REAR VIEW MONITOR SYSTEM (for Navigation Receiver Type), Diagnostic DTC:C1622

DTC Code DTC Name
C1622 Open or Short Circuit in Back Camera Signal

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
C1622 Open or Short Circuit in rear television camera signal

  • Harness or connector

  • Rear television camera assembly

  • Navigation receiver assembly

WIRING DIAGRAM

A01DV6PE08

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      No DTC is output A
      DTC is output B

    B

    CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) Click here

    A

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the N10 navigation receiver assembly connector.

    2. Disconnect the R25 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
      N10-11 (CA+) - R25-4 (CB+) Always Below 1 Ω
      N10-12 (V+) - R25-2 (CV+) Always Below 1 Ω
      N10-23 (CGND) - R25-3 (CGND) Always Below 1 Ω
      N10-24 (V-) - R25-1 (CV-) Always Below 1 Ω
      N10-11 (CA+) - Body ground Always 10 kΩ or higher
      N10-12 (V+) - Body ground Always 10 kΩ or higher
      N10-23 (CGND) - Body ground Always 10 kΩ or higher
      N10-24 (V-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. A01DZQKE08
      Text in Illustration
      *a

      Component without harness connected

      (Navigation Receiver Assembly)

      Disconnect the N10 navigation receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N10-23 (CGND) - Body ground Always Below 1 Ω
      N10-24 (V-) - Body ground Always Below 1 Ω

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  4. CHECK NAVIGATION RECEIVER ASSEMBLY


    1. A01E2EBE26
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Rear Television Camera Assembly)

      Disconnect the R25 rear television camera assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      R25-4 (CB+) - R25-3 (CGND) Ignition switch ACC 5.5 to 7.05 V

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  5. CHECK REAR TELEVISION CAMERA ASSEMBLY


    1. Using an oscilloscope, check the waveform.

      A01E2VEE11
      Text in Illustration
      *a

      Component with harness connected

      (Navigation Receiver Assembly)

      		 *b Waveform 1
      *c Waveform 2 *d Synchronized Signal
      *e Video Waveform - -
      Measurement Condition
      Item Content
      Tester Connection N10-12 (V+) - N10-24 (V-)
      Tool Setting 0.2 V/DIV., 50 μs/DIV.
      Condition

      • Waveform 1: Ignition switch ON, shift lever in R

      • Waveform 2: Ignition switch ON, shift lever in R, screen blacked out by covering camera lens
      OK
      Waveform is as shown in illustration.

      Tech Tips

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


    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  6. REPLACE REAR TELEVISION CAMERA ASSEMBLY


    1. Replace the rear television camera assembly with a new or normally functioning one Click here.


    NEXT

  7. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      No DTC is output A
      DTC is output B

    B

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    A

    END (REAR TELEVISION CAMERA ASSEMBLY WAS DEFECTIVE)