Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000012TE3
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 -           ]
Title: PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: C1622; Back Camera Disconnected; 2018 - 2024 MY Camry [03/2017 -        ]

DTC

C1622

Back Camera Disconnected

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1622

Back Camera Disconnected

Open or short in the rear television camera assembly signal circuit

  • Harness or connector
  • Rear television camera assembly
  • Radio and display receiver assembly

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • 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.

    Click here 2018 MY Camry [03/2017 - 06/2017]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: CALIBRATION 2018 - 2020 MY Camry [06/2017 - 10/2020]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: CALIBRATION 2021 - 2024 MY Camry [10/2020 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: CALIBRATION

PROCEDURE

1.

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

(a) Disconnect the K2 radio and display receiver assembly connector.

(b) Disconnect the m1 rear television camera assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K2-28 (V+) - m1-3 (CV+)

Always

Below 1 Ω

K2-29 (V-) - m1-2 (CV-)

Always

Below 1 Ω

K2-27 (CGND) - m1-5 (CGND)

Always

Below 1 Ω

K2-28 (V+) or m1-3 (CV+) - Body ground

Always

10 kΩ or higher

K2-29 (V-) or m1-2 (CV-) - Body ground

Always

10 kΩ or higher

K2-27 (CGND) or m1-5 (CGND) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

CHECK HARNESS AND CONNECTOR (ACC POWER SUPPLY - GROUND)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

m1-6 (CB+) - Body ground

Engine switch on (ACC)

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (V-, CGND)

(a) Reconnect the K2 radio and display receiver assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K2-29 (V-) - Body ground

Always

Below 1 Ω

K2-27 (CGND) - Body ground

Always

Below 1 Ω

*a

Component with harness connected

(Radio and Display Receiver Assembly)

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 2018 MY Camry [03/2017 - 06/2017]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL 2018 - 2020 MY Camry [06/2017 - 10/2020]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

OK

4.

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (V+, GND1)

(a) Reconnect the m1 rear television camera assembly connector.

(b) Using an oscilloscope, check the waveform of the rear television camera assembly.

*a

Component with harness connected

(Radio and Display Receiver Assembly)

HINT:

A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.

OK:

Waveform is similar to that shown in the illustration.

Item

Content

Measurement terminal

K2-28 (V+) - K3-1 (GND1)

Measurement setting

200 mV/DIV., 50 μs./DIV.

Condition

Engine switch on (IG), shift lever in R

HINT:

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

*a

Waveform 1 (camera lens is not covered, displaying an image)

*b

Waveform 2 (camera lens is covered, blacking out the screen)

*c

Synchronization Signal

*d

Video Waveform

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 2018 MY Camry [03/2017 - 06/2017]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL 2018 - 2020 MY Camry [06/2017 - 10/2020]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

NG

REPLACE REAR TELEVISION CAMERA ASSEMBLY 2018 MY Camry [03/2017 - 06/2017]; PARK ASSIST / MONITORING: TELEVISION CAMERA (for Rear): REMOVAL 2018 - 2020 MY Camry [06/2017 - 10/2020]; PARK ASSIST / MONITORING: TELEVISION CAMERA (for Rear): REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; PARK ASSIST / MONITORING: TELEVISION CAMERA (for Rear): REMOVAL