SLIDING ROOF SYSTEM TERMINALS OF ECU


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


    1. A000OW3E03

      Disconnect the Y4 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.

      Tech Tips

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      Y4-8 (B) - Y4-12 (E) L - W-B +B Power supply Always 11 to 14 V
      Y4-1 (IG) - Y4-12 (E) P - W-B IG power supply Power switch off Below 1 V
      Y4-1 (IG) - Y4-12 (E) P - W-B IG power supply Power switch on (IG) 11 to 14 V
      Y4-12 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the Y4 sliding roof drive gear sub-assembly (sliding roof ECU) connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      Y4-7 (OPN) - Y4-12 (E) BR - W-B Sliding roof motor open Power switch on (IG), SLIDE OPEN switch is pressed Below 1 V
      Y4-7 (OPN) - Y4-12 (E) BR - W-B Sliding roof motor open Power switch on (IG), SLIDE OPEN switch is not pressed 11 to 14 V
      Y4-5 (CLS) - Y4-12 (E) SB - W-B Sliding roof motor close Power switch on (IG), SLIDE CLOSE switch is pressed Below 1 V
      Y4-5 (CLS) - Y4-12 (E) SB - W-B Sliding roof motor close Power switch on (IG), SLIDE CLOSE switch is not pressed 11 to 14 V
      Y4-4 (UP) - Y4-12 (E) G - W-B Sliding roof motor up Power switch on (IG), TILT UP switch is pressed Below 1 V
      Y4-4 (UP) - Y4-12 (E) G - W-B Sliding roof motor up Power switch on (IG), TILT UP switch is not pressed 11 to 14 V
      Y4-6 (DWN) - Y4-12 (E) B - W-B Sliding roof motor down Power switch on (IG), TILT DOWN switch is pressed Below 1 V
      Y4-6 (DWN) - Y4-12 (E) B - W-B Sliding roof motor down Power switch on (IG), TILT DOWN switch is not pressed 11 to 14 V
      Y4-11 (LIN) - Y4-12 (E) Y - W-B LIN communication signal Power switch on (IG) Pulse generation