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
Diagnostic Trouble Code Chart
Automatic Transmission System
DIAGNOSTIC TROUBLE CODE CHART
| DTC Code | Detection Item | Trouble Area | MIL*1 | Memory*2 |
|---|---|---|---|---|
| P0500 | Vehicle Speed Sensor "A" |
|
Comes on | DTC stored |
| P0502 | Vehicle Speed Sensor "A" Circuit Low |
|
Comes on | DTC stored |
| P0503 | Vehicle Speed Sensor "A" Intermittent/Erratic/High |
|
Comes on | DTC stored |
| P0560 | System Voltage |
|
Comes on | DTC stored |
| P0617 | Starter Relay Circuit High |
|
Comes on | DTC stored |
| P0705 | Transmission Range Sensor Circuit Malfunction (PRNDL Input) |
|
Comes on | DTC stored |
| P0710 | Transmission Fluid Temperature Sensor "A" Circuit |
|
Comes on | DTC stored |
| P0711 | Transmission Fluid Temperature Sensor "A" Performance |
|
Comes on | DTC stored |
| P0712 | Transmission Fluid Temperature Sensor "A" Circuit Low Input |
|
Comes on | DTC stored |
| P0713 | Transmission Fluid Temperature Sensor "A" Circuit High Input |
|
Comes on | DTC stored |
| P0715 | Input/Turbine Speed Sensor Circuit Malfunction |
|
Comes on | DTC stored |
| P0717 | Input Speed Sensor Circuit No Signal |
|
Comes on | DTC stored |
| P0724 | Brake Switch "B" Circuit High |
|
Comes on | DTC stored |
| P0741 | Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve SL) |
|
Comes on | DTC stored |
| P0746 | Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1) |
|
Comes on | DTC stored |
| P0748 | Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1) |
|
Comes on | DTC stored |
| P0771 | Shift Solenoid "E" Performance (Shift Solenoid Valve SR) |
|
Comes on | DTC stored |
| P0776 | Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2) |
|
Comes on | DTC stored |
| P0778 | Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2) |
|
Comes on | DTC stored |
| P0796 | Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3) |
|
Comes on | DTC stored |
| P0798 | Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3) |
|
Comes on | DTC stored |
| P0872 | Transmission Fluid Pressure Sensor / Switch "C" Circuit Low |
|
Comes on | DTC stored |
| P0873 | Transmission Fluid Pressure Sensor / Switch "C" Circuit High |
|
Comes on | DTC stored |
| P0985 | Shift Solenoid "E" Control Circuit Low (Shift Solenoid Valve SR) |
|
Comes on | DTC stored |
| P0986 | Shift Solenoid "E" Control Circuit High (Shift Solenoid Valve SR) |
|
Comes on | DTC stored |
| P2714 | Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) |
|
Comes on | DTC stored |
| P2716 | Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT) |
|
Comes on | DTC stored |
| P2757 | Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) |
|
Comes on | DTC stored |
| P2759 | Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) |
|
Comes on | DTC stored |
| P2765 | Input/Turbine Speed Sensor "B" Circuit |
|
Comes on | DTC stored |
| P2767 | Input/Turbine Speed Sensor "B" Circuit No Signal |
|
Comes on | DTC stored |
| P2769 | Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) |
|
Comes on | DTC stored |
| P2770 | Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) |
|
Comes on | DTC stored |
| P2808 | Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4) |
|
Comes on | DTC stored |
| P2810 | Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4) |
|
Comes on | DTC stored |
| P2817 | Pressure Control Solenoid "H" Performance or Stuck OFF (Shift Solenoid Valve SL5) |
|
Comes on | DTC stored |
| P2819 | Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5) |
|
Comes on | DTC stored |
| U0100 | Lost Communication with ECM / PCM "A" |
|
Comes on | DTC stored |
HINT:
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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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