Dtc C1622 Open Or Short Circuit In Back Camera Signal


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

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

CHECK NAVIGATION RECEIVER ASSEMBLY

CHECK REAR TELEVISION CAMERA ASSEMBLY

REPLACE REAR TELEVISION CAMERA ASSEMBLY

CHECK FOR DTC

DTC 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 television camera signal
  1. Harness or connector
  2. Rear television camera assembly
  3. Navigation receiver assembly

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display). Dtc C1622 Open Or Short Circuit In Back Camera Signal


INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs (LandCruiser RM0000051N601IX.html).

  1. Check for DTCs (LandCruiser RM0000051N601IX.html).

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


B
Go to step 2
A

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

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

  1. Disconnect the H55 navigation receiver assembly connector.

  1. Disconnect the X9*1 or v2*2 rear television camera assembly connector.

    1. *1: w/ Tire Carrier
    2. *2: w/o Tire Carrier

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

    Standard Resistance:
    w/ Tire Carrier:
    Tester Connection
    		Condition
    		Specified Condition
    H55-11 (CA+) - X9-6 (CB+)
    		Always
    		Below 1 Ω
    H55-12 (V+) - X9-3 (CV+)
    		Always
    		Below 1 Ω
    H55-23 (CGND) - X9-5 (CGND)
    		Always
    		Below 1 Ω
    H55-24 (V-) - X9-2 (CV-)
    		Always
    		Below 1 Ω
    H55-11 (CA+) - Body ground
    		Always
    		10 kΩ or higher
    H55-12 (V+) - Body ground
    		Always
    		10 kΩ or higher
    H55-23 (CGND) - Body ground
    		Always
    		10 kΩ or higher
    H55-24 (V-) - Body ground
    		Always
    		10 kΩ or higher
    w/o Tire Carrier:
    Tester Connection
    		Condition
    		Specified Condition
    H55-11 (CA+) - v2-6 (CB+)
    		Always
    		Below 1 Ω
    H55-12 (V+) - v2-3 (CV+)
    		Always
    		Below 1 Ω
    H55-23 (CGND) - v2-5 (CGND)
    		Always
    		Below 1 Ω
    H55-24 (V-) - v2-2 (CV-)
    		Always
    		Below 1 Ω
    H55-11 (CA+) - Body ground
    		Always
    		10 kΩ or higher
    H55-12 (V+) - Body ground
    		Always
    		10 kΩ or higher
    H55-23 (CGND) - Body ground
    		Always
    		10 kΩ or higher
    H55-24 (V-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK NAVIGATION RECEIVER ASSEMBLY


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display). Dtc C1622 Open Or Short Circuit In Back Camera Signal

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H55-23 (CGND) - Body ground
    		Always
    		Below 1 Ω
    H55-24 (V-) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    H55-11 (CA+) - Body ground
    		Ignition switch ON
    		5.5 to 7.05 V
Text in Illustration
*a
Component with harness connected
(Navigation Receiver Assembly)


NG
REPLACE NAVIGATION RECEIVER ASSEMBLY (LandCruiser RM000003B6H02GX.html)
OK


4.CHECK REAR TELEVISION CAMERA ASSEMBLY


  1. Using an oscilloscope, check the waveform.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display). Dtc C1622 Open Or Short Circuit In Back Camera Signal


    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
    		H55-12 (V+) - H55-23 (CGND)
    Tool Setting
    		200 mV/DIV., 50 μs/DIV.
    Condition
    1. Waveform 1: Ignition switch ON, camera lens not covered, displaying an image
    2. Waveform 2: Ignition switch ON, camera lens covered, blacking out screen
    OK:
    Waveform is as shown in illustration.
    HINT:
    The video waveform changes according to the image sent by the rear television camera assembly.


NG
Go to step 5
OK

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

5.REPLACE REAR TELEVISION CAMERA ASSEMBLY

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

    1. w/ Tire Carrier: LandCruiser RM00000470R008X.html
    2. w/o Tire Carrier: LandCruiser RM00000470U00MX.html

NEXT


6.CHECK FOR DTC

  1. Clear the DTCs (LandCruiser RM0000051N601IX.html).

  1. Check for DTCs (LandCruiser RM0000051N601IX.html).



NG
REPLACE NAVIGATION RECEIVER ASSEMBLY (LandCruiser RM000003B6H02GX.html)
OK

END (REAR TELEVISION CAMERA ASSEMBLY WAS DEFECTIVE)