THEFT DETERRENT SYSTEM TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU

    A000Y1FE05

    1. Disconnect the L15 and L16 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L15-1 (+B1) - Body ground L - Body ground +B power supply Always 11 to 14 V
      L15-18 (IG) - Body ground L - Body ground IG power supply Power switch ON (IG) 11 to 14 V
      L15-17 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the L15 and L16 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L15-2 (IND) - Body ground L - Body ground Security indicator signal Security indicator illuminates (illuminates only for 60 sec. in alarm sounding state (it is blinking when system is in armed state)) 3 to 6 V
      L16-7 (SSCL)*1 - Body ground BE - Body ground Theft warning siren signal Theft warning siren is sounding (theft warning system is in alarm sounding state) Pulse generation
      L16-4 (IOUT)*2 - Body ground W - Body ground Intrusion sensor signal input No moving object is detected 11 to 14 V
      Moving object is detected during arming preparation state or armed state Pulse generation
      L16-5 (SSW1)*2 - Body ground R - Body ground Intrusion sensor cancel switch signal Intrusion sensor cancel switch ON Below 1 V
      Intrusion sensor cancel switch OFF 11 to 14 V
      L16-21 (INCS)*3 - Body ground P - Body ground Tilt sensor signal input Vehicle tilt is not detected 11 to 14 V
      Vehicle tilt is detected during arming preparation state or armed state Pulse generation

      Tech Tips

      *1: w/ Theft Warning Siren

      *2: w/ Intrusion Sensor

      *3: w/ Tilt Sensor

  2. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

    A000Z6AE19

    1. Disconnect the DA and DF ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      DA-40 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DF-1 (ALTB) - Body ground B - Body ground ECU power supply Always 11 to 14 V

  3. CHECK FRONT DOOR ECU LH

    A000XXPE03

    1. Disconnect the N10 ECU connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N10-11 (CPUB) - Body ground

      B*1 - Body ground

      R*2 - Body ground

      		 ECU power supply Always 11 to 14 V
      N10-6 (BDR) - Body ground BE - Body ground ECU power supply Always 11 to 14 V
      N10-3 (SIG) - Body ground

      L*1 - Body ground

      V*2 - Body ground

      		 IG power supply Power switch ON (IG) 11 to 14 V
      N10-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      Tech Tips

      *1: for LHD

      *2: for RHD


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

    3. Reconnect the N10 ECU connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N10-23 (SID1) - Body ground L - Body ground Security indicator signal Security indicator illuminates (illuminates only for 60 seconds. in alarm sounding state (it is blinking when system is in armed state)) 3 to 6 V

  4. CHECK FRONT DOOR ECU RH

    A000URLE03

    1. Disconnect the N1 ECU connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N1-11 (CPUB) - Body ground

      R*1 - Body ground

      B*2 - Body ground

      		 ECU power supply Always 11 to 14 V
      N1-6 (BDR) - Body ground BE - Body ground ECU power supply Always 11 to 14 V
      N1-3 (SIG) - Body ground

      V*1 - Body ground

      L*2 - Body ground

      		 IG power supply Power switch ON (IG) 11 to 14 V
      N1-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      Tech Tips

      *1: for LHD

      *2: for RHD


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

    3. Reconnect the N1 ECU connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N1-23 (SID1) - Body ground L - Body ground Security indicator signal Security indicator illuminates (illuminates only for 60 seconds. in alarm sounding state (it is blinking when system is in armed state)) 3 to 6 V

  5. CHECK FRONT CONTROLLER

    A000X8VE12

    1. Disconnect the A50, A51, A52 and B14 front controller connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A52-5 (ALTB) - Body ground L - Body ground +B power supply Always 11 to 14 V
      A52-1 (BATB) - Body ground P - Body ground +B power supply Always 11 to 14 V
      A50-1 (FMB3) - Body ground LG - Body ground +B power supply Always 11 to 14 V
      A50-5 (FMIG) - Body ground Y - Body ground IG power supply Power switch ON (IG) 11 to 14 V
      A50-2 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the A50, A51, A52 and B14 front controller connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A52-4 (SH-) - Body ground W - Body ground Security horn signal Security horn is sounding (theft deterrent system is in alarm sounding state) Pulse generation
      B14-21 (HDCY) - Body ground G - Body ground Engine hood courtesy switch signal Engine hood closed 10 kΩ or higher
      Engine hood open Below 1 Ω