Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026ZF3
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: PARK ASSIST / MONITORING: REAR VIEW MONITOR SYSTEM (for Single Knob Radio and Display Receiver): Image from Camera for Rear View Monitor is Abnormal; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]

Image from Camera for Rear View Monitor is Abnormal

DESCRIPTION

The video signal of the rear television camera assembly is transmitted to the radio and display receiver assembly.

WIRING DIAGRAM

PROCEDURE

1.

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

(a) Disconnect the I175 radio and display receiver assembly connector.

(b) Disconnect the V22*1 or O115*2 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

I175-30 (CA+) - V22*1 or O115*2-6 (CB+)

Always

Below 1 Ω

I175-28 (V+) - V22*1 or O115*2-3 (CV+)

Always

Below 1 Ω

I175-29 (V-) - V22*1 or O115*2-2 (CV-)

Always

Below 1 Ω

I175-27 (CGND) - V22*1 or O115*2-5 (CGND)

Always

Below 1 Ω

I175-26 (CSLD) - Body ground

Always

Below 1 Ω

I175-30 (CA+) or V22*1 or O115*2-6 (CB+) - Body ground

Always

10 kΩ or higher

I175-28 (V+) or V22*1 or O115*2-3 (CV+) - Body ground

Always

10 kΩ or higher

I175-29 (V-) or V22*1 or O115*2-2 (CV-) - Body ground

Always

10 kΩ or higher

I175-27 (CGND) or V22*1 or O115*2-5 (CGND) - Body ground

Always

10 kΩ or higher

  • *1: for Hatchback Model
  • *2: for Sedan Model
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Reconnect the I175 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

I175-29 (V-) - Body ground

Always

Below 1 Ω

I175-27 (CGND) - Body ground

Always

Below 1 Ω

*a

Component with harness connected

(Radio and Display Receiver Assembly)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

I175-30 (CA+) - I175-27 (CGND)

Ignition switch ACC

5.5 to 7.05 V

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

OK

3.

INSPECT REAR TELEVISION CAMERA ASSEMBLY

(a) Reconnect the V22*1 or O115*2 rear television camera assembly connector.

  • *1: for Hatchback Model
  • *2: for Sedan Model

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

I175-28 (V+) - I175-29 (V-)

Measurement setting

200 mV/DIV., 50 μs./DIV.

Condition

Ignition switch ON, reverse (R) selected

*a

Component with harness connected

(Radio and Display Receiver Assembly)

*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

HINT:

  • The video waveform changes according to the image sent by the rear television camera assembly.
  • The video waveform is constantly output when the ignition switch is turned to ACC.
  • Make sure that the rear camera is enabled in general settings.
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPLACE REAR TELEVISION CAMERA ASSEMBLY

for Sedan: Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; PARK ASSIST / MONITORING: TELEVISION CAMERA (for Sedan): REMOVAL

for Hatchback: Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; PARK ASSIST / MONITORING: TELEVISION CAMERA: REMOVAL