PANORAMIC VIEW 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

DTC C1621 is stored if the parking assist ECU determines that the input/output signal communication with the rear television camera assembly is abnormal.

DTC C1622 is stored if the parking assist ECU judges as a result of its self check that the signals or signal lines between the parking assist ECU and the rear television camera assembly are not normal.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1621 Back Camera Power Supply Failure Rear television camera assembly power supply malfunction

  • Harness or connector

  • Rear television camera assembly

  • Parking assist ECU
C1622 Open or Short Circuit in Back Camera Signal Open or short in the rear television camera signal circuit

  • Harness or connector

  • Rear television camera assembly

  • Parking assist ECU

WIRING DIAGRAM

B006QJLE13
*a Rear Television Camera Assembly
*b Parking Assist ECU

CAUTION / NOTICE / HINT

Note


  • When "System initializing" is displayed on the parking assist ECU after the cable is disconnected 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 panoramic view monitor system may be needed.

    Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the F8 and F9 parking assist ECU connectors.

    2. Disconnect the m1 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
      F8-14 (CB+) - m1-6 (CB+) Always Below 1 Ω
      F8-12 (CV+) - m1-3 (CV+) Always Below 1 Ω
      F8-11 (CV-) - m1-2 (CV-) Always Below 1 Ω
      F8-13 (CGND) - m1-5 (CGND) Always Below 1 Ω
      F9-3 (GND1) - Body ground Always Below 1 Ω
      F8-14 (CB+) or m1-6 (CB+) - Body ground Always 10 kΩ or higher
      F8-12 (CV+) or m1-3 (CV+) - Body ground Always 10 kΩ or higher
      F8-11 (CV-) or m1-2 (CV-) - Body ground Always 10 kΩ or higher
      F8-13 (CGND) or m1-5 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK PARKING ASSIST ECU (CB+, CGND)


    1. B006Q62C21
      *a

      Component with harness connected

      (Parking Assist ECU)

      Remove the parking assist ECU with the connector still connected.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F8-13 (CGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F8-14 (CB+) - F8-13 (CGND) Engine switch on (ACC) 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  3. CHECK REAR TELEVISION CAMERA ASSEMBLY


    1. Remove the parking assist ECU with the connector still connected.

      B006OOEC20
      *a

      Component with harness connected

      (Parking Assist ECU)

      		 *b Waveform 1
      *c Waveform 2 *d Synchronization Signal
      *e Video Waveform - -

    2. Check the waveform of the rear television camera assembly using an oscilloscope.

      Tech Tips

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

      Measurement Condition
      Item Content
      Terminal No. (Symbol) F8-12 (CV+) - F8-13 (CGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition

      • Waveform 1: Engine switch on (IG), steering pad switch assembly (panoramic view monitor main switch) on, camera lens not covered, displaying image

      • Waveform 2: Engine switch on (IG), steering pad switch assembly (panoramic view monitor main switch) on, camera lens covered, blacking out screen
      OK
      Waveform is as shown in the illustration.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PARKING ASSIST ECU Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here