Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS1999RX 300 AWD V6-3.0L (1MZ-FE)REPAIR AND DIAGNOSISDIAGRAMSELECTRICAL DIAGRAMSHEADLAMPHEADLAMP CONTROL MODULESERVICE HINTSAUTOMATIC LIGHT CONTROL
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)
Automatic Light Control
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)SECTION Automatic Light Control
C17 LIGHT CONTROL SW [COMB. SW]
14-16: Closed with the light control SW at TAIL or HEAD position
13-16: Closed with the light control SW at HEAD position
12-16: Closed with the light control SW at AUTO position
D9 DOOR COURTESY SW FRONT LH
1-2: Closed with the door open
D17 DRIVER DOOR ECU
17-23: Continuity with the driver door open
14-16: Closed with the light control SW at TAIL or HEAD position
13-16: Closed with the light control SW at HEAD position
12-16: Closed with the light control SW at AUTO position
D9 DOOR COURTESY SW FRONT LH
1-2: Closed with the door open
D17 DRIVER DOOR ECU
17-23: Continuity with the driver door open
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.