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.
2012 Lexus CT 200h BaseFACTORY OEM SERVICE PROCEDURE
OEM System Circuits
- Power Source
- Back Door Opener, Engine Immobilizer System, Smart Access System with Push-Button Start, Starting and Wireless Door Lock Control
- Ignition
- Cruise Control, Dynamic Radar Cruise Control, Engine Control, Hybrid System and Shift Control System
- Data Link Connector 3
- Multiplex Communication System (AVC-LAN)
- Multiplex Communication System (CAN)
- Headlight
- Turn Signal Flasher Assembly
- Stop Light
- Back-Up Light
- Front Fog Light
- Interior Light
- Illumination and Taillight
- Headlight Beam Level Control
- Automatic Light Control and Light Auto Turn Off System
- Dock Lock Control
- Theft Deterrent
- ABS, Hill-Start Assist Control, TRAC and VSC
- SRS
- Seat Belt Warning
- EPS
- Pre-Collision System
- Tire Pressure Warning System
- Power Window
- Remote Control Mirror (w/Seat Position Memory)
- Remote Control Mirror (w/o Seat Position Memory)
- Sliding Roof
- Front Wiper and Washer (w/Auto Wiper System)
- Front Wiper and Washer (w/o Auto Wiper System)
- Rear Wiper Motor Assembly
- Headlight Cleaner
- Front Window Deicer
- Mirror Heater and Rear Window Defogger
- Power Seat (Driver's Seat w/Seat Position Memory)
- Power Seat (Driver's Seat w/o Seat Position Memory)
- Seat Heater
- Horn
- Power Outlet
- Fuel Lid Opener
- Electric Tension Reducer
- Heated Steering Wheel System
- Garage Door Opener
- Automatic Glare-Resistant EC Mirror with Compass and Parking Assist (Rear View Monitor w/o LEXUS Navigation System)
- LEXUS ENFORM or Safety Connect
- Parking Assist (Intuitive Parking Assist)
- Vehicle Proximity Notification System
- Audio System (w/LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Back Guide Monitor or Rear View Monitor w/LEXUS Navigation System)
- Audio System (w/o LEXUS Navigation System w/Stereo Component Amplifier)
- Audio System (w/o LEXUS Navigation System w/o Stereo Component Amplifier)
- Combination Meter
- Cooling Fan
- Air Conditioning
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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