MULTI-TERRAIN MONITOR SYSTEM, Diagnostic DTC:C1686

DTC Code DTC Name
C1686 Driver Side Camera Video Sync Signal Malfunction

DESCRIPTION

This DTC is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the driver side television camera assembly to the parking assist ECU.

DTC Code DTC Detection Condition Trouble Area
C1686 Side camera feedback malfunction

  • Harness or connector

  • Parking assist ECU

  • Side television camera assembly LH (for LHD)

  • Outer rear view mirror assembly LH (for LHD)

  • Side television camera assembly RH (for RHD)

  • Outer rear view mirror assembly RH (for RHD)

WIRING DIAGRAM


  1. for LHD

    B001DDPE03

  2. for RHD

    B001DDPE04

CAUTION / NOTICE / HINT

Note


  • When "!" mark is displayed on the navigation receiver assembly*1 or radio and display receiver assembly*2 after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point.

    Click here


    • *1: for Navigation Receiver Type

    • *2: for Radio and Display Type

  • 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 FOR DTC


    1. Clear the DTCs.

      Click here

    2. Check for DTCs.

      Click here

      OK
      DTC C1686 is not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    C

    CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY RH) Click here

    B

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY LH)


    1. Disconnect the I7 parking assist ECU connector.

    2. Disconnect the K11 outer rear view mirror assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I7-2 (DCB+) - K11-6 (SCB+) Always Below 1 Ω
      I7-5 (DCV+) - K11-2 (SCV+) Always Below 1 Ω
      I7-4 (DCV-) - K11-3 (SCV-) Always Below 1 Ω
      I7-3 (DGND) - K11-7 (SGND) Always Below 1 Ω
      I7-2 (DCB+) or K11-6 (SCB+) - Body ground Always 10 kΩ or higher
      I7-5 (DCV+) or K11-2 (SCV+) - Body ground Always 10 kΩ or higher
      I7-4 (DCV-) or K11-3 (SCV-) - Body ground Always 10 kΩ or higher
      I7-3 (DGND) or K11-7 (SGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK PARKING ASSIST ECU (DCV-, DGND)


    1. B001FMWC07
      *a

      Component without harness connected

      (Parking Assist ECU)

      Disconnect the parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (DGND) - Body ground Always Below 1 Ω
      4 (DCV-) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  4. CHECK PARKING ASSIST ECU (DCB+, DGND)


    1. B001HDVC78
      *a

      Component with harness connected

      (Parking Assist ECU)

      Disconnect the outer rear view mirror assembly LH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I7-2 (DCB+) - I7-3 (DGND) Engine switch on (ACC) 5.5 to 7.05 V
      I7-2 (DCB+) - I7-3 (DGND) Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  5. CHECK SIDE TELEVISION CAMERA ASSEMBLY LH (DCV+, DGND)


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

    2. Using an oscilloscope, check the waveform of the side television camera assembly LH.

      Tech Tips

      A waterproof connector is used for the side television camera assembly LH. Therefore, inspect the waveform at the parking assist ECU with the connector connected.

      B001IB2C41
      *a

      Component with harness connected

      (Parking Assist ECU)

      		 *b Waveform 1 (camera lens not covered, displaying an image)
      *c Waveform 2 (camera lens covered, blacking out the screen) *d Synchronization Signal
      *e Video Waveform - -

      Tech Tips

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

      Measurement Condition
      Item Content
      Tester Connection I7-5 (DCV+) - I7-3 (DGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Engine switch on (IG), panoramic view monitor switch (multi-terrain monitor switch) on
      OK
      Waveform is similar to that shown in illustration.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PARKING ASSIST ECU Click here

    NG

  6. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH


    1. B001CTEC04
      *a

      Component without harness connected

      (to Side Television Camera Assembly LH)
      *b

      Component without harness connected

      (to Outer Mirror Actuator Assembly LH)

      Disconnect the outer rear view mirror assembly LH connector.

