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 MANUALSLEXUS1998GS 300REPAIR AND DIAGNOSISBODY & FRAMEBODY, CAB CONTROL SYSTEMSBODY CONTROL SYSTEM
1998 Lexus GS 300
Body Control System
1998 Lexus GS 300SECTION Body Control System
- Description & Operation
- Trouble Shooting
- Circuit Tests
- Power Window Master Switch Circuit
- Passenger Door Lock Control Switch Circuit
- Driver Door Key Lock & Unlock Switch Circuit
- Passenger Door Key Lock & Unlock Switch Circuit
- Key Unlock Warning Switch Circuit
- Driver Door Lock Motor Circuit
- Passenger Door Lock Motor Circuit
- Left Rear Door Lock Motor Circuit
- Right Rear Door Lock Motor Circuit
- Luggage Compartment Door Opener Switch Circuit
- Luggage Compartment Door Opener Motor Circuit
- Wireless Door Lock Tuner Circuit
- Driver Door Unlock Detection Switch Circuit
- Passenger Door Unlock Detection Switch Circuit
- Left Rear Door Unlock Detection Switch Circuit
- Right Rear Door Unlock Detection Switch Circuit
- Driver Door Courtesy Light & Courtesy Switch Circuit
- Passenger Door Courtesy Light & Courtesy Switch Circuit
- Left Rear Door Courtesy Light & Courtesy Switch Circuit
- Right Rear Door Courtesy Light & Courtesy Switch Circuit
- Wireless Door Lock Buzzer Circuit
- Anti-Theft Indicator Circuit
- Engine Hood Courtesy Switch Circuit
- Luggage Compartment Door Courtesy Switch Circuit
- Headlight Relay Circuit
- Taillight Relay Circuit
- Hazard Switch Circuit
- Anti-Theft Horn Circuit
- Standard Horn Circuit
- Stoplight Switch Circuit
- Shift Lock Solenoid Circuit
- Light Sensor Circuit
- Headlight Control Switch Circuit
- Illumination Circuit
- Driver Seat Belt Buckle Switch Circuit
- Passenger Seat Belt Buckle Switch Circuit
- Clock Circuit
- Defogger Relay Circuit
- Power Source Circuit No. 1
- Power Source Circuit No. 2
- Component Tests
- Anti-Theft Horn
- Anti-Theft Indicator
- Clock
- Door Courtesy Light
- Door Courtesy Switch
- Door Unlock Detection Switch
- Driver Seat Belt Buckle Switch
- Engine Hood Courtesy Switch
- Hazard Switch
- Headlight Relay
- Passenger Seat Belt Buckle Switch
- Shift Lock Solenoid
- Standard Horn
- Stoplight Switch
- Taillight Relay
- Warning Occupant Detection Sensor
- Wireless Door Lock Buzzer
- Pin Voltage Tests
- Wiring Diagrams
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.