POWER SLIDE DOOR SYSTEM TERMINALS OF ECU


  1. CHECK DOOR CONTROL RELAY (POWER SLIDE DOOR ECU LH)

    A01BGOME01

    1. Disconnect the q3 and q4 ECU connectors.

    2. Measure the voltage and resistance of each terminal of the wire harness side connectors.

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (q3-7) - Body ground W-B - Body ground Ground Always Below 1 Ω
      B (q3-8) - GND (q3-7) B-R - W-B Power supply Always 11 to 14 V
      HAF (q4-4) - SEL (q4-21) B - W-B Half latch switch input Half latch ON range → Expect half latch ON range Below 1 Ω → 10 kΩ or higher
      FUL (q4-5) - SEL (q4-21) Y - W-B Full latch switch input Full latch ON range → Over stroke Below 1 Ω → 10 kΩ or higher
      CPSW (q4-10) - GND (q3-7) R-Y - W-B Park/Neutral position switch input Ignition switch ON and shift lever P position → Expect P position 11 to 14 V → 0 V
      MPX1 (q4-8) - GND (q3-7) Y-G - W-B Power slide door handle switch input Slide door inside/outside handle not pulled → Pulled 10 kΩ or higher → Below 1 Ω
      IG (q4-9) - GND (q3-7) B-R - W-B Ignition power supply Ignition switch ON → OFF 11 to 14 V → 0 V
      ECUB (q4-11) - GND (q3-7) W-R - W-B Power supply Always 11 to 14 V
      OSG (q4-13) - Body ground BR - Body ground Ground Always Below 1 Ω
      OS (q4-14) - OSG (q4-13) G - BR Power slide door sensor input Power slide door sensor not pressed → Pressed Approx. 1 kΩ → Below 100 Ω
      DSW (q4-16) - GND (q3-7) B-Y - W-B Auto slide door control switch input Auto slide door control switch not pushed → Pushed 10 kΩ or higher → Below 1 Ω
      MSW (q4-17) - GND (q3-7) P - W-B Main switch input Auto slide door main switch not pushed → Pushed Below 1 Ω → 10 kΩ or higher
      POL (q4-18) - SEL (q4-21) L-R - W-B Pawl switch input Pawl switch ON → OFF Below 1 Ω → 10 kΩ or higher
      LMT (q4-19) - SEL (q4-21) L-W - W-B Initial position switch input Initial position switch ON → OFF Below 1 Ω → 10 kΩ or higher
      SEL (q4-21) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DLSW (q4-22) - GND (q3-7) G-W - W-B Door unlock position switch input Slide door Lock → Unlock 10 kΩ or higher → Below 1 Ω
      SPD (q4-26) - SEL (q4-21) P-L - W-B Vehicle speed signal input

      IG ON

      Drive wheel turned slowly

      		 Pulse generation

    3. Reconnect the q3 and q4 ECU connectors.

    4. Measure the voltage of each terminal of the wire harness side connectors.

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CL- (q3-6) - GND (q3-7) Y-R - W-B Power slide door clutch (-) output

      1: Slide door fully opened and A*1switch turned ON →

      2: Slide door in closing operation →

      3: Slide door fully closed

      1: 0 V →

      2: 11 to 14 V ←→ 0 V pulse generation (Slide door in closing operation)

      3: 0 V
      DC+ (q3-5) - GND (q3-7) L - W-B Power slide door lock closer motor drive output (Close)

      1: Slide door open and A*1switch turned OFF →

      2: A*1switch turned ON →

      3: Slide door in closing operation →

      4: Not completely closed →

      5: Operation completed (slide door closed)

      1: 0 V →

      2: 0 V →

      3: 0 V →

      4: 11 to 14 V →

      5: 0 V
      SD- (q3-3) - GND (q3-7) B - W-B Power slide door motor low open speed drive output Slide door in open operation, low speed range 11 to 14 V
      SD+ (q3-4) - GND (q3-7) L - W-B Power slide door motor high open speed drive output Slide door in open operation, high speed range 11 to 14 V
      CL+ (q3-2) - GND (q3-7) Y-B - W-B Power slide door clutch (+) output

      1: Slide door fully closed and A*1switch turned ON →

      2: Slide door in opening operation →

      3: Slide door fully opened

      1: 0 V →

      2: 11 to 14 V →

      3: 0 V
      DC- (q3-1) - GND (q3-7) P - W-B Power slide door lock closer motor drive output (Release)

      1: Slide door open →

      2: Slide door inside/outside handle pulled →

      3: Slide door in closing operation →

      4: Not completely closed→

      5: Operation completed (slide door closed) →

      6: Motor in reverse rotation →

      7: Operation completed (slide door closed)

      1: 0 V →

      2: 0 V →

      3: 0 V →

      4: 0 V →

      5: 0 V →

      6: 11 to 14 V →

      7: 0 V
      RACT (q3-12) - GND (q3-7) R-B - W-B Slide door lock release motor drive output