    2. Disconnect the side television camera assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B-1 (SCB+) - K11-6 (SCB+) Always Below 1 Ω
      B-3 (SCV+) - K11-2 (SCV+) Always Below 1 Ω
      B-7 (SCV-) - K11-3 (SCV-) Always Below 1 Ω
      B-5 (SGND) - K11-7 (SGND) Always Below 1 Ω
      B-1 (SCB+) or K11-6 (SCB+) - Body ground Always 10 kΩ or higher
      B-3 (SCV+) or K11-2 (SCV+) - Body ground Always 10 kΩ or higher
      B-7 (SCV-) or K11-3 (SCV-) - Body ground Always 10 kΩ or higher
      B-5 (SGND) or K11-7 (SGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

    OK

  7. CHECK SIDE TELEVISION CAMERA ASSEMBLY LH


    1. Replace the side television camera assembly LH with a new or normally functioning one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. CHECK FOR DTC


    1. Clear the DTCs.

      Click here

    2. Check for DTCs.

      Click here

      OK
      DTC C1686 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (SIDE TELEVISION CAMERA ASSEMBLY LH IS DEFECTIVE)

    NG

    REPLACE PARKING ASSIST ECU Click here

  9. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY RH)


    1. Disconnect the I7 parking assist ECU connector.

    2. Disconnect the J11 outer rear view mirror assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I7-2 (DCB+) - J11-6 (DCB+) Always Below 1 Ω
      I7-5 (DCV+) - J11-2 (DCV+) Always Below 1 Ω
      I7-4 (DCV-) - J11-3 (DCV-) Always Below 1 Ω
      I7-3 (DGND) - J11-7 (DGND) Always Below 1 Ω
      I7-2 (DCB+) or J11-6 (DCB+) - Body ground Always 10 kΩ or higher
      I7-5 (DCV+) or J11-2 (DCV+) - Body ground Always 10 kΩ or higher
      I7-4 (RCV-) or J11-3 (DCV-) - Body ground Always 10 kΩ or higher
      I7-3 (DGND) or J11-7 (DGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK PARKING ASSIST ECU (DCV-, DGND)


    1. B001FMWC07
      *a

      Component without harness connected

      (Parking Assist ECU)

      Disconnect the parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (DGND) - Body ground Always Below 1 Ω
      4 (DCV-) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  11. CHECK PARKING ASSIST ECU (DCB+, DGND)


    1. B001HDVC78
      *a

      Component with harness connected

      (Parking Assist ECU)

      Disconnect the outer rear view mirror assembly RH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I7-2 (DCB+) - I7-3 (DGND) Engine switch on (ACC) 5.5 to 7.05 V
      I7-2 (DCB+) - I7-3 (DGND) Engine switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  12. CHECK SIDE TELEVISION CAMERA ASSEMBLY RH (DCV+, DGND)


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

    2. Using an oscilloscope, check the waveform of the side television camera assembly RH.

      Tech Tips

      A waterproof connector is used for the side television camera assembly RH. Therefore, inspect the waveform at the parking assist ECU with the connector connected.

      B001IB2C41
      *a

      Component with harness connected

      (Parking Assist ECU)

      		 *b Waveform 1 (camera lens not covered, displaying an image)
      *c Waveform 2 (camera lens covered, blacking out the screen) *d Synchronization Signal
      *e Video Waveform - -

      Tech Tips

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

      Measurement Condition
      Item Content
      Tester Connection I7-5 (DCV+) - I7-3 (DGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Engine switch on (IG), panoramic view monitor switch (multi-terrain monitor switch) on
      OK
      Waveform is similar to that shown in illustration.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PARKING ASSIST ECU Click here

    NG

  13. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH


    1. B001CTEC03
      *a

      Component without harness connected

      (to Side Television Camera Assembly RH)
      *b

      Component without harness connected

      (to Outer Mirror Actuator Assembly RH)

      Disconnect the outer rear view mirror assembly RH connector.

    2. Disconnect the side television camera assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-1 (SCB+) - J11-6 (DCB+) Always Below 1 Ω
      A-3 (SCV+) - J11-2 (DCV+) Always Below 1 Ω
      A-7 (SCV-) - J11-3 (DCV-) Always Below 1 Ω
      A-5 (SGND) - J11-7 (DGND) Always Below 1 Ω
      A-1 (SCB+) or J11-6 (DCB+) - Body ground Always 10 kΩ or higher
      A-3 (SCV+) or J11-2 (DCV+) - Body ground Always 10 kΩ or higher
      A-7 (SCV-) or J11-3 (DCV-) - Body ground Always 10 kΩ or higher
      A-5 (SGND) or J11-7 (DGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    OK

  14. REPLACE SIDE TELEVISION CAMERA ASSEMBLY RH


    1. Replace the side television camera assembly RH with a new or normally functioning one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  15. CHECK FOR DTC


    1. Clear the DTCs.

      Click here

    2. Check for DTCs.

      Click here

      OK
      DTC C1686 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (SIDE TELEVISION CAMERA ASSEMBLY RH IS DEFECTIVE)

    NG

    REPLACE PARKING ASSIST ECU Click here