FixVault

Light Control Switch Test

Remove steering column covers. Disconnect electrical connectors from combination switch. Check for continuity between specified terminals of combination switch connector. See Fig 1. See LIGHT CONTROL SWITCH CONTINUITY TEST  table. If there is no continuity, replace switch.

LIGHT CONTROL SWITCH CONTINUITY TEST

Switch Position Terminals
Headlight/Taillight Switch
Off (1)
Tail B3 & B4
Head B3, B4 & B13
Auto B4 & B12
Dimmer Switch
Flash-To-Pass B7, B9 & B18
Low Beam B4 & B18
High Beam B9 & B18
Turn Signal Switch
Left A4, A7 & B10
Neutral (1)
Right A4, A7 & A14
Fog Light Switch
On A10 & A11
Off (1)
(1) Continuity should not exist between any terminals.
Fig 1: Identifying Combination Switch Connector Terminals
G93I01683Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002