Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Rear Television Camera Communication Stop Mode

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Power Source, Network / Networking / Can Communication System(for Gasoline Model) / Rear Television Camera Communication Stop Mode

DESCRIPTION

Detection Item

Symptom

Trouble Area

Rear Television Camera Communication Stop Mode

Any of the following conditions are met:

  • Communication stop for "Parking Assist Monitor System / Rear Camera" is indicated on the "Communication Bus Check" screen of the Techstream.

    Click here

  • Communication stop history for "Parking Assist Monitor System / Rear Camera" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Parking Assist Monitor System / Rear Camera" is 6 or more.)

    Click here

  • Communication system DTCs (DTCs that start with U) that correspond to "Rear Television Camera Communication Stop Mode" in "DTC Combination Table" are output.

    Click here

  • Television camera assembly branch line or connector
  • Power source circuit of Television camera assembly
  • Television camera assembly ground circuit
  • Television camera assembly

WIRING DIAGRAM

w/ Panoramic View Monitor System: w/o Panoramic View Monitor System:

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

NOTICE:

  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Click here

  • Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
  • After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here

  • After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

    DTC check procedure: Turn the engine switch on (IG) and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

  • After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

    Click here

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

HINT:

  • Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
  • When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.

PROCEDURE

1.

CHECK VEHICLE TYPE

(a) Check vehicle type.

Result

Proceed to

w/ Panoramic View Monitor System

A

w/o Panoramic View Monitor System

B
B

GO TO STEP 4

A

2.

CHECK FOR OPEN IN CAN BUS LINES (TELEVISION CAMERA ASSEMBLY BRANCH LINE)

(a) Disconnect the cable from the negative (-) battery terminal.

(b) Disconnect the P7 television camera assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P7-4 (CANH) - P7-1 (CANL)

Cable disconnected from negative (-) battery terminal

54 to 69 Ω

*a

Front view of wire harness connector

(to Television Camera Assembly)
NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TELEVISION CAMERA ASSEMBLY)
OK

3.

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P7-5 (CGND) - Body ground

Cable disconnected from negative (-) battery terminal

Below 1 Ω

*a

Front view of wire harness connector

(to Television Camera Assembly)

(b) Reconnect the cable to the negative (-) battery terminal.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

P7-6 (CB+) - Body ground

Engine switch on (ACC)

11 to 14 V
OK

REPLACE TELEVISION CAMERA ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

4.

CHECK FOR OPEN IN CAN BUS LINES (TELEVISION CAMERA ASSEMBLY BRANCH LINE)

(a) Disconnect the cable from the negative (-) battery terminal.

(b) Disconnect the P19 television camera assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P19-4 (CANH) - P19-1 (CANL)

Cable disconnected from negative (-) battery terminal

54 to 69 Ω

*a

Front view of wire harness connector

(to Television Camera Assembly)
NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TELEVISION CAMERA ASSEMBLY)
OK

5.

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P19-5 (CGND) - Body ground

Cable disconnected from negative (-) battery terminal

Below 1 Ω

*a

Front view of wire harness connector

(to Television Camera Assembly)

(b) Reconnect the cable to the negative (-) battery terminal.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

P19-6 (CB+) - Body ground

Engine switch on (ACC)

5.5 to 7.05 V
OK

REPLACE TELEVISION CAMERA ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
    Radio Receiver Assembly Communication Stop Mode

    Restraints Occupant Classification System Module Communication Stop Mode

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Luggage Compartment Door Opener System(for Hv Model): How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the luggage compartment door opener system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT: In troubleshooting, confirm that the problem symptoms have been accurately ide ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

    © 2024 Copyright www.tavalon.net
    0.042