SEAT BELT WARNING SYSTEM TERMINALS OF ECU

  1. CHECK COMBINATION METER ASSEMBLY

    E284755N02

    1. Disconnect the E12 and E13 combination meter assembly connector.

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

      Tip:

      Measure the values on the wire harness side with the connector disconnected.

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      E12-39 (IG+) - Body ground

      P - Body ground

      Ignition power supply (IG signal)

      Ignition switch off

      Below 1 V

      Ignition switch ON

      11 to 14 V

      E12-38 (ET) - Body ground

      WB - Body ground

      Ground

      Always

      Below 1 Ω

      E12-14 (BKL) - Body ground

      W - Body ground

      Driver seat belt buckle switch signal

      Driver seat belt fastened

      10 kΩ or higher

      Driver seat belt unfastened

      Below 1 Ω

      E12-13 (P/SB) - Body ground

      B - Body ground

      Front passenger seat belt buckle switch signal

      Front passenger seat occupied, seat belt fastened

      10 kΩ or higher

      Front passenger seat occupied, seat belt unfastened

      Below 1 Ω

      E12-11 (RRSB) - Body ground

      V - Body ground

      Rear RH seat belt buckle switch signal

      Rear RH seat belt fastened

      10 kΩ or higher

      Rear RH seat belt unfastened

      Below 1 Ω

      E12-12 (RLSB) - Body ground

      SB - Body ground

      Rear LH seat belt buckle switch signal

      Rear LH seat belt fastened

      10 kΩ or higher

      Rear LH seat belt unfastened

      Below 1 Ω

      E13-1 (DCTY) - Body ground

      P - Body ground

      Front door courtesy light switch assembly (driver door) signal

      Driver door closed (OFF)

      10 kΩ or higher

      Driver door open (ON)

      Below 1 Ω

      E13-2 (PCTY) - Body ground

      L - Body ground

      Door courtesy light switch (except driver door) signal

      Any door (except driver door) closed (OFF)

      10 kΩ or higher

      Any door (except driver door) open (ON)

      Below 1 Ω