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


  1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY LH

    A01HEQ2N63

    1. Disconnect the M5 ECU connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      M5-5 (SIG) - M5-7 (GND) GR - W-B Power source Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      M5-6 (CPUB) - M5-7 (GND) GR - W-B Power source Always 11 to 14 V
      M5-14 (BDR) - M5-7 (GND) Y - W-B Power source Always 11 to 14 V
      M5-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the M5 ECU connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      B-3 (MR) - Body ground SB - Body ground Power retract mirror motor drive voltage

      • Engine switch on (ACC)

      • Outer rear view mirror assembly being retracted

      		 11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly stopped

      		 Below 1 V
      B-11 (MF) - Body ground LG - Body ground Power retract mirror motor drive voltage

      • Engine switch on (ACC)

      • Outer rear view mirror assembly returning

      		 11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly stopped

      		 Below 1 V
      B-1 (MV) - Body ground V - Body ground Mirror motor drive voltage

      • 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
      B-9 (MH) - Body ground BR - Body ground Mirror motor drive voltage

      • 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
      B-10 (M+) - Body ground R - Body ground Mirror motor drive voltage

      • 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
      B-4 (HTR+) - B-12 (TRN-)*1 B-G - W Mirror heater drive voltage

      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) on

      		 11 to 14 V

      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) off

      		 Below 1 V
      B-5 (VDD) - B-14 (GND) O - GR Mirror position sensor power supply Engine switch on (IG) 4.5 to 5.5 V
      Engine switch off Below 1 V
      B-6 (VSSR) - Body ground W-B - Body ground Vertical direction position sensor signal

      • Engine switch on (ACC)

      • Mirror surface moving upward or downward

      		 Changes within range of 0 to 5 V
      B-13 (HSSR) - Body ground Y-B - Body ground Horizontal direction position sensor signal

      • Engine switch on (ACC)

      • Mirror surface moving left or right

      		 Changes within range of 0 to 5 V
      M5-2 (M1) - M5-7 (GND)*2 G - W-B Seat memory switch M1 signal

      • Engine switch on (IG)

      • Seat memory switch M1 off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M1 on

      		 Below 1 V
      M5-3 (M2) - M5-7 (GND)*2 P - W-B Seat memory switch M2 signal

      • Engine switch on (IG)

      • Seat memory switch M2 off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M2 on

      		 Below 1 V
      M5-4 (M3) - M5-7 (GND)*2 B - W-B Seat memory switch M3 signal

      • Engine switch on (IG)

      • Seat memory switch M3 off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M3 on

      		 Below 1 V
      M5-1 (MM) - M5-7 (GND)*2 L - W-B Seat memory switch SET signal

      • Engine switch on (IG)

      • Seat memory switch SET off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch SET on

      		 Below 1 V

      • *1: w/ Mirror Heater

      • *2: for LHD

  2. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY RH

    A01HEQ2N62

    1. Disconnect the L5 ECU connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L5-5 (SIG) - L5-7 (GND) P - W-B Power source Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      L5-6 (CPUB) - L5-7 (GND) B - W-B Power source Always 11 to 14 V
      L5-14 (BDR) - L5-7 (GND) LG - W-B Power source Always 11 to 14 V
      L5-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the L5 ECU connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      A-3 (MR) - Body ground SB - Body ground Power retract mirror motor drive voltage

      • Engine switch on (ACC)

      • Outer rear view mirror assembly being retracted

      		 11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly stopped

      		 Below 1 V
      A-11 (MF) - Body ground LG - Body ground Power retract mirror motor drive voltage

      • Engine switch on (ACC)

      • Outer rear view mirror assembly returning

      		 11 to 14 V

      • Engine switch on (ACC)

      • Outer rear view mirror assembly stopped

      		 Below 1 V
      A-1 (MV) - Body ground V - Body ground Mirror motor drive voltage

      • 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
      A-9 (MH) - Body ground BR - Body ground Mirror motor drive voltage

      • 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
      A-10 (M+) - Body ground R - Body ground Mirror motor drive voltage

      • 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
      A-4 (HTR+) - A-12 (TRN-)*1 B-G - W Mirror heater drive voltage

