PARKING ASSIST MONITOR SYSTEM, Diagnostic DTC:C1621, C1622

DTC Code DTC Name
C1621 Back Camera Power Supply Failure
C1622 Open or Short Circuit in Back Camera Signal

DESCRIPTION

These DTCs are stored if the multi-media module receiver assembly judges that the signals or lines between the multi-media module receiver assembly and the rear television camera assembly are not normal as a result of its self check.

DTC Code DTC Detection Condition Trouble Area
C1621 Rear television camera power supply failure
  • Harness or connector

  • Rear television camera assembly

  • Multi-media nodule receiver assembly

C1622 Open or short in the rear television camera signal circuit

WIRING DIAGRAM

A01FFBRE01

INSPECTION PROCEDURE

Note


  • When "System initializing" is displayed on the multi-display after disconnecting the cable from the negative (-) battery terminal, correct the steering angle neutral point Click here.

  • Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed Click here.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY AND BODY GROUND)


    1. Disconnect the N68 multi-media module receiver assembly connector.

    2. Disconnect the a5 rear television camera assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      N68-19 (V-) - a5-2 (CV-) Always Below 1 Ω
      N68-18 (V+) - a5-3 (CV+) Always Below 1 Ω
      N68-40 (CGND) - a5-5 (CGND) Always Below 1 Ω
      N68-39 (CA+) - a5-6 (CB+) Always Below 1 Ω
      N68-12 (GND1) - Body ground Always Below 1 Ω
      a5-1 (CURT) - Body ground Always Below 1 Ω
      N68-19 (V-) - Body ground Always 10 kΩ or higher
      N68-18 (V+) - Body ground Always 10 kΩ or higher
      N68-40 (CGND) - Body ground Always 10 kΩ or higher
      N68-39 (CA+) - Body ground Always 10 kΩ or higher

    NG
    OK
  2. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (CA+, CGND)


    1. A01FHV0E01
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      Reconnect the multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N68-40 (CGND) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      N68-39 (CA+) - N68-40 (CGND) Engine starts, shift lever in R 5.5 to 7.05 V

    NG
    OK
  3. CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND)


    1. Reconnect the a5 rear television camera assembly connector.

      A01FHMZE01
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      *b Waveform A
      *c Waveform A *d Synchronization Signal
      *e Video Waveform - -
    2. Check the waveform of the rear television camera assembly using an oscilloscope.

      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) N68-18 (V+) - N68-40 (CGND)
      Tool Setting 0.2 V/DIV., 50 μs/DIV.
      Condition

      Waveform A: Engine starts, shift lever in R (camera lens is not covered, displaying an image)

      Waveform B: Engine starts, 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.

      OK
      Waveform is as shown in the illustration.

    NG
    OK