PARKING ASSIST MONITOR SYSTEM TERMINALS OF ECU


  1. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    A000R6JE02

    1. Disconnect the N164 multi-media module receiver assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N164-12 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      N164-15 (IG) - N164-12 (GND1) L - W-B Power source (IG) Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      N164-16 (ACC1) - N164-12 (GND1) GR - W-B Power source (ACC) Power switch on (ACC) 11 to 14 V
      Power switch off Below 1 V
      N164-17 (+B1) - N164-12 (GND1) L - W-B Power source Power switch off 11 to 14 V

    3. Reconnect the N164 multi-media module receiver assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N164-39 (CA+) - Body ground B - Body ground Power source Power switch on (ACC) 5.5 to 7.05 V
      N164-18 (V+) - N164-19 (V-) R - W Display signal Power switch on (READY), shift lever in R, camera lens is not covered, displaying an image Pulse generation (See waveform 1)
      Power switch on (READY), shift lever in R, camera lens is covered, blacking out the screen Pulse generation (See waveform 2)
      N164-40 (CGND) - Body ground Shielded - Body ground Shielding Always Below 1 V
      N164-1 (CANH) B CAN communication line - -
      N164-2 (CANL) W CAN communication line - -
      N170-1 (GVIF) B Video signal (Digital) - -
    5. A000S4RE19
      Text in Illustration
      *a Waveform 1
      *b Waveform 2
      *c Synchronization Signal
      *d Video Waveform

      Using an oscilloscope, check waveform.

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the multi-media module receiver assembly with the connector connected.

      Item Content
      Terminal No. (Symbol) N164-18 (V+) - N164-19 (V-)
      Tool Setting 200 mV/DIV., 50 μsec./ DIV.
      Condition

      Waveform 1: Power switch on (READY), shift lever in R, camera lens is not covered, displaying an image

      Waveform 2: Power switch on (READY), shift lever in R, camera lens is covered, blacking out the screen

      Tech Tips

      The video waveform changes according to the image sent by the rear television camera assembly.