Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028WPK
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: WIPER / WASHER: WIPER AND WASHER SYSTEM (for Gasoline Model): Wiper and Washer Switch Circuit; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]

Wiper and Washer Switch Circuit

DESCRIPTION

The condition of the windshield wiper switch assembly is detected and sent to the steering sensor in this circuit.

WIRING DIAGRAM

except G16E-GTS:
except G16E-GTS:
for G16E-GTS:
for G16E-GTS:

PROCEDURE

1.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(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

Measurement Item

Range

Normal Condition

Diagnostic Note

Wiper OFF Switch

Front wiper switch OFF position signal

OFF or ON

OFF: Front wiper switch not in OFF position

ON: Front wiper switch in OFF position

-

Wiper Auto/Int Switch

Front wiper switch INT position signal

OFF or ON

OFF: Front wiper switch not in INT position

ON: Front wiper switch in INT position

-

Wiper Lo Switch

Front wiper switch LO position signal

OFF or ON

OFF: Front wiper switch not in LO position

ON: Front wiper switch in LO position

-

Wiper Hi Switch

Front wiper switch HI position signal

OFF or ON

OFF: Front wiper switch not in HI position

ON: Front wiper switch in HI position

-

Wiper Mist Switch

Front wiper switch MIST position signal

OFF or ON

OFF: Front wiper switch not in MIST position

ON: Front wiper switch in MIST position

-

Washer Switch

Washer switch Fr WASH position signal

OFF or ON

OFF: Washer switch not in Fr WASH position

ON: Washer switch in Fr WASH position

-

Rear Wiper Lo Switch

Rear wiper switch Rr ON position signal

OFF or ON

OFF: Rear wiper switch not in Rr ON position

ON: Rear wiper switch in Rr ON position

*1

Rear Wiper Hi Switch

Rear wiper switch Rr INT position signal

OFF or ON

OFF: Rear wiper switch not in Rr INT position

ON: Rear wiper switch in Rr INT position

*1

Rear Washer Switch

Washer switch Rr WASH position signal

OFF or ON

OFF: Washer switch not in Rr WASH position

ON: Washer switch in Rr WASH position

*1

Intermittent Time Volume

Intermittent time adjustment switch condition

Shortest, Shorter, Longer or Longest

Shortest: P4

Shorter: P3

Longer: P2

Longest: P1

*2
  • *1: w/ Rear Wiper System
  • *2: Refer to Inspection for each position of the switch. (w/ Intermittent Time Adjustment Switch)

    Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; WIPER / WASHER: WIPER SWITCH: INSPECTION

Chassis > Steering Angle Sensor > Data List

Tester Display

Wiper OFF Switch

Wiper Auto/Int Switch

Wiper Lo Switch

Wiper Hi Switch

Wiper Mist Switch

Washer Switch

Rear Wiper Lo Switch

Rear Wiper Hi Switch

Rear Washer Switch

Intermittent Time Volume

OK:

The Techstream display changes correctly in response to the windshield wiper switch assembly operation.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

(a) Remove the windshield wiper switch assembly.

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; WIPER / WASHER: WIPER SWITCH: REMOVAL

(b) Inspect the windshield wiper switch assembly.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; WIPER / WASHER: WIPER SWITCH: INSPECTION

NG

REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY

OK

3.

INSPECT STEERING WHEEL SWITCH HOUSING

(a) Remove the steering wheel switch housing.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (EXT): SWITCH HOUSING: REMOVAL

(b) Inspect the steering wheel switch housing.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): SWITCH HOUSING: INSPECTION

NG

REPLACE STEERING WHEEL SWITCH HOUSING

OK

4.

CHECK HARNESS AND CONNECTOR (STEERING SENSOR - WINDSHIELD WIPER RELAY)

(a) Disconnect the A56 windshield wiper relay connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

for G16E-GTS:

Tester Connection

Condition

Specified Condition

I46-2 (2S) - A56-3 (2S)

Always

Below 1 Ω

I46-2 (2S) or A56-3 (2S) - Body ground

Always

10 kΩ or higher

except G16E-GTS:

Tester Connection

Condition

Specified Condition

I211-2 (2S) - A56-3 (2S)

Always

Below 1 Ω

I211-2 (2S) or A56-3 (2S) - Body ground

Always

10 kΩ or higher
OK

REPLACE WINDSHIELD WIPER RELAY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR