PARKING ASSIST MONITOR SYSTEM, Diagnostic DTC:C1622

DTC Code DTC Name
C1622 Back Camera Disconnected

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
C1622 Open or Short Circuit in Back Camera Signal Open or short in the rear television camera assembly signal circuit

  • Harness or connector

  • Rear television camera assembly

  • Radio receiver assembly

WIRING DIAGRAM

B002ECTE25

CAUTION / NOTICE / HINT

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 (REAR TELEVISION CAMERA ASSEMBLY - RADIO RECEIVER ASSEMBLY)


    1. Disconnect the K57*1 or r1*2 radio receiver assembly connector.


      • *1: w/o Canister Pump Module

      • *2: w/ Canister Pump Module

    2. Disconnect the X5 rear television camera assembly connector.

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

      Standard Resistance
      w/o Canister Pump Module
      Tester Connection Condition Specified Condition
      K57-39 (CA+) - X5-6 (CB+) Always Below 1 Ω
      K57-18 (V+) - X5-3 (CV+) Always Below 1 Ω
      K57-19 (V-) - X5-2 (CV-) Always Below 1 Ω
      K57-40 (CGND) - X5-5 (CGND) Always Below 1 Ω
      K57-39 (CA+) - Body ground Always 10 kΩ or higher
      K57-18 (V+) - Body ground Always 10 kΩ or higher
      K57-19 (V-) - Body ground Always 10 kΩ or higher
      K57-40 (CGND) - Body ground Always 10 kΩ or higher
      w/ Canister Pump Module
      Tester Connection Condition Specified Condition
      r1-39 (CA+) - X5-6 (CB+) Always Below 1 Ω
      r1-18 (V+) - X5-3 (CV+) Always Below 1 Ω
      r1-19 (V-) - X5-2 (CV-) Always Below 1 Ω
      r1-40 (CGND) - X5-5 (CGND) Always Below 1 Ω
      r1-39 (CA+) - Body ground Always 10 kΩ or higher
      r1-18 (V+) - Body ground Always 10 kΩ or higher
      r1-19 (V-) - Body ground Always 10 kΩ or higher
      r1-40 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT RADIO RECEIVER ASSEMBLY (CA+, CGND)


    1. Reconnect the K57*1 or r1*2 radio receiver assembly connector.


      • *1: w/o Canister Pump Module

      • *2: w/ Canister Pump Module

    2. B002CLDC55
      *A w/o Canister Pump Module
      *B w/ Canister Pump Module
      *a

      Component with harness connected

      (Radio Receiver Assembly)

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

      Standard Resistance
      w/o Canister Pump Module
      Tester Connection Condition Specified Condition
      K57-40 (CGND) - Body ground Always Below 1 Ω
      w/ Canister Pump Module
      Tester Connection Condition Specified Condition
      r1-40 (CGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      w/o Canister Pump Module
      Tester Connection Switch Condition Specified Condition
      K57-39 (CA+) - K57-40 (CGND) Engine switch on (ACC) 5.5 to 7.05 V
      w/ Canister Pump Module
      Tester Connection Switch Condition Specified Condition
      r1-39 (CA+) - r1-40 (CGND) Engine switch on (ACC) 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  3. INSPECT RADIO RECEIVER ASSEMBLY (V+, GND1)


    1. Reconnect the X5 rear television camera assembly connector.

    2. B002CLDC56
      *A w/o Canister Pump Module
      *B w/ Canister Pump Module
      *a

      Component with harness connected

      (Radio Receiver Assembly)
      B002E7PC05
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

      Using an oscilloscope, check the waveform of the rear television camera assembly.

      Tech Tips

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

      OK
      Waveform is similar to that shown in the illustration.
      Item Content
      Measurement terminal

      K57-18 (V+) - K57-40 (CGND)*1

      r1-18 (V+) - r1-40 (CGND)*2
      Measurement setting 200 mV/DIV., 50 μs./DIV.
      Condition Engine switch on (IG), shift lever in R

      • *1: w/o Canister Pump Module

      • *2: w/ Canister Pump Module

      Tech Tips

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

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here