LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2000 >> SC 300 >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Component Tests >> Wiper/Washer Switch >> Continuity Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Continuity Test

Disconnect 14-pin combination (wiper/washer) switch connector "A", and 18-pin combination (wiper/washer) switch connector "B". Check for continuity between specified wiper/washer switch terminals with switch in specified position. See WIPER/WASHER SWITCH CONTINUITY  table. See Fig 1. If continuity is not as specified, replace combination (wiper/washer) switch.

WIPER/WASHER SWITCH CONTINUITY

Switch Position Check Continuity Between Terminals
Wiper OFF
MIST OFF (1) B8 & B17
MIST ON (2) A9 & B8
Wiper INT
MIST OFF (1) B8 & B17
MIST ON (2) A9 & B8
Wiper LO
MIST OFF (1) A9 & B8
MIST ON (2) A9 & B8
Wiper HI
MIST OFF (1) A8 & A9
MIST ON (2) A8, A9 & B8
Washer
OFF (3)
ON A6 & A13
(1) Lever in normal position.
(2) Pull lever forward.
(3) No continuity between terminals A6 and A13.
Fig 1: Identifying Combination (Wiper/Washer) Switch Terminals
G93G01700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002