POWER MIRROR CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY LH

    A01WRN7E03

    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 (IG) 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 and resistance 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 (IG)

      • Outer rear view mirror assembly LH being retracted

      		 11 to 14 V

      • Engine switch on (IG)

      • 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 (IG)

      • Outer rear view mirror assembly LH retuning

      		 11 to 14 V

      • Engine switch on (IG)

      • Outer rear view mirror assembly LH stopped

      		 Below 1 V
      I40-1 (LMVR) - Body ground R - Body ground Mirror motor output

      • Engine switch on (IG)

      • Mirror surface stopped

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving downward or left

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving upward

      		 11 to 14 V
      I40-9 (LMHR) - Body ground G - Body ground Mirror motor output

      • Engine switch on (IG)

      • Mirror surface stopped

      		 Below 1 Ω

      • Engine switch on (IG)

      • Mirror surface moving upward or right

      		 Below 1 Ω

      • Engine switch on (IG)

      • Mirror surface moving left

      		 11 to 14 V
      I40-10 (LM+R) - Body ground P - Body ground Mirror motor output

      • Engine switch on (IG)

      • Outer mirror LH stopped

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving upward or left

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving downward or right

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

      • Engine switch on (IG)

      • Mirror surface moving upward or downward

      		 Voltage fluctuates between 0 to 5 V
      I40-13 (HSSR) - Body ground B - Body ground Horizontal direction position sensor signal

      • Engine switch on (IG)

      • Mirror surface moving left or right

      		 Voltage fluctuates between 0 to 5 V
      I40-4 (HTR+) - I40-12 (HTR-) 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)* 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)* 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)* 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)* 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

      • *: for LHD

  2. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY RH

    A01WUTME03

    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 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 (IG)

      • Outer rear view mirror assembly RH being retracted

      		 11 to 14 V

      • Engine switch on (IG)

      • 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 (IG)

      • Outer rear view mirror assembly LH retuning

      		 11 to 14 V

      • Engine switch on (IG)

      • Outer rear view mirror assembly LH stopped

      		 Below 1 V
      I37-1 (RMVR) - Body ground R - Body ground Mirror motor output

      • Engine switch on (IG)

      • Mirror surface stopped

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving downward or left

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving upward

      		 11 to 14 V
      I37-9 (RMHR) - Body ground G - Body ground Mirror motor output

      • Engine switch on (IG)

      • Mirror surface stopped

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving upward or right

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving left

      		 11 to 14 V
      I37-10 (RM+R) - Body ground P - Body ground Mirror motor output

      • Engine switch on (IG)

      • Mirror surface stopped

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving upward or left

      		 Below 1 V

      • Engine switch on (IG)

      • Mirror surface moving downward or right

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

      • Engine switch on (IG)

      • Mirror surface moving upward or downward

      		 Voltage fluctuates between 0 to 5 V
      I37-13 (HSSR) - Body ground L - Body ground Horizontal direction position sensor signal

      • Engine switch on (IG)

      • Mirror surface moving left or right

      		 Voltage fluctuates between 0 to 5 V
      I37-4 (HTR+) - I37-12 (HTR-) 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)* 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)* 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)* 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)* 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

      • *: for RHD

  3. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND COWL SIDE JUNCTION BLOCK LH Click here

  4. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here