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.
2008 Lexus IS FFACTORY OEM SERVICE PROCEDURE
Automatic Transaxle
- Automatic Transmission System
- Precaution
- Definition Of Terms
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Road Test
- Mechanical System Tests
- Hydraulic Test
- Manual Shifting Test
- Registration
- Initialization
- Monitor Drive Pattern
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- DTC Check / Clear
- Check Mode Procedure
- Fail-Safe Chart
- Data List / Active Test
- Diagnostic Trouble Code Chart
- DTC P0500: Vehicle Speed Sensor "A"; DTC P0502: Vehicle Speed Sensor "A" Circuit Low; DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High
- DTC P0560: System Voltage
- DTC P0617: Starter Relay Circuit High
- DTC P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
- DTC P0710: Transmission Fluid Temperature Sensor "A" Circuit; DTC P0712: Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713: Transmission Fluid Temperature Sensor "A" Circuit High Input
- DTC P0711: Transmission Fluid Temperature Sensor "A" Performance
- DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal
- DTC P0724: Brake Switch "B" Circuit High
- DTC P0741: Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve SL); DTC P2757: Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU)
- DTC P0746: Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1)
- DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
- DTC P0771: Shift Solenoid "E" Performance (Shift Solenoid Valve SR)
- DTC P0776: Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2)
- DTC P0796: Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3)
- DTC P0872: Transmission Fluid Pressure Sensor / Switch "C" Circuit Low
- DTC P0873: Transmission Fluid Pressure Sensor / Switch "C" Circuit High
- DTC P0985: Shift Solenoid "E" Control Circuit Low (Shift Solenoid Valve SR); DTC P0986 Shift Solenoid "E" Control Circuit High (Shift Solenoid Valve SR)
- DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)
- DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
- DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
- DTC P2765: Input / Turbine Speed Sensor "B" Circuit; DTC P2767: Input / Turbine Speed Sensor "B" Circuit No Signal
- DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
- DTC P2808: Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4)
- DTC P2817: Pressure Control Solenoid "H" Performance or Stuck OFF (Shift Solenoid Valve SL5)
- DTC U0100: Lost Communication with ECM / PCM "A"
- Transmission Control Switch Circuit
- Shift Paddle Switch Circuit
- TCM Power Source Circuit
- Kick Down Switch Circuit
- Pattern Select Switch Circuit
- Automatic Transmission Fluid
- Speed Sensor
- Transmission Wire
- Valve Body Assembly
- Park / Neutral Position Switch
- Air Cooled Oil Cooler
- Shift Lever
- Shift Paddle Switch
- Pattern Select Switch
- Transmission Control Switch
- Automatic Transmission Rear Oil Seal
- Automatic Transmission Assembly
- Automatic Transmission Unit
- Torque Converter Clutch And Drive Plate
- TCM
- Oil Pump
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.
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