Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001FREH
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 - 10/2022]
Title: PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): C1686; Driver Side Camera Video Sync Signal Malfunction; 2019 - 2022 MY RAV4 [11/2018 - 10/2022]

DTC

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 No.

Detection Item

DTC Detection Condition

Trouble Area

C1686

Driver Side Camera Video Sync Signal Malfunction

Side camera feedback malfunction

  • Harness or connector
  • Parking assist ECU
  • Side television camera assembly LH
  • Outer rear view mirror assembly LH

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When "!" mark is displayed on the multi-display assembly after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point.

    Click here 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): INITIALIZATION

  • 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 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): CALIBRATION

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Click here 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

Chassis > Circumference Monitoring Camera Control Module > Clear DTCs

(b) Check for DTCs.

Click here 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

Chassis > Circumference Monitoring Camera Control Module > Trouble Codes

OK:

DTC C1686 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

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

(a) Disconnect the N24 parking assist ECU connector.

(b) Disconnect the J13 outer rear view mirror assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N24-12 (LCB+) - J13-3 (LCB+)

Always

Below 1 Ω

N24-10 (LCV+) - J13-4 (LCV+)

Always

Below 1 Ω

N24-34 (LCV-) - J13-12 (LCV-)

Always

Below 1 Ω

N24-35 (LGND) - J13-11 (LGND)

Always

Below 1 Ω

N24-12 (LCB+) or J13-3 (LCB+) - Body ground

Always

10 kΩ or higher

N24-10 (LCV+) or J13-4 (LCV+) - Body ground

Always

10 kΩ or higher

N24-34 (LCV-) or J13-12 (LCV-) - Body ground

Always

10 kΩ or higher

N24-35 (LGND) or J13-11 (LGND) - Body ground

Always

10 kΩ or higher

N24-11 (SGND) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

CHECK PARKING ASSIST ECU (LCV-, LGND)

(a) Disconnect the N24 parking assist ECU connector.

*a

Component without harness connected

(Parking Assist ECU)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

35 (LGND) - Body ground

Always

Below 1 Ω

34 (LCV-) - Body ground

Always

Below 1 Ω

NG

REPLACE PARKING ASSIST ECU

OK

4.

CHECK PARKING ASSIST ECU (LCB+, LGND)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N24-35 (LGND) - Body ground

Always

Below 1 Ω

*a

Component with harness connected

(Parking Assist ECU)

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

N24-12 (LCB+) - N24-35 (LGND)

Engine switch on (IG)

5.5 to 7.05 V

N24-12 (LCB+) - N24-35 (LGND)

Engine switch off

Below 1 V

NG

REPLACE PARKING ASSIST ECU

OK

5.

CHECK SIDE TELEVISION CAMERA ASSEMBLY LH (LCV+, LGND)

(a) Using an oscilloscope, check the waveform of the side television camera assembly LH.

HINT:

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.

*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

-

-

HINT:

  • The video waveform changes according to the image sent by the side television camera assembly LH.
  • The video waveform is constantly output when the engine switch is on (ACC).

Measurement Condition

Item

Content

Tester Connection

N24-10 (LCV+) - N24-35 (LGND)

Tool Setting

200 mV/DIV., 50 μsec./DIV.

Condition

Engine switch on (IG), panoramic view monitor switch on

OK:

Waveform is similar to that shown in illustration.

OK

REPLACE PARKING ASSIST ECU

NG

6.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Disconnect the outer rear view mirror assembly LH connector.

*a

Front view of wire harness connector

(to Side Television Camera Assembly LH)

*b

Front view of wire harness connector

(to Outer Rear View Mirror Assembly LH)

(b) Disconnect the side television camera assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A-1 (SCB+) - J13-3 (LCB+)

Always

Below 1 Ω

A-3 (SCV+) - J13-4 (LCV+)

Always

Below 1 Ω

A-7 (SCV-) - J13-12 (LCV-)

Always

Below 1 Ω

A-5 (SGND) - J13-11 (LGND)

Always

Below 1 Ω

A-1 (SCB+) or J13-3 (LCB+) - Body ground

Always

10 kΩ or higher

A-3 (SCV+) or J13-4 (LCV+) - Body ground

Always

10 kΩ or higher

A-7 (SCV-) or J13-12 (LCV-) - Body ground

Always

10 kΩ or higher

A-5 (SGND) or J13-11 (LGND) - Body ground

Always

10 kΩ or higher

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

OK

7.

CHECK SIDE TELEVISION CAMERA ASSEMBLY LH

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

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; PARK ASSIST / MONITORING: TELEVISION CAMERA (for Side): REMOVAL

NEXT

8.

CHECK FOR DTC

(a) Clear the DTCs.

Click here 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

Chassis > Circumference Monitoring Camera Control Module > Clear DTCs

(b) Check for DTCs.

Click here 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

Chassis > Circumference Monitoring Camera Control Module > Trouble Codes

OK:

DTC C1686 is not output.

OK

END (SIDE TELEVISION CAMERA ASSEMBLY LH IS DEFECTIVE)

NG

REPLACE PARKING ASSIST ECU