Continuity Test

Disconnect combination switch connectors. Check for continuity between specified terminals. See appropriate WIPER/WASHER SWITCH CONTINUITY table. See Fig 1. If there is no continuity, replace switch. If there is continuity, apply battery voltage across terminals B16 and B18. Check continuity between terminals B7 and B18. If there is continuity, switch is okay. If there is no continuity, replace switch.

WIPER/WASHER SWITCH CONTINUITY

Switch Position

Terminals

Wiper OFF

Mist OFF ⁽¹⁾

B4 & B7

Mist ON ⁽²⁾

B7 & B18

Wiper INT

Mist OFF ⁽¹⁾

B4 & B7; B12 & B16

Mist ON ⁽²⁾

B7 & B18; B12 & B16

Wiper LOW

B7 & B18

Wiper HIGH

Mist OFF ⁽¹⁾

B13 & B18

Mist ON ⁽²⁾

B7, B13 & B18

Washer

OFF

⁽³⁾*

B8 & B16

⁽¹⁾	Lever in normal position.

⁽²⁾	Pull lever toward you.

⁽³⁾	No continuity between terminals B8 and B16.

Fig 1: Wiper/Washer Switch Terminal ID (LS400)