| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001GL9J |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [01/2019 - 11/2022] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): Reverse Signal Circuit; 2020 - 2023 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 11/2022] | ||
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Reverse Signal Circuit |
DESCRIPTION
for M/T
- The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly.
for CVT
- The radio and display receiver assembly receives a reverse signal from the back-up light switch assembly.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK BACK-UP LIGHT |
(a) Move the shift lever to R and check if the back-up lights come on.
OK:
The back-up lights come on.
| NG |
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GO TO LIGHTING SYSTEM w/ AFS: Click here
w/o AFS: Click here
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![2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with AFS): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
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2. |
CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL) |
(a) Disconnect the I55 radio and display receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I55-28 (REV) - Body ground |
Ignition switch ON Shift lever in R |
11 to 14 V |
|
I55-28 (REV) - Body ground |
Ignition switch ON Shift lever not in R |
Below 1 V |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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