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Headlight Control Relay

WARNING: This page is about a different car, the 2003 Lexus GS 430, 2003 Lexus GS 300, 2002 Lexus GS 430, and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the headlight control relay continuity. See CONNECTOR IDENTIFICATION . See INSPECTING HEADLIGHT CONTROL RELAY CONTINUITY  table. If the continuity is not as specified, replace the relay.

INSPECTING HEADLIGHT CONTROL RELAY CONTINUITY

Tester Connection Condition Specified Condition
1 - 2 Constant Continuity
3 - 4 Apply B+ Between Terminals 1 & 2 Continuity