PARKING ASSIST MONITOR SYSTEM TERMINALS OF ECU


  1. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    A01GW32E35

    1. Measure the voltage, resistance and check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L164-1 (CANH) R CAN communication line - -
      L164-2 (CANH) G CAN communication line - -
      L164-12 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L164-17 (+B1) - L164-12 (GND1) R - W-B Power source (+B) Always 11 to 14 V
      L164-18 (V+) - L164-40 (CGND) W - Shielded Display signal Power switch on (READY), shift lever in R Pulse generation (See waveform)
      L164-19 (V-) - L164-40 (CGND) R - Shielded Television camera assembly ground Always Below 1 V
      L164-39 (CA+) - L164-40 (CGND) B - Shielded Power source Power switch on (READY), shift lever in R 5.5 to 7.05 V
      L164-40 (CGND) - Body ground Shielded - Body ground Shielding Always Below 1 V
      L164-57 (REV) - L164-12 (GND1) R - W-B Reverse signal

      See "Vehicle Signal Check Mode" in Operation Check Click here (w/o Navigation System)

      See "Vehicle Signal Check Mode" in Operation Check Click here (w/ Navigation System)

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    2. Using an oscilloscope, check the waveform.

      A01GX3FE01
      Text in Illustration
      *a Waveform A *b Waveform B
      *c Synchronization Signal *d Video Waveform
      Item Content
      Terminal No. (Symbol) L164-18 (V+) - L164-40 (CGND)
      Tool Setting 0.2 V/DIV., 50 μs/DIV.
      Condition

      Waveform A: Power switch on (READY), shift lever in R (camera lens is not covered, displaying an image)

      Waveform B: Power switch on (READY), shift lever in R (camera lens is covered, blacking out the screen)

  2. CHECK ACCESSORY METER ASSEMBLY

    A01GW81E48

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L163-12 (+B2) - Body ground R - Body ground Power source (+B) Always 11 to 14 V
      L163-13 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L163-23 (IG) - Body ground V - Body ground Power source (IG) Power switch on (IG) 11 to 14 V
      L163-24 (ACC) - Body ground LG - Body ground Power source (ACC) Power switch on (ACC) 11 to 14 V