      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) on

      		 11 to 14 V

      • Engine switch on (IG)

      • Rear window defogger switch (mirror heater switch) off

      		 Below 1 V
      A-5 (VDD) - A-14 (GND) O - GR Mirror position sensor power supply Engine switch on (IG) 4.75 to 5.25 V
      Engine switch off Below 1 V
      A-6 (VSSR) - Body ground W-B - Body ground Vertical direction position sensor signal

      • Engine switch on (ACC)

      • Mirror surface moving upward or downward

      		 Changes within range of 0 to 5 V
      A-13 (HSSR) - Body ground Y-B - Body ground Horizontal direction position sensor signal

      • Engine switch on (ACC)

      • Mirror surface moving left or right

      		 Changes within range of 0 to 5 V
      L5-2 (M1) - L5-7 (GND)*2 G - W-B Seat memory switch M1 signal

      • Engine switch on (IG)

      • Seat memory switch M1 off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M1 on

      		 Below 1 V
      L5-3 (M2) - L5-7 (GND)*2 P - W-B Seat memory switch M2 signal

      • Engine switch on (IG)

      • Seat memory switch M2 off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M2 on

      		 Below 1 V
      L5-4 (M3) - L5-7 (GND)*2 B - W-B Seat memory switch M3 signal

      • Engine switch on (IG)

      • Seat memory switch M3 off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch M3 on

      		 Below 1 V
      L5-1 (MM) - L5-7 (GND)*2 L - W-B Seat memory switch SET signal

      • Engine switch on (IG)

      • Seat memory switch SET off

      		 11 to 14 V

      • Engine switch on (IG)

      • Seat memory switch SET on

      		 Below 1 V

      • *1: w/ Mirror Heater

      • *2: for RHD

  3. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    B008IJ6C18
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    1. Measure the voltage and pulse according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      I49-4 (MIRB) - I49-6 (MIRE)

      V - GR*1

      B - GR*2

      		 Mirror surface adjust switch signal

      • Engine switch on (ACC)

      • Mirror surface adjust switch up

      		 Below 1.7 V

      • Engine switch on (ACC)

      • Mirror surface adjust switch right

      		 Below 2.7 V

      • Engine switch on (ACC)

      • Mirror surface adjust switch down

      		 Below 3.5 V

      • Engine switch on (ACC)

      • Mirror surface adjust switch left

      		 Below 4 V

      • Engine switch on (ACC)

      • Mirror surface adjust switch off

      		 3.8 to 5 V
      I49-5 (MIRS) - I49-6 (MIRE)

      B - GR*1

      SB - GR*2

      		 Mirror select switch signal

      • Engine switch on (ACC)

      • Mirror select switch L

      		 Below 2 V

      • Engine switch on (ACC)

      • Mirror select switch R

      		 Below 1 V

      • Engine switch on (ACC)

      • Mirror select switch off

      		 3.8 to 5 V
      I47-14 (RET) - 4D-9 (GND1)

      G - W-B*1

      LG - W-B*2

      		 Mirror retract switch signal

      • Engine switch on (ACC)

      • Mirror retract switch not in return position

      		 Pulse generation (See waveform 1 or 2)

      • Engine switch on (ACC)

      • Mirror retract switch in return position

      		 Below 1 V
      I47-15 (RTR) - 4D-9 (GND1)

      LG - W-B*1

      G - W-B*2

      		 Mirror retract switch signal

      • Engine switch on (ACC)

      • Mirror retract switch not in retract position

      		 Pulse generation (See waveform 1 or 2)

      • Engine switch on (ACC)

      • Mirror retract switch in retract position

      		 Below 1 V

      *1: for LHD

      *2: for RHD

    2. A01HIA2E02

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) I47-14 (RET) or I47-15 (RTR) - 4D-9 (GND1)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition

      • Engine switch on (ACC)

      • Mirror retract switch not in retract position
    3. A01HK3UE02

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) I47-14 (RET) or I47-15 (RTR) - 4D-9 (GND1)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition

      • Engine switch on (ACC)

      • Mirror retract switch not in retract position