Contents Wiring diagrams Section: Wiper/washer Systems All sections

Wiper/washer System: Diagnosis Lexus LS II

Wiper/washer Systems 2 illustrations

WASHER MOTOR TEST

Note. DO NOT operate washer motor for more than 20 seconds.

Apply battery voltage and ground between washer motor terminals No. 1 (+) and 2 (-). (Scheme 1) Replace washer motor if it does not operate.

Scheme 1

Scheme 1: WASHER MOTOR TEST

Continuity Test

Disconnect combination switch connectors. Check for continuity between specified wiper switch terminals. See WIPER/WASHER SWITCH CONTINUITY table. (Scheme 2) If continuity is not as specified, replace combination switch.

Switch PositionContinuity Between Terminals No.
Wiper Off
Mist Off (1)7 & 16
Mist On (2)7 & 17
Wiper Intermittent
Mist Off (1)2 & 4; 7 & 16
Mist On (2)2 & 4; 7 & 17
Wiper Low7 & 17
Wiper High1 & 2; 8 & 17
Washer
Off(3)
On2 & 11
(1) Lever in normal position. (2) Pull lever toward you. (3) No continuity between terminals No. 2 and 11.
(1)Lever in normal position.
(2)Pull lever toward you.
(3)No continuity between terminals No. 2 and 11.

WIPER/WASHER SWITCH CONTINUITY

Scheme 2

Scheme 2