Dtc C1622 Open Or Short Circuit In Back Camera Signal

Audio Visual Telematics. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Park Assist Monitoring. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

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

CHECK NAVIGATION RECEIVER 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 rear television camera signal
  1. Harness or connector
  2. Rear television camera assembly
  3. Navigation receiver assembly

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Park Assist Monitoring.Rear View Monitor System (For Radio And Display Type). Dtc C1622 Open Or Short Circuit In Back Camera Signal


INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs (HILUX_TGN26 RM0000051N6004X.html).

  1. Check for DTCs (HILUX_TGN26 RM0000051N6004X.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 (HILUX_TGN26 RM000004QR7005X.html)

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

  1. Disconnect the G153 navigation receiver assembly connector.

  1. Disconnect the M2 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
    G153-7 (CA+) - M2-4 (CB+)
    		Always
    		Below 1 Ω
    G153-8 (V+) - M2-2 (CV+)
    		Always
    		Below 1 Ω
    G153-15 (CGND) - M2-3 (CGND)
    		Always
    		Below 1 Ω
    G153-16 (V-) - M2-1 (CV-)
    		Always
    		Below 1 Ω
    G153-7 (CA+) - Body ground
    		Always
    		10 kΩ or higher
    G153-8 (V+) - Body ground
    		Always
    		10 kΩ or higher
    G153-15 (CGND) - Body ground
    		Always
    		10 kΩ or higher
    G153-16 (V-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK NAVIGATION RECEIVER ASSEMBLY


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Park Assist Monitoring.Rear View Monitor System (For Radio And Display Type). Dtc C1622 Open Or Short Circuit In Back Camera Signal

  1. Disconnect the G153 navigation receiver assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G153-15 (CGND) - Body ground
    		Always
    		Below 1 Ω
    G153-16 (V-) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Component without harness connected
    (Navigation Receiver Assembly)


NG
REPLACE NAVIGATION RECEIVER ASSEMBLY (HILUX_TGN26 RM000003O1L006X.html)
OK


4.CHECK NAVIGATION RECEIVER ASSEMBLY


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Park Assist Monitoring.Rear View Monitor System (For Radio And Display Type). Dtc C1622 Open Or Short Circuit In Back Camera Signal

  1. Disconnect the M2 rear television camera assembly connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    M2-4 (CB+) - M4-3 (CGND)
    		Ignition switch ON, shift lever in R
    		5.5 to 7.05 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Rear Television Camera Assembly)


NG
REPLACE NAVIGATION RECEIVER ASSEMBLY (HILUX_TGN26 RM000003O1L006X.html)
OK


5.CHECK REAR TELEVISION CAMERA ASSEMBLY


  1. Using an oscilloscope, check the waveform.


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Park Assist Monitoring.Rear View Monitor System (For Radio And Display Type). 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
    		G153-8(V+) - G153-16 (V-)
    Tool Setting
    		0.2 V/DIV., 50 μs/DIV.
    Condition
    1. Waveform 1: Ignition switch ON, shift lever in R
    2. Waveform 2: Ignition switch ON, shift lever in R, screen blacked out by covering camera lens
    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 6
OK

USE SIMULATION METHOD TO CHECK (HILUX_TGN26 RM000004QR7005X.html)

6.REPLACE REAR TELEVISION CAMERA ASSEMBLY

  1. Replace the rear television camera assembly with a new or normally functioning one (HILUX_TGN26 RM00000139200NX.html).


NEXT


7.CHECK FOR DTC

  1. Clear the DTCs (HILUX_TGN26 RM0000051N6004X.html).

  1. Check for DTCs (HILUX_TGN26 RM0000051N6004X.html).

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


NG
REPLACE NAVIGATION RECEIVER ASSEMBLY (HILUX_TGN26 RM000003O1L006X.html)
OK

END (REAR TELEVISION CAMERA ASSEMBLY WAS DEFECTIVE)