| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001D0B7 |
| Model Year Start: 2019 | Model: GR Corolla | Prod Date Range: [06/2018 - 11/2022] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU; 2019 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 11/2022] | ||
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Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU |
DESCRIPTION
This circuit includes the navigation ECU and radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the I57 radio and display receiver assembly connector.
(b) Disconnect the I69 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I57-28 (REV2) - I69-19 (REV2) |
Always |
Below 1 Ω |
|
I57-28 (REV2) or I69-19 (REV2) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
![2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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