Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001H0SV |
Model Year Start: 2020 |
Model: GR Corolla |
Prod Date Range: [01/2019 -
] |
Title: WIPER / WASHER: WIPER AND WASHER SYSTEM (for Gasoline Model): Front Wiper Motor Circuit; 2020 - 2025 MY Corolla Corolla Hatchback GR Corolla [01/2019 - ] |
Front Wiper Motor Circuit
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DESCRIPTION
The windshield wiper relay controls the windshield wiper motor assembly through this circuit.
WIRING DIAGRAM
PROCEDURE
1.
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PERFORM ACTIVE TEST USING TECHSTREAM
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(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter following menus: Body Electrical / Main Body / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test
Tester Display
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Measurement Item
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Control Range
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Diagnostic Note
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Front Wiper Lo Operation
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Function to operate the windshield wiper motor assembly in LO
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OFF or ON
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-
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Front Wiper Hi Operation
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Function to operate the windshield wiper motor assembly in HI
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OFF or ON
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-
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Body Electrical > Main Body > Active Test
Tester Display
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Front Wiper Lo Operation
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Body Electrical > Main Body > Active Test
Tester Display
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Front Wiper Hi Operation
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OK:
Windshield wiper motor assembly operates normally.
NG
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|
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2.
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INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY
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(a) Remove the windshield wiper motor assembly.
Click here
(b) Inspect the windshield wiper motor assembly.
Click here
OK
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|
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3.
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CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY - WINDSHIELD WIPER MOTOR ASSEMBLY)
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(a) Disconnect the A55 and A56 windshield wiper relay connectors.
(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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A55-2 (+1) - A31-1 (+1)
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Always
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Below 1 Ω
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A55-4 (+2) - A31-4 (+2)
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Always
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Below 1 Ω
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A56-6 (+SM) - A31-3 (+S)
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Always
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Below 1 Ω
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A55-2 (+1) or A31-1 (+1) - Body ground
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Always
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10 kΩ or higher
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A55-4 (+2) or A31-4 (+2) - Body ground
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Always
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10 kΩ or higher
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A56-6 (+SM) or A31-3 (+S) - 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 HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR 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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A31-5 (E) - 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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