPUB) - I38-7 (GND) G - W-B Battery (ECU power source) Always 11 to 14 V
      I38-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      I38-14 (BDR) - I38-7 (GND) L - W-B Battery (ECU power source) Always 11 to 14 V
    3. Reconnect the I38 outer mirror control ECU RH connector.

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

      Terminal No.

      (Symbol)

      Wiring Color Terminal Description Condition Specified Condition
      I37-3 (MR+) - Body ground G- Body ground Mirror retract motor output (retracting)
      • Engine switch on (ACC)

      • Outer rear view mirror assembly RH being retracted

      11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly RH stopped

      Below 1 V
      I37-11 (MR-) - Body ground LG - Body ground Mirror retract motor output (returning)
      • Engine switch on (ACC)

      • Outer rear view mirror assembly LH retuning

      11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly LH stopped

      Below 1 V
      I37-1 (RMVR) - Body ground R - Body ground Mirror motor output
      • Engine switch on (ACC)

      • Mirror surface stopped

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving downward or left

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving upward

      11 to 14 V
      I37-9 (RMHR) - Body ground G - Body ground Mirror motor output
      • Engine switch on (ACC)

      • Mirror surface stopped

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving upward or right

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving left

      11 to 14 V
      I37-10 (RM+R) - Body ground P - Body ground Mirror motor output
      • Engine switch on (ACC)

      • Mirror surface stopped

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving upward or left

      Below 1 V

      • Engine switch on (ACC)

      • Mirror surface moving downward or right

      11 to 14 V
      I37-5 (RVC) - I37-14 (RE1)*1 B - R Mirror position sensor power supply Engine switch off Below 1 V
      Engine switch on (IG) 4.5 to 5.5 V
      I37-6 (VSSR) - Body ground*1 SB - Body ground Vertical direction position sensor signal
      • Engine switch on (ACC)

      • Mirror surface moving upward or downward

      Voltage fluctuates between 0 to 5 V
      I37-13 (HSSR) - Body ground*1 L - Body ground Horizontal direction position sensor signal
      • Engine switch on (ACC)

      • Mirror surface moving left or right

      Voltage fluctuates between 0 to 5 V
      I37-4 (HTR+) - I37-12 (HTR-)*2 SB - L Mirror heater drive voltage
      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) off

      Below 1 V

      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) on

      11 to 14 V
      I38-2 (M1) - I38-7(GND)*1, *3 G - W-B Seat memory switch M1 signal
      • Engine switch on (IG)

      • Seat memory switch M1 on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M1 off

      Below 1 V
      I38-3 (M2) - I38-7(GND)*1, *3 W - W-B Seat memory switch M2 signal
      • Engine switch on (IG)

      • Seat memory switch M2 on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M2 off

      Below 1 V
      I38-4 (M3) - I38-7(GND)*1, *3 R - W-B Seat memory switch M3 signal
      • Engine switch on (IG)

      • Seat memory switch M3 on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M3 off

      Below 1 V
      I38-1 (MM) - I38-7(GND)*1, *3 B - W-B Seat memory switch SET signal
      • Engine switch on (IG)

      • Seat memory switch SET on

      11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch SET off

      Below 1 V

      • *1: w/ Memory

      • *2: w/ Mirror Heater

      • *3: for LHD

  3. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), COWL SIDE JUNCTION BLOCK LH

    B001ZQVE02

    1. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH.


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

      Terminal No.

      (Symbol)

      Wiring Color Terminal Description Condition Specified Condition
      A-32 (IG) - Body ground - IG power supply Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      A-30 (ACC) - Body ground - ACC power supply Engine switch off Below 1 V
      Engine switch on (ACC) 11 to 14 V
      A-31 (BECU) - Body ground - BECU power supply Always 11 to 14 V
      A-11 (GND1) - Body ground - Body ground Always Below 1 Ω
    3. Install the main body ECU (multiplex network body ECU) to the cowl side junction block LH.


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

      Terminal No.

      (Symbol)

      Wiring Color Terminal Description Condition Specified Condition
      E117-14 (RET) - 2J-1 (GND) BE - W-B Mirror retract switch signal
      • Engine switch on (ACC)

      • Retractable outer mirror switch in retract position

      Below 1 V

      • Engine switch on (ACC)

      • Retractable outer mirror switch in return position

      11 to 14 V
      E137-4 (MIRB) - E137-6 (MIRE) B - P Mirror surface adjust switch signal
      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror surface adjust switch) right

      Below 2.7 V

      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror surface adjust switch) left

      Below 4 V

      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror surface adjust switch) down

      Below 3.5 V

      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror surface adjust switch) up

      Below 1.7 V

      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror surface adjust switch) not pushed

      11 to 14 V
      E137-5 (MIRS) - E137-6 (MIRE) W - P Mirror select switch signal
      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror select switch) L

      11 to 14 V

      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror select switch) R

      Below 2 V

      • Engine switch on (ACC)

      • Outer mirror switch assembly (mirror select switch) neutral

      Below 1 V
      E117-15 (AMR) - 2J-1 (GND) L - W-B Mirror retract switch signal
      • Engine switch on (ACC)

      • Retractable outer mirror switch in return position

      11 to 14 V

      • Engine switch on (ACC)

      • Retractable outer mirror switch in auto position

      Below 1 V