MULTI-TERRAIN MONITOR SYSTEM, Diagnostic DTC:C1621

DTC Code DTC Name
C1621 Back Camera Power Supply Failure

DESCRIPTION

These DTCs are 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 Code DTC Detection Condition Trouble Area
C1621 An open or short in the rear television camera signal circuit

  • Harness or connector

  • Rear television camera assembly

  • Parking assist ECU

WIRING DIAGRAM

B0019VSE23
*a Rear Television Camera Assembly
*b Parking Assist ECU

CAUTION / NOTICE / HINT

Note


  • When "!" mark is displayed on the multi-display after the battery terminal disconnected, 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 multi-terrain monitor system may be needed Click here.

PROCEDURE


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


    1. Disconnect the F75 parking assist ECU connector.

    2. Disconnect the S28 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
      F75-14 (CB+ - S28-6 (CB+) Always Below 1 Ω
      F75-37 (CGND) - S28-5 (CGND) Always Below 1 Ω
      F75-14 (CB+ or S28-6 (CB+) - Body ground Always 10 kΩ or higher
      F75-37 (CGND) or S28-5 (CGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. B001B0LE02
      Text in Illustration
      *a

      Component with harness connected

      (Parking Assist ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F75-37 (CGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F75-14 (CB+) - F75-37 (CGND) Engine switch on (IG) 5.5 to 7.05 V

    OK

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    NG

    REPLACE PARKING ASSIST ECU Click here