      1: Slide door fully closed and A*1switch turned ON →

      2: Slide door lock latch release operation →

      3: Slide door in opening operation →

      4: Slide door fully open

      1: 0 V →

      2: 11 to 14 V →

      3: 0 V →

      4: 0 V
      BZR+ (q4-1) - GND (q3-7) W - W-B Power slide door warning buzzer output

      1: Slide door fully closed (A*1switch turned OFF) →

      2: A*1switch turned ON →

      3: Slide door in opening operation →

      4: Slide door fully open

      1: 0 V →

      2: 11 to 14 V (approx. 0.5 seconds) →

      3: 0 V →

      4: 0 V
      BZR+ (q4-1) - GND (q3-7) W - W-B Power slide door warning buzzer output

      1: Slide door fully closed →

      2: Slide door inside/outside handle pulled →

      3: Slide door in opening operation →

      4: Slide door fully open

      1: 0 V →

      2: 11 to 14 V (approx. 0.1 seconds) →

      3: 0 V →

      4: 0 V
      BZR+ (q4-1) - GND (q3-7) W - W-B Power slide door warning buzzer output

      1: Slide door fully open (A*1switch turned OFF) →

      2: A*1switch turned ON →

      3: Slide door in closing operation →

      4: Slide door fully closed

      1: 0 V →

      2: 11 to 14 V (approx. 0.5 seconds) →

      3: Alternating between 11 to 14 V (approx. 0.1 seconds) →

      4: 0 V
      BZR+ (q4-1) - GND (q3-7) W - W-B Power slide door warning buzzer output

      1: Slide door fully open →

      2: Slide door inside/outside handle pulled →

      3: Slide door in closing operation →

      4: Slide door fully closed

      1: 0 V →

      2: 11 to 14 V (approx. 0.3 seconds) →

      3: Alternating between 11 to 14 V (approx. 0.1 seconds) →

      4: 0 V
      DSV (q4-3) - DSG (q4-2) P - BR

      Power slide door drive unit pulse sensor power supply

      Power slide door drive unit pulse sensor ground

      		 IG ON 11 to 14 V
      DS2 (q4-23) - DSG (q4-2) B - BR

      Power slide door drive unit pulse sensor-2 signal input

      Power slide door drive unit pulse sensor ground

      1: Slide door fully closed →

      2: Slide door in opening operation →

      3: Slide door fully opened →

      4: Slide door in closing operation →

      5: Slide door fully closed

      1: 0 V →

      2: Alternating 11 to 14 V and 0 V →

      3: 11 to 14 V →

      4: Alternating 11 to 14 V and 0 V →

      5: 0 V
      DS1 (q4-24) - DSG (q4-2) LG - BR

      Power slide door drive unit pulse sensor-1 signal input

      Power slide door drive unit pulse sensor ground

      1: Slide door fully closed →

      2: Slide door in opening operation →

      3: Slide door fully opened →

      4: Slide door in closing operation →

      5: Slide door fully closed

      1: 0 V →

      2: Alternating 11 to 14 V and 0 V →

      3: 11 to 14 V →

      4: Alternating 11 to 14 V and 0 V →

      5: 0 V

      Tech Tips

      *1: Auto slide door control switch


      • Use an oscilloscope to check the output voltages of the power slide door switch, buzzer and pulse sensor.

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

  2. CHECK DOOR OPENING RELAY

    A01BAJDE02

    1. Disconnect the p8 ECU connector.

    2. Measure the voltage and resistance of each terminal of the wire harness side connector.

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (p8-2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      B (p8-6) - GND (p8-2) W - W-B Power supply Always 11 to 14 V

    3. Reconnect the p8 ECU connector.

    4. Measure the voltage of each terminal of the wire harness side connector.

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      L (p8-1) - E (p8-10) R - BR Slide door lock release motor output

      1: Slide door lock fully closed →

      2: A*1switch ON →

      3: Slide door lock releasing operation →

      4: Slide door lock fully released

      1: 0 V →

      2: 0 V →

      3: 0 V →

      4: 11 to 14 V → 0 V
      UL (p8-3) - E (p8-10) B - BR Slide door lock release motor output

      1: Slide door lock fully closed →

      2: A*1switch ON →

      3: Slide door lock releasing operation →

      4: Slide door lock fully released

      1: 0 V →

      2: 0 V →

      3: 11 to 14 V →

      4: 0 V
      CSW (p8-5) - E (p8-10) Y - BR Release position switch output Slide door fully open or closed → Slide door in opening operation or closing operation 11 to 14 V → 0 V → 11 to 14 V
      PSW (p8-12) - E (p8-10) L - BR Initial position switch output Slide door fully open or closed → Not completely open or closed 0 V → 11 to 14 V → 0 V

      Tech Tips

      *1: Auto slide door control switch


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