Nov 132017
 

Lexus RX300

Headlights inoperable

No lamps working, what could it be?


Using the wiring diagram provided you can see there is a main fuse and relays involved. Check those first before moving on to checking the combination switch. The combination switch would be the most common failure component.

Combination Switch – 2001 Lexus RX300 … Details

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DRL (Daytime Running Lights) Relay Testing/Inspection

DRL relay testing

 

Headlight wiring diagram 1 of 2 – 2001 Lexus RX300

(best viewed in Google Chrome or Firefox)
2001-lexus-rx300-headlights-headlamps-circuit-1-of-2

Headlight wiring diagram 2 of 2 – 2001 Lexus RX300

2001-lexus-rx300-headlights-headlamps-circuit-2-of-2

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