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Terminals Of Ecu

WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK SLIDING ROOF DRIVE GEAR SUBASSEMBLY (SLIDING ROOF ECU) 
    Fig 1: Identifying W7 ECU Connector
    G04023964Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the W7 ECU connector.
    2. Measure the resistance and voltage of the wire harness side connector.
      SLIDING ROOF DRIVE GEAR SUBASSEMBLY (SLIDING ROOF ECU) (W7 ECU DISCONNECTED)

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      B (W7-5) - E (W7-7) L - W-B +B Power supply Always 10 to 14 V
      IG (W7-6) - E (W7-7) V - W-B Engine switch power supply Engine switch off Below 1 V
      IG (W7-6) - E (W7-7) V - W-B Engine switch power supply Engine switch on (IG) 10 to 14 V
      OPN (W7-9) - E (W7-7) B - W-B Sliding roof motor open SLIDE OPEN switch OFF 10 kΩ or higher
      OPN (W7-9) - E (W7-7) B - W-B Sliding roof motor open SLIDE OPEN switch ON Below 1 Ω
      CLS (W7-8) - E (W7-7) SB - W-B Sliding roof motor close SLIDE CLOSE switch OFF 10 kΩ or higher
      CLS (W7-8) - E (W7-7) SB - W-B Sliding roof motor close SLIDE CLOSE switch ON Below 1 Ω
      UP (W7-3) - E (W7-7) O - W-B Sliding roof motor up TILT UP switch OFF 10 kΩ or higher
      UP (W7-3) - E (W7-7) O - W-B Sliding roof motor up TILT UP switch ON Below 1 Ω
      DWN (W7-4) - E (W7-7) L - W-B Sliding roof motor down TILT DOWN switch OFF 10 kΩ or higher
      DWN (W7-4) - E (W7-7) L - W-B Sliding roof motor down TILT DOWN switch ON Below 1 Ω
      E (W7-7) - Body ground W-B - Body ground Ground Always Below 1 Ω
    3. Reconnect the W7 ECU connector.
    4. Measure the voltage of the connector.
      SLIDING ROOF DRIVE GEAR SUBASSEMBLY (SLIDING ROOF ECU) (W7 ECU RECONNECTED)

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      OPN (W7-9) - E (W7-7) B - W-B Sliding roof motor open Engine switch on (IG), sliding roof closed, SLIDE OPEN switch OFF Below 1 V
      OPN (W7-9) - E (W7-7) B - W-B Sliding roof motor open Engine switch on (IG), sliding roof closed, SLIDE OPEN switch ON 10 to 14 V
      CLS (W7-8) - E (W7-7) SB - W-B Sliding roof motor close Engine switch on (IG), sliding roof open, SLIDE CLOSE switch OFF Below 1 V
      CLS (W7-8) - E (W7-7) SB - W-B Sliding roof motor close Engine switch on (IG), sliding roof open, SLIDE CLOSE switch ON 10 to 14 V
      UP (W7-3) - E (W7-7) O - W-B Sliding roof motor up Engine switch on (IG), sliding roof tilteddownward, TILT UP switch OFF Below 1 V
      UP (W7-3) - E (W7-7) O - W-B Sliding roof motor up Engine switch on (IG), sliding roof tilted downward, TILT UP switch ON 10 to 14 V
      DWN (W7-4) - E (W7-7) L - W-B Sliding roof motor down Engine switch on (IG), sliding roof tilted upward, TILT DOWN switch OFF Below 1 V
      DWN (W7-4) - E (W7-7) L - W-B Sliding roof motor down Engine switch on (IG), sliding roof tilted upward, TILT DOWN switch ON 10 to 14 V

      If the result is not as specified, the ECU may have a malfunction.

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