WIPER / WASHER: WIPER AND WASHER SYSTEM (for Gasoline Model): DATA LIST / ACTIVE TEST; 2020 - 2025 MY Corolla Corolla Hatchback GR Corolla [01/2019

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001GW2B
Model Year Start: 2020	Model: GR Corolla	Prod Date Range: [01/2019 - ]
Title: WIPER / WASHER: WIPER AND WASHER SYSTEM (for Gasoline Model): DATA LIST / ACTIVE TEST; 2020 - 2025 MY Corolla Corolla Hatchback GR Corolla [01/2019 - ]

DATA LIST / ACTIVE TEST

DATA LIST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus:

(1) for Main Body: Body Electrical / Main Body / Data List.

(2) for Combination Meter: Body Electrical / Combination Meter / Data List.

(3) for Steering Angle Sensor: Chassis / Steering Angle Sensor / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Communication Humidity/Rain Sensor

Connection status between rain sensor and main body ECU (multiplex network body ECU)

STOP or OK

STOP: Not Connected

OK: Connected

DTCs are stored if a malfunction occurs in the CAN communication system.

The Number of DTC

Number of trouble codes

0 to 255

Number of stored DTCs displayed

Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Washer Level Warning Switch

Washer fluid level warning switch

OFF or ON

OFF: Washer fluid level not low

ON: Washer fluid level low

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
Wiper Spec Info	Function information	Unknown, Auto spec or INT spec	Unknown: Specification not stored Auto spec: w/ Auto wiper system INT spec: w/o Auto wiper system	-
The Number of DTCs	Number of trouble codes	0 to 255	Number of stored DTCs displayed	-

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

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the 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	Measurement Item	Control Range	Diagnostic Note
Wiper Power Relay	Function to operate the IG1 NO. 3 relay	OFF or ON	-
Front Washer Relay	Function to operate the windshield washer motor and pump assembly (Front)	OFF or ON	-
Rear Washer Relay	Function to operate the windshield washer motor and pump assembly (Rear)	OFF or ON	*
Rear Wiper Operation	Function to operate the rear wiper motor assembly	OFF or ON	*
Front Wiper Lo Operation	Function to operate the windshield wiper motor assembly in LO	OFF or ON	-
Front Wiper Hi Operation	Function to operate the windshield wiper motor assembly in HI	OFF or ON	-

*: w/ Rear Wiper System