Dtc C1621 Back Camera Power Supply Failure


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT

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

CHECK NAVIGATION RECEIVER ASSEMBLY (CA+, CGND)

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

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

DTC C1621 Back Camera Power Supply Failure


DESCRIPTION

This DTC is stored if the rear television camera assembly judges as a result of its self check that the signals or signal lines between the rear television camera assembly and navigation receiver assembly*1 or radio and display receiver assembly*2 are not normal.

DTC Code
DTC Detection Condition
Trouble Area
C1621
Rear television camera assembly power supply failure
  1. Harness or connector
  2. Rear television camera assembly
  3. Navigation receiver assembly*1
  4. Radio and display receiver assembly*2
  1. *1: for Navigation Receiver Type
  2. *2: for Radio and Display Type

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 C1621 Back Camera Power Supply Failure


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 C1621 Back Camera Power Supply Failure


INSPECTION PROCEDURE

NOTICE:
  1. If the cable was disconnected from and reconnected to the negative (-) battery terminal, the estimated course lines may not be displayed on the image of the area behind the vehicle. In this case, perform "Correct the Steering Angle Neutral Point" (LandCruiser RM0000035DE05YX.html).
  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 may be needed (LandCruiser RM0000035DD06QX.html).
1.CHECK DTC OUTPUT

  1. Clear the DTCs (LandCruiser RM0000035DB07IX.html).

  1. Check for DTCs (LandCruiser RM0000035DB07IX.html).

    Result
    Result
    		Proceed to
    No DTC is output
    		A
    DTC is output (for Navigation Receiver Type)
    		B
    DTC is output (for Radio and Display Type)
    		C


B
Go to step 2

C
Go to step 4
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 v3*1 or X10*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+) - v3-6 (CB+)
    		Always
    		Below 1 Ω
    H55-23 (CGND) - v3-5 (CGND)
    		Always
    		Below 1 Ω
    H55-11 (CA+) - H55-23 (CGND)
    		Always
    		10 kΩ or higher
    H55-11 (CA+) or v3-6 (CB+) - Body ground
    		Always
    		10 kΩ or higher
    H55-23 (CGND) or v3-5 (CGND) - Body ground
    		Always
    		Below 1 Ω
    w/o Tire Carrier:
    Tester Connection
    		Condition
    		Specified Condition
    H55-11 (CA+) - X10-6 (CB+)
    		Always
    		Below 1 Ω
    H55-23 (CGND) - X10-5 (CGND)
    		Always
    		Below 1 Ω
    H55-11 (CA+) - H55-23 (CGND)
    		Always
    		10 kΩ or higher
    H55-11 (CA+) or X10-6 (CB+) - Body ground
    		Always
    		10 kΩ or higher
    H55-23 (CGND) or X10-5 (CGND) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK NAVIGATION RECEIVER ASSEMBLY (CA+, CGND)


    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 C1621 Back Camera Power Supply Failure

  1. Remove the navigation receiver assembly with the connector still connected (LandCruiser RM000003B6H02GX.html).

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    H55-11 (CA+) - H55-23 (CGND)
    		Engine switch on (ACC)
    		5.5 to 7.05 V
Text in Illustration
*a
Component with harness connected
(Navigation Receiver Assembly)
Result
Result
Proceed to
OK
A
NG (w/ Tire Carrier)
B
NG (w/o Tire Carrier)
C


B
REPLACE REAR TELEVISION CAMERA ASSEMBLY (LandCruiser RM00000470R008X.html)

C
REPLACE REAR TELEVISION CAMERA ASSEMBLY (LandCruiser RM00000470U00MX.html)
A

REPLACE NAVIGATION RECEIVER ASSEMBLY (LandCruiser RM000003B6H02GX.html)

4.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)

  1. Disconnect the H50 radio and display receiver assembly connector.

  1. Disconnect the v3*1 or X10*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
    H50-11 (CA+) - v3-6 (CB+)
    		Always
    		Below 1 Ω
    H50-23 (CGND) - v3-5 (CGND)
    		Always
    		Below 1 Ω
    H50-11 (CA+) - H50-23 (CGND)
    		Always
    		10 kΩ or higher
    H50-11 (CA+) or v3-6 (CB+) - Body ground
    		Always
    		10 kΩ or higher
    H50-23 (CGND) or v3-5 (CGND) - Body ground
    		Always
    		Below 1 Ω
    w/o Tire Carrier:
    Tester Connection
    		Condition
    		Specified Condition
    H50-11 (CA+) - X10-6 (CB+)
    		Always
    		Below 1 Ω
    H50-23 (CGND) - X10-5 (CGND)
    		Always
    		Below 1 Ω
    H50-11 (CA+) - H50-23 (CGND)
    		Always
    		10 kΩ or higher
    H50-11 (CA+) or X10-6 (CB+) - Body ground
    		Always
    		10 kΩ or higher
    H50-23 (CGND) or X10-5 (CGND) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK RADIO AND DISPLAY 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 C1621 Back Camera Power Supply Failure

  1. Remove the radio and display receiver assembly with the connector still connected (LandCruiser RM000003AHY02NX.html).

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    H50-11 (CA+) - H50-23 (CGND)
    		Engine switch on (ACC)
    		5.5 to 7.05 V
Text in Illustration
*a
Component with harness connected
(Radio and Display Receiver Assembly)
Result
Result
Proceed to
OK
A
NG (w/ Tire Carrier)
B
NG (w/o Tire Carrier)
C


B
REPLACE REAR TELEVISION CAMERA ASSEMBLY (LandCruiser RM00000470R008X.html)

C
REPLACE REAR TELEVISION CAMERA ASSEMBLY (LandCruiser RM00000470U00MX.html)
A

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (LandCruiser RM000003AHY02NX.html)