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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 appropriate LIGHT CONTROL SWITCH CONTINUITY TEST TABLE . If there is no continuity, replace switch.

LIGHT CONTROL SWITCH CONTINUITY TEST

Switch Position Terminals No.
Headlight/Taillight Switch
Off (1)
Tail 15 & 18
Head 14, 15 & 16
Auto 13 & 16
Foglight Switch
Off (1)
On 11 & 12
Dimmer Switch
Flash-To-Pass 8, 9 & 17
Low Beam 17 & 18
High Beam 8 & 17
Turn Signal Switch
Left 1 & 2
Neutral (1)
Right 2 & 3
(1) Continuity should not exist between any terminals.
Fig 1: Identifying Combination Switch Connector Terminals
G96J07647Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002