Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM10000000261GQ |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 -
] |
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model): Drive Mode Select Switch Circuit; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 - ] |
Drive Mode Select Switch Circuit
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DESCRIPTION
The characteristics of the electronic throttle and EPS operation change according to operation of the combination switch assembly (drivem ode select switch).
WIRING DIAGRAM
PROCEDURE
1.
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INSPECT COMBINATION SWITCH ASSEMBLY (DRIVE MODE SELECT SWITCH)
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(a) Remove the combination switch assembly (drive mode select switch).
Click here
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*a
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Component without harness connected
(Combination Switch Assembly (Drive Mode Select Switch))
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(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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7 (SEL) - 5 (E)
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Drive mode select switch pushed forward
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Below 50 Ω
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7 (SEL) - 5 (E)
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Drive mode select switch in neutral position
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10 kΩ or higher
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6 (E) - 5 (E)
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Drive mode select switch pulled rearward
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Below 50 Ω
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6 (E) - 5 (E)
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Drive mode select switch in neutral position
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10 kΩ or higher
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(c) Install the combination switch assembly (drive mode select switch).
Click here
OK
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2.
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CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)
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(a) Disconnect the I177 combination switch assembly (drive mode select switch) 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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I177-5 (E) - Body ground
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Always
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Below 1 Ω
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(c) Connect the I177 combination switch assembly (drive mode select switch) connector.
NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)
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OK
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3.
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CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)
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(a) Disconnect the A139 ECM 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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A139-31 (DMS+) - Body ground
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Drive mode select switch pushed forward
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Below 50 Ω
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A139-31 (DMS+) - Body ground
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Drive mode select switch in neutral position
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10 kΩ or higher
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A139-51 (DMS-) - Body ground
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Drive mode select switch pulled rearward
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Below 50 Ω
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A139-51 (DMS-) - Body ground
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Drive mode select switch in neutral position
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10 kΩ or higher
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(c) Connect the A139 ECM connector.
NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)
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