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 MANUALSSCION2008XD AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 58 (AUTOMATIC TRANSAXLE (DIAGNOSTIC CODES (P0791-U0100) & CIRCUIT TESTS))
2008 Scion xD Automatic
Section 58 (Automatic Transaxle (Diagnostic Codes (P0791-U0100) & Circuit Tests))
2008 Scion xD AutomaticSECTION Section 58 (Automatic Transaxle (Diagnostic Codes (P0791-U0100) & Circuit Tests))
WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- Automatic Transaxle System
- DTC P0791: Intermediate Shaft Speed Sensor "A" Circuit (TO 12/2010); DTC P0793: Intermediate Shaft Speed Sensor "A" (TO 12/2010)
- DTC P0791: Intermediate Shaft Speed Sensor "A" Circuit (TO 12/2010); DTC P0793: Intermediate Shaft Speed Sensor "A" (FROM 12/2010)
- DTC P0796: Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3) (TO 12/2010)
- DTC P0796: Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3) (FROM 12/2010)
- DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3) (TO 12/2010)
- DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3) (FROM 12/2010)
- DTC P0989: Transmission Fluid Pressure Sensor / Switch "E" Circuit Low (TO 12/2010); DTC P0990: Transmission Fluid Pressure Sensor / Switch "E" Circuit High (TO 12/2010)
- DTC P0989: Transmission Fluid Pressure Sensor / Switch "E" Circuit Low (FROM 12/2010); DTC P0990: Transmission Fluid Pressure Sensor / Switch "E" Circuit High (FROM 12/2010)
- DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) (TO 12/2010)
- DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) (FROM 12/2010)
- DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT) (TO 12/2010)
- DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT) (FROM 12/2010)
- DTC P2757: Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) (TO 12/2010)
- DTC P2757: Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) (FROM 12/2010)
- DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) (TO 12/2010)
- DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) (FROM 12/2010)
- DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) (TO 12/2010); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) (TO 12/2010)
- DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) (FROM 12/2010); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) (FROM 12/2010)
- DTC P2808: Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4) (TO 12/2010)
- DTC P2808: Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4) (FROM 12/2010)
- DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4) (TO 12/2010)
- DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4) (FROM 12/2010)
- DTC U0100: Lost Communication with ECM / PCM "A" (TO 12/2010)
- DTC U0100: Lost Communication with ECM / PCM "A" (FROM 12/2010)
- Circuit Tests
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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.