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Continuity Test

Disconnect combination switch connectors. Check for continuity between specified wiper switch terminals. See WIPER/WASHER SWITCH CONTINUITY  table. See Fig 1. If continuity is not as specified, replace combination switch.

WIPER/WASHER SWITCH CONTINUITY

Switch Position Continuity Between Terminals
Wiper Off
Mist Off (1) B8 & B17
Mist On (2) A9 & B8
Wiper Intermittent
Mist Off (1) B8 & B17
Mist On (2) A9 & B8
Wiper Low A9 & B8
Wiper High
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 toward you.
(3) No continuity between terminals A6 and A13.
Fig 1: Identifying Wiper Switch Terminals
G93G01700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002