Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001C9SV |
Model Year Start: 2019 |
Model: GR Corolla |
Prod Date Range: [06/2018 - 09/2022] |
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for Gasoline Model): Steering Pad Switch Circuit; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022] |
Steering Pad Switch Circuit
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DESCRIPTION
The combination meter assembly and steering pad switch assembly are connected via direct line. The multi-information display in the combination meter assembly are 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.
PROCEDURE
1.
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INSPECT STEERING PAD SWITCH ASSEMBLY
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(a) Remove the steering pad switch assembly.
Click here
(b) Inspect the steering pad switch assembly.
Click here
OK
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2.
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INSPECT SPIRAL CABLE SUB-ASSEMBLY
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(a) Remove the spiral cable sub-assembly.
Click here
(b) Inspect the spiral cable sub-assembly.
Click here
OK
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3.
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CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY)
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(a) Disconnect the I4 combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I82-11 (+DP) - I4-32 (MSM+)
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Always
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Below 1 Ω
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I82-10 (+DP2) - I4-15 (MSTI)
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Always
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Below 1 Ω
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I82-11 (+DP) or I4-32 (MSM+) - Body ground
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Always
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10 kΩ or higher
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I82-10 (+DP2) or I4-15 (MSTI) - Body ground
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Always
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10 kΩ or higher
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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OK
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4.
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CHECK COMBINATION METER ASSEMBLY (OUTPUT VOLTAGE)
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*a
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Front view of wire harness connector
(to Spiral Cable Sub-assembly)
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(a) Connect the I4 combination meter assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
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Condition
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Specified Condition
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I82-11 (+DP) - Body ground
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Engine switch on (IG)
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4.8 to 5.2 V
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I82-10 (+DP2) - Body ground
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Engine switch on (IG)
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4.8 to 5.2 V
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OK
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5.
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CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY)
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(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
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Condition
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Specified Condition
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I82-4 (EAU) - I55-24 (SWG)
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Always
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Below 1 Ω
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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OK
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6.
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CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BODY GROUND)
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(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I55-1 (GND1) - Body ground
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Always
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Below 1 Ω
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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