LUGGAGE COMPARTMENT DOOR OPENER SYSTEM TERMINALS OF ECU


  1. CHECK COWL SIDE JUNCTION BLOCK LH AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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    Text in Illustration
    *1 Main Body ECU (Multiplex Network Body ECU) - -

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

    2. Connect the cowl side junction block LH connectors.

    3. 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-11(GND1) - Body ground None - Body ground Ground Always Below 1 Ω
      A-29 (ACC) - Body ground None - Body ground ACC power supply Engine switch on (ACC) 11 to 14 V
      Engine switch off Below 1 V
      A-30 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      A-31 (ALTB) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      A-32 (IG) - Body ground None - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V

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

    4. Install the main body ECU (multiplex network body ECU) to the cowl side junction block LH Click here.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N13-5 (TMSW) - Body ground G - Body ground Luggage door opening cancel switch signal Luggage door opening cancel switch on Below 1 V
      Engine switch off, all doors closed and luggage door opening cancel switch off Pulse generation
      N13-8 (TSW) - Body ground Y - Body ground Luggage door opening switch signal Luggage door opening switch on Below 1 V
      Engine switch off, all doors closed and luggage door opening switch off Pulse generation
      N12-19 (LGCY) - Body ground* P - Body ground Luggage compartment door courtesy light switch assembly input signal Luggage compartment door open Below 1 V
      Luggage compartment door close 11 to 14 V
      N12-23 (TKUL) - Body ground GR - Body ground Luggage compartment door lock cylinder signal Engine switch off, luggage compartment door lock cylinder operated Below 1 V
      Engine switch off, luggage compartment door lock cylinder not operated Pulse generation

      • *: w/o Power Trunk Lid System

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

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    *A for LHD *B for RHD

    1. Disconnect the A34 and N93 certification ECU (smart key ECU assembly) connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A34-2 (+B) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      N93-5 (IG) - Body ground B - Body ground Ignition power supply Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      A34-10 (CUTB) - Body ground P - Body ground Dark current cut fuse pin input signal Always 11 to 14 V
      A34-11 (E) - Body ground

      W-B - Body ground*1

      BR - Body ground*2

      		 Ground Always Below 1 Ω

      • *1: for LHD

      • *2: for RHD

    3. Reconnect the A34 and N93 certification ECU (smart key ECU assembly) connectors.

    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
      T2-27 (TSW5) - A34-11 (E) SB - W-B Luggage electrical key switch input signal Engine switch on (IG), luggage compartment door is fully closed and luggage electrical key switch off Pulse generation
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      U2-27 (TSW5) - A34-11 (E) SB - BR Luggage electrical key switch input signal Engine switch on (IG), luggage compartment door is fully closed and luggage electrical key switch off Pulse generation

  3. CHECK LUGGAGE CLOSER MOTOR ASSEMBLY (w/ Power Trunk Lid System) Click here