BACK DOOR CLOSER SYSTEM TERMINALS OF ECU


  1. CHECK MULTIPLEX NETWORK DOOR ECU

    A018KO2N02

    1. Disconnect the X6 and X7 multiplex network door ECU connectors.

    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
      X6-1 (ECUB) - Body ground BE - Body ground Battery power supply Always 11 to 14 V
      X6-7 (IG) - Body ground Y - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      X6-7 (IG) - Body ground Y - Body ground IG power supply Engine switch off Below 1 V
      X7-8 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      X7-7 (GND) - Body ground W-B - Body ground Body ground Always Below 1 Ω

    3. Reconnect the X6 and X7 multiplex network door ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      X7-10 (DC+) - X7-9 (DC-) LA-V - LA-W Back door lock assembly (back door lock motor) circuit Back door lock motor operating 11 to 14 V
      X7-10 (DC+) - X7-9 (DC-) LA-V - LA-W Back door lock assembly (back door lock motor) circuit Back door lock motor not operating Below 1 V
      X6-19 (FUL) - Body ground L - Body ground Back door lock assembly (back door courtesy switch) signal circuit Back door closed → open 11 to 14 V → Below 1 V
      X6-21 (HAF) - Body ground BE - Body ground Back door lock assembly (latch switch) signal circuit Back door closed → fully open 11 to 14 V → Below 1 V
      X6-24 (POS) - Body ground GR - Body ground Back door lock assembly (sector switch) signal circuit Back door open → Back door closer operating → Back door closed Below 1 V → 11 to 14 V → Below 1 V

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B003ZN2N18

    1. Disconnect the F10 and F13 certification ECU (smart key ECU assembly) connectors.

    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
      F13-10 (+B) - Body ground GR - Body ground Battery power supply Always 11 to 14 V
      F10-4 (CUTB) - Body ground BE - Body ground Battery power supply Always 11 to 14 V
      F13-11 (E) - Body ground W-B - Body ground Body ground Always Below 1 Ω

    3. Reconnect the F10 and F13 certification ECU (smart key ECU assembly) connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F10-3 (IG1D) - Body ground G - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      F10-3 (IG1D) - Body ground G - Body ground IG power supply Engine switch off Below 1 V
      F12-5 (TSW5) - Body ground R - Body ground Back door opener switch assembly signal Back door opener switch assembly off Pulse generation
      F12-5 (TSW5) - Body ground R - Body ground Back door opener switch assembly signal Back door opener switch assembly on Below 1 V