Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM10000000277LN |
Model Year Start: 2023 |
Model: Corolla |
Prod Date Range: [09/2022 -
] |
Title: WIPER / WASHER: WIPER AND WASHER SYSTEM (for HV Model): Wiper and Washer Switch Circuit; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] |
Wiper and Washer Switch Circuit
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DESCRIPTION
The condition of the windshield wiper switch assembly is detected and sent to the steering sensor in this circuit.
WIRING DIAGRAM
PROCEDURE
1.
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READ VALUE USING TECHSTREAM
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(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / Steering Angle Sensor / Data List.
(e) Read the Data List according to the display on the Techstream.
Chassis > Steering Angle Sensor > Data List
Tester Display
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Measurement Item
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Range
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Normal Condition
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Diagnostic Note
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Wiper OFF Switch
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Front wiper switch OFF position signal
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OFF or ON
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OFF: Front wiper switch not in OFF position
ON: Front wiper switch in OFF position
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-
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Wiper Auto/Int Switch
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Front wiper switch INT position signal
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OFF or ON
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OFF: Front wiper switch not in INT position
ON: Front wiper switch in INT position
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-
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Wiper Lo Switch
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Front wiper switch LO position signal
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OFF or ON
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OFF: Front wiper switch not in LO position
ON: Front wiper switch in LO position
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-
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Wiper Hi Switch
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Front wiper switch HI position signal
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OFF or ON
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OFF: Front wiper switch not in HI position
ON: Front wiper switch in HI position
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-
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Wiper Mist Switch
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Front wiper switch MIST position signal
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OFF or ON
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OFF: Front wiper switch not in MIST position
ON: Front wiper switch in MIST position
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-
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Washer Switch
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Washer switch Fr WASH position signal
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OFF or ON
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OFF: Washer switch not in Fr WASH position
ON: Washer switch in Fr WASH position
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-
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Intermittent Time Volume
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Intermittent time adjustment switch condition
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Shortest, Shorter, Longer or Longest
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Shortest: P4
Shorter: P3
Longer: P2
Longest: P1
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*
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-
*: Refer to Inspection for each position of the switch.
Click here
Chassis > Steering Angle Sensor > Data List
Tester Display
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Wiper OFF Switch
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Wiper Auto/Int Switch
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Wiper Lo Switch
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Wiper Hi Switch
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Wiper Mist Switch
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Washer Switch
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Intermittent Time Volume
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OK:
The Techstream display changes correctly in response to the windshield wiper switch assembly operation.
NG
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|
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2.
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INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY
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(a) Remove the windshield wiper switch assembly.
Click here
(b) Inspect the windshield wiper switch assembly.
Click here
OK
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|
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3.
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INSPECT STEERING WHEEL SWITCH HOUSING
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(a) Remove the steering wheel switch housing.
Click here
(b) Inspect the steering wheel switch housing.
Click here
OK
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|
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4.
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CHECK HARNESS AND CONNECTOR (STEERING SENSOR - WINDSHIELD WIPER RELAY)
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(a) Disconnect the A56 windshield wiper relay 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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I211-2 (2S) - A56-3 (2S)
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Always
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Below 1 Ω
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I211-2 (2S) or A56-3 (2S) - 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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