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.
2006 Lexus IS 250 AWDFACTORY OEM SERVICE PROCEDURE
Transfer Case: Transfer
- Transfer System
- Four Wheel Drive Control System
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Hydraulic Test
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- DTC Check / Clear
- Data List / Active Test
- Diagnostic Trouble Code Table
- DTC C1241/94 Low Power Supply Voltage
- DTC C1296/96 ABS Malfunction
- DTC C1297/97 Steering Angle Sensor
- DTC C1298/98 Linear Solenoid Circuit
- DTC C1299/99 Cancellation of 4WD Control
- DTC U0073/86, U0100/85, U0122/83, U0126/84: Control Module Communication Bus OFF; Lost Communication with ECM / PCM "A"; Lost Communication with Vehicle Dynamics Control Module; Lost Communication with Steering Angle Sensor Module
- TC and CG Terminal Circuit
- Transfer Case Front Oil Seal
- Transfer Case Rear Oil Seal
- Transfer Assembly
- Transfer Valve Body Assembly
- Transfer Control Solenoid
- Transfer Wire
- 4WD Control Ecu
Factory Service Tools
Use the Manual With the Right Hardware
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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.