Dtc C1622 Back Camera Disconnected

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Park Assist Monitoring. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER - REAR TELEVISION CAMERA AND BODY GROUND)

CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (CA+, CGND)

CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND)

DTC C1622 Back Camera Disconnected


DESCRIPTION

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

DTC Code
DTC Detection Condition
Trouble Area
C1622
Open or short in the rear television camera assembly signal circuit
  1. Harness or connector
  2. Rear television camera assembly
  3. Multi-media module receiver assembly

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Park Assist Monitoring.Toyota Parking Assist-Sensor System. Dtc C1622 Back Camera Disconnected


INSPECTION PROCEDURE

NOTICE:
  1. When "System initializing" is displayed on the multi-media module receiver assembly after disconnecting the cable from the negative (-) battery terminal, correct the steering angle neutral point (Click here).
  2. 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 (w/o Side Monitor System) may be needed (Click here).
1.CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER - REAR TELEVISION CAMERA AND BODY GROUND)

  1. Disconnect the F77 multi-media module receiver assembly connector.

  1. Disconnect the S5 rear television camera assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F77-18 (V+) - S5-2 (CV+)
    		Always
    		Below 1 Ω
    F77-19 (V-) - S5-1 (CV-)
    		Always
    		Below 1 Ω
    F77-39 (CA+) - S5-4 (CB+)
    		Always
    		Below 1 Ω
    F77-40 (CGND) - S5-3 (CGND)
    		Always
    		Below 1 Ω
    F77-12 (GND1) - Body ground
    		Always
    		Below 1 Ω
    F77-18 (V+) - Body ground
    		Always
    		10 kΩ or higher
    F77-19 (V-) - Body ground
    		Always
    		10 kΩ or higher
    F77-39 (CA+) - Body ground
    		Always
    		10 kΩ or higher
    F77-40 (CGND) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (CA+, CGND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Park Assist Monitoring.Toyota Parking Assist-Sensor System. Dtc C1622 Back Camera Disconnected

  1. Reconnect the multi-media module receiver assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F77-40 (CGND) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    F77-39 (CA+) - F77-40 (CGND)
    		Engine switch on (IG), shift lever in R
    		5.5 to 7.05 V
    Text in Illustration
    *a
    		Component with harness connected
    (Multi-media Module Receiver Assembly)


NG
REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)
OK


3.CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND)

  1. Reconnect the S5 rear television camera assembly connector.


Land Cruiser. Urj200, 202 Grj200 Vdj200.Park Assist Monitoring.Toyota Parking Assist-Sensor System. Dtc C1622 Back Camera Disconnected


Text in Illustration
*a
Component with harness connected
(Multi-media Module Receiver Assembly)
*b
Waveform A
*c
Waveform A
*d
Synchronization Signal
*e
Video Waveform
-
-

  1. Check the waveform of the rear television camera assembly using an oscilloscope.

    HINT:
    1. A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the multi-media module receiver assembly with the connector connected.
    2. The video waveform changes according to the image sent by the rear television camera assembly.
    Measurement Condition
    Item
    		Content
    Tester No. (Symbol)
    		F77-18 (V+) - F77-40 (CGND)
    Tool Setting
    		0.2 V/DIV., 50 μS/DIV
    Condition
    		Waveform A: Engine starts, shift lever in R (camera lens is not covered, displaying an image)
    Waveform B: Engine starts, shift lever in R (camera lens is covered, blacking out the screen)
    OK:
    Waveform is as shown in the illustration.


NG
REPLACE REAR TELEVISION CAMERA ASSEMBLY (Click here)
OK

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)