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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSLEXUS1999RX 300 AWD V6-3.0L (1MZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULE
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)
Body Control Module
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)SECTION Body Control Module
Testing and Inspection- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Component Tests and General Diagnostics
- Back Door Lock and Unlock Switch Circuit
- Driver Buckle Switch Circuit
- Hazard Switch Circuit
- Headlight Relay Circuit
- Hood Courtesy Switch Circuit
- Horn Circuit
- Illumination Circuit
- Key Unlock Warning Switch Circuit
- Light Control Switch Circuit
- Parking Brake Switch Circuit
- Power Source Circuit
- Rear Interior Light and Back Door Courtesy Switch Circuit
- Stop Light Switch Circuit
- Taillight Relay Circuit
- Theft Deterrent Horn Circuit
- Theft Deterrent Indicator Circuit
- Wireless Door Lock Buzzer Circuit
- Wireless Door Lock Tuner Circuit
- Pinout Values and Diagnostic Parameters
Locations
Technical Service Bulletins
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.