Home Vehicle Exterior Wiper/Washer WIPER SWITCH
Last Modified: 11-27-2007 1.6 G
Service Category: Vehicle Exterior Section: Wiper/Washer
Model Year: 2008 Model: LX570 Doc ID: RM000001Y2V009X
Title: WIPER / WASHER: WIPER SWITCH: INSPECTION (2008 LX570)

INSPECTION

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY


(a) Check the front wiper switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

E16-1 (+S) - E16-3 (+1)

AUTO

Below 1 Ω

E16-10 (E) - E16-9 (AUTO)

E16-1 (+S) - E16-3 (+1)

Off

E16-2 (+B) - E16-3 (+1)

MIST

LO

E16-2 (+B) - E16-4 (+2)

HI

If the result is not as specified, replace the windshield wiper switch assembly.

(b) Check the front washer switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

E15-2 (EW) - E15-3 (WF)

On

Below 1 Ω

Off

10 kΩ or higher

If the result is not as specified, replace the windshield wiper switch assembly.


(c) Check the rear wiper switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

E15-2 (EW) - E15-6 (C1R)

LO

Below 1 Ω

E15-2 (EW) - E15-7 (+1R)

HI

E15-2 (EW) - E15-6 (C1R)

Off

10 kΩ or higher

E15-2 (EW) - E15-7 (+1R)

If the result is not as specified, replace the windshield wiper switch assembly.

(d) Check the rear washer switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

E15-2 (EW) - E16-5 (WR)

On

Below 1 Ω

Off

10 kΩ or higher

If the result is not as specified, replace the windshield wiper switch assembly.