SLIDING ROOF SYSTEM TERMINALS OF ECU

  1. CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU)

    1. B338692N03

      Disconnect the Q8 sliding roof drive gear sub-assembly (sliding roof ECU) 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.

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      Q8-1 (IG) - Body ground

      B - Body ground

      IG power supply

      Power switch off

      Below 1 V

      Q8-1 (IG) - Body ground

      B - Body ground

      IG power supply

      Power switch on (IG)

      11 to 14 V

      Q8-8 (B) - Body ground

      L - Body ground

      Battery power supply

      Power switch off

      11 to 14 V

      Q8-12 (E) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

    3. Reconnect the Q8 sliding roof drive gear sub-assembly (sliding roof ECU) connector.

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      Q8-7 (OPN) - Body ground

      R - Body ground

      Sliding roof motor open

      Power switch on (IG), OPEN switch on

      Below 1 V

      Q8-7 (OPN) - Body ground

      R - Body ground

      Sliding roof motor open

      Power switch on (IG), OPEN switch off

      11 to 14 V

      Q8-5 (CLS) - Body ground

      B - Body ground

      Sliding roof motor close

      Power switch on (IG), CLOSE switch on

      Below 1 V

      Q8-5 (CLS) - Body ground

      B - Body ground

      Sliding roof motor close

      Power switch on (IG), CLOSE switch off

      11 to 14 V

      Q8-4 (UP) - Body ground

      G - Body ground

      Sliding roof motor up

      Power switch on (IG), UP switch on

      Below 1 V

      Q8-4 (UP) - Body ground

      G - Body ground

      Sliding roof motor up

      Power switch on (IG), UP switch off

      11 to 14 V

      Q8-6 (DWN) - Body ground

      GR - Body ground

      Sliding roof motor down

      Power switch on (IG), DOWN switch on

      Below 1 V

      Q8-6 (DWN) - Body ground

      GR - Body ground

      Sliding roof motor down

      Power switch on (IG), DOWN switch off

      11 to 14 V

      Q8-11 (MPX1)

      V

      LIN communication line

      -

      -