Toyota Prius: Wiper Switch

• Removal
• Inspection
• Installation

Removal

REMOVAL

CAUTION / NOTICE / HINT

Procedure		Part Name Code
1	STEERING WHEEL POSITION	-		-	-
2	NO. 3 STEERING WHEEL LOWER COVER	45187		-	-
3	NO. 2 STEERING WHEEL LOWER COVER	45186		-	-
4	LOWER STEERING COLUMN COVER	45287		-	-
5	UPPER STEERING COLUMN COVER	45286B		-	-
6	WINDSHIELD WIPER SWITCH ASSEMBLY	84650		-	-

*A

w/o Driver Monitor Camera

*B

w/ Driver Monitor Camera

PROCEDURE

1. STEERING WHEEL POSITION

Lower

Extend

(1) Release the tilt and telescopic lever and fully extend and lower the steering column sub-assembly.

2. REMOVE NO. 3 STEERING WHEEL LOWER COVER

(1) Using a screwdriver with its tip wrapped with protective tape, disengage the 2 claws and 2 guides to remove the No. 3 steering wheel lower cover as shown in the illustration.

3. REMOVE NO. 2 STEERING WHEEL LOWER COVER

(a) Use the same procedure as for the No. 3 steering wheel lower cover.

4. REMOVE LOWER STEERING COLUMN COVER

NOTICE: Removing the lower steering column cover in the incorrect order will cause the parts to break.

Push in this direction

-

-

(1) Remove the 3 screws.

(2) Push the lower steering column cover and disengage the 2 claws as shown in the illustration to remove the lower steering column cover.

5. REMOVE UPPER STEERING COLUMN COVER

w/ Driver Monitor Camera: NOTICE: As there is a possibility of the upper steering column cover cracking, do not apply oil, grease, etc., at the position shown in the illustration.

(a) w/o Driver Monitor Camera:

Remove in this Direction

-

-

(b) w/ Driver Monitor Camera:

Remove in this Direction

-

-

6. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY

Remove in this Direction

-

-

(1) Using a screwdriver with its tip wrapped with protective tape, disengage the claw and remove the windshield wiper switch assembly as shown in the illustration.

NOTICE:

If the claw is pulled with excessive force, it may break.

Inspection

INSPECTION

PROCEDURE

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Front Wiper Switch Click Location & Routing(z8) Click Connector(z8) Tester Connection Condition Specified Condition Result z8-14 (MIST) - z8-5 (E) MIST position Below 1 Ω Ω z8-14 (MIST) - z8-5 (E) Except MIST position 10 kΩ or higher kΩ z8-10 (W_OFF) - z8-5 (E) OFF position Below 1 Ω Ω z8-10 (W_OFF) - z8-5 (E) Except OFF position 10 kΩ or higher kΩ z8-13 ( S) - z8-5 (E) AUTO position*1 Below 1 Ω Ω z8-13 ( S) - z8-5 (E) INT position*2 Below 1 Ω Ω z8-13 ( S) - z8-5 (E) Except AUTO position*1 10 kΩ or higher kΩ z8-13 ( S) - z8-5 (E) Except INT position*2 10 kΩ or higher kΩ z8-11 ( 1) - z8-5 (E) LO position Below 1 Ω Ω z8-11 ( 1) - z8-5 (E) Except LO position 10 kΩ or higher kΩ z8-12 ( 2) - z8-5 (E) HI position Below 1 Ω Ω z8-12 ( 2) - z8-5 (E) Except HI position 10 kΩ or higher kΩ Front Washer Switch Click Location & Routing(z8) Click Connector(z8) Tester Connection Condition Specified Condition Result z8-15 (WF) - z8-5 (E) ON position Below 1 Ω Ω z8-15 (WF) - z8-5 (E) OFF position 10 kΩ or higher kΩ Auto Sensitivity Adjustment Switch*1*3 Click Location & Routing(z8) Click Connector(z8) Tester Connection Condition Specified Condition Result z8-4 (VR) - z8-5 (E) P1 position 1102 to 1218 Ω Ω z8-4 (VR) - z8-5 (E) P2 position 570 to 630 Ω Ω z8-4 (VR) - z8-5 (E) P3 position 256.5 to 283.5 Ω Ω z8-4 (VR) - z8-5 (E) P4 position Below 1 Ω Ω Intermittent Time Adjustment Switch*2*3 Click Location & Routing(z8) Click Connector(z8) Tester Connection Condition Specified Condition Result z8-4 (VR) - z8-5 (E) P1 position 1102 to 1218 Ω Ω z8-4 (VR) - z8-5 (E) P2 position 570 to 630 Ω Ω z8-4 (VR) - z8-5 (E) P3 position 256.5 to 283.5 Ω Ω z8-4 (VR) - z8-5 (E) P4 position Below 1 Ω Ω *1: w/ Auto Wiper System *2: w/o Auto Wiper System *3: w/ Adjusting Ring If the result is not as specified, replace the windshield wiper switch assembly.

*a Component without harness connected (Windshield Wiper Switch Assembly) *b Windshield Wiper Switch Assembly (Adjusting Ring Position)

Installation

INSTALLATION

CAUTION / NOTICE / HINT

Procedure		Part Name Code
1	WINDSHIELD WIPER SWITCH ASSEMBLY	84650	-	-	-
2	UPPER STEERING COLUMN COVER	45286B		-	-
3	LOWER STEERING COLUMN COVER	45287	-	-	-
4	NO. 2 STEERING WHEEL LOWER COVER	45186	-	-	-
5	NO. 3 STEERING WHEEL LOWER COVER	45187	-	-	-

*A

w/o Driver Monitor Camera

*B

w/ Driver Monitor Camera

PROCEDURE

1. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY

2. INSTALL UPPER STEERING COLUMN COVER

w/ Driver Monitor Camera: NOTICE: As there is a possibility of the upper steering column cover cracking, do not apply oil, grease, etc., at the position shown in the illustration.

3. INSTALL LOWER STEERING COLUMN COVER

4. INSTALL NO. 2 STEERING WHEEL LOWER COVER

5. INSTALL NO. 3 STEERING WHEEL LOWER COVER