| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000002579U |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - ] |
| Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for 12.3 Inch Display): Steering Pad Switch Circuit; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] | ||
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Steering Pad Switch Circuit |
DESCRIPTION
The combination meter assembly and steering pad switch assembly are connected via direct line. The multi-information display in the combination meter assembly is operated using the switches of the steering pad switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
-
When replacing the combination meter assembly, update the ECU security key.
Click here
![2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: UPDATE ECU SECURITY KEY](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
INSPECT STEERING PAD SWITCH ASSEMBLY |
Click here
| NG |
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|
|
2. |
INSPECT SPIRAL CABLE SUB-ASSEMBLY |
Click here
| NG |
|
REPLACE SPIRAL CABLE SUB-ASSEMBLY
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|
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3. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY) |
(a) Disconnect the I5 combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I82-11 (+DP) - I5-29 (MSM+) |
Always |
Below 1 Ω |
|
I82-10 (+DP2) - I5-12 (MSTI) |
Always |
Below 1 Ω |
|
I82-11 (+DP) or I5-29 (MSM+) - Body ground |
Always |
10 kΩ or higher |
|
I82-10 (+DP2) or I5-12 (MSTI) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK COMBINATION METER ASSEMBLY (OUTPUT VOLTAGE) |
|
*a |
Front view of wire harness connector (to Spiral Cable Sub-assembly) |
(a) Connect the I5 combination meter assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I82-11 (+DP) - Body ground |
Ignition switch ON |
4.8 to 5.2 V |
|
I82-10 (+DP2) - Body ground |
Ignition switch ON |
4.8 to 5.2 V |
| NG |
|
REPLACE COMBINATION METER ASSEMBLY
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|
|
5. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY AND BODY GROUND) |
(a) Disconnect the I55 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 |
|---|---|---|
|
I55-20 (SWG) - I182-4 (EAU) |
Always |
Below 1 Ω |
|
I55-1 (GND1) - Body ground |
Always |
Below 1 Ω |
| OK |
|
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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