Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

Check wiper and washer switch using LEXUS hand-held tester.

PREPARATION:

Connect the LEXUS hand-held tester to the DLC3.

CHECK:

Check the wiper switch using DATA LIST.

OK:

Wiper switch:

WIPER SWITCH SPECIFICATION

Switch name (Tester display)	No pressing	Pressing
Front wiper MIST switch (F WIPER MIST SW)	OFF	ON
Front wiper AUTO switch (F WIPER AUTO SW)	OFF	ON
Front wiper HI switch (F WIPER HI SW)	OFF	ON
Front wiper LO switch (F WIPER LO SW)	OFF	ON
Front wiper INT Switch (F WIPER INT SW)	OFF	ON

Washer switch:

WASHER SWITCH SPECIFICATION

Switch name (Tester display)	No pressing	Pressing
Front washer switch (F WASHER SW)	OFF	ON

OK : Proceed to next circuit inspection shown on problem symptom table (See PROBLEM SYMPTOMS TABLE ).
NG : Replace combination switch (See REMOVAL ).