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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 MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSIONDIAGNOSIS AND TESTINGDIAGNOSTIC TROUBLE CODE (DTC) CHARTSDIAGNOSTIC TROUBLE CODE CHART
2005 Ford Taurus SEL, 4D Sedan
Diagnostic Trouble Code Chart
2005 Ford Taurus SEL, 4D SedanSECTION Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
| Five Digit DTC | Component | Description | Condition | Symptom | Action | ||
|---|---|---|---|---|---|---|---|
| P0102, P0103, PI 100, P1101 | MAF | MAF concerns. | MAF system has a malfunction which may cause a transaxle concern. See INTRODUCTION - GASOLINE for diagnosis. | Incorrect shift schedule, high/low EPC pressure. Incorrect converter engagement scheduling. Symptoms similar to a TP failure. | See INTRODUCTION - GASOLINE . | ||
| P0112 | IAT | IAT indicates 125°C (254°F). | Voltage drop across IAT exceeds scale set for temperature 125°C (254°F). | Incorrect EPC pressure. Either high or low which will result in harsh or soft shifts. | See INTRODUCTION - GASOLINE . | ||
| P0113 | IAT | IAT indicates -40°C (-40°F). | Voltage drop across IAT exceeds scale set for temperature -40°C (-40°F). | Incorrect EPC pressure. Either high or low which will result in harsh or soft shifts. | See INTRODUCTION - GASOLINE . | ||
| P0114 | IAT | IAT out of on-board diagnostic range. | IAT temperature higher or lower than expected during KOEO and KOER. | Rerun on-board diagnostic at normal operating temperature. | See INTRODUCTION - GASOLINE . | ||
| P1116 | ECT | ECT out of on-board diagnostic range. | ECT temperature higher or lower than expected during KOEO and KOER. | Rerun on-board diagnostic at normal operating temperature. | See INTRODUCTION - GASOLINE . | ||
| P0117 | ECT | ECT indicates 125°C (254°F). | ECT temperature higher or lower than expected during KOEO and KOER. | Torque converter clutch will always be off, resulting in low fuel economy. | See INTRODUCTION - GASOLINE . | ||
| P0118 | ECT | ECT indicates -40°C (-40°F). | ECT temperature higher or lower than expected during KOEO and KOER. | Torque converter clutch will always be off, resulting in low fuel economy. | See INTRODUCTION - GASOLINE . | ||
| P0122, P0123, PI 120 | TP | TP DTCs. | Powertrain control module has detected an error. This error may cause a transaxle concern. Refer to INTRODUCTION - GASOLINE for diagnosis. | Harsh engagements, firm shift feel, abnormal shift schedule, torque converter clutch does not engage. Torque converter clutch cycling. | See INTRODUCTION - GASOLINE . | ||
| P0300-P0308, P0320, P0340, P1351-P1364 | EI | EI system. | EI system has a malfunction which may cause a transaxle concern. | Engine malfunction, no converter engagement. | See INTRODUCTION - GASOLINE . | ||
| P0712 | TFT | TFT sensor circuit voltage input too low and temperature input too high. | Temperature sensor input indicates a short to ground. | Torque converter clutch and stabilized shift schedule may be enabled sooner after cold start. Harsh or soft shifts. | GO to PINPOINT TEST B . | ||
| P0713 | TFT | TFT sensor circuit voltage input too low and temperature input too high. | Temperature sensor input indicates an open circuit. | Torque converter clutch and stabilized shift schedule may be enabled sooner after cold start. Harsh or soft shifts. | GO to PINPOINT TEST B . | ||
| P1711 | TFT | TFT out of on-board diagnostic range. | Transaxle not at operating -4°C-116°C (25°F-240°F) temperature during on-board diagnostics. | Warm or cool vehicle to normal operating temperature. | GO to PINPOINT TEST B . | ||
| P0711 | TFT | No change in TFT sensor input. | PCM has detected no TFT change at low-range or high-range during operation. | May flash TCIL. | GO to PINPOINT TEST B . | ||
| P1783 | TFT | Transaxle overtemp condition indicated 149°C (300°F). | Fluid temperature exceeded 149°C (300°F). | Increase in EPC pressure during overtemp only. Will display Trans Overtemp message. | GO to PINPOINT TEST B . | ||
| P0715 | TSS | Insufficient input from Turbine Shaft Speed (TSS) Sensor. | Powertrain control module detected a loss of TSS signal during operation. | Incorrect TCC engagements. Increased engine RPM on engagements, harsh shifts. Will display Check Transmission message. | GO to PINPOINT TEST F . | ||
| P0717 | TSS | Insufficient input from Turbine Shaft Speed (TSS) sensor. | PCM detected a loss of TSS signal during operation. | Incorrect TCC engagements. Increased engine rpm on engagements, harsh shifts. Will display Check Transmission message. | GO to PINPOINT TEST F . | ||
| P0718 | TSS | TSS signal intermittent. | PCM has detected an erratic or no TSS signal. | - | GO to PINPOINT TEST F . | ||
| P0720 | OSS | Insufficient input from OSS sensor. | PCM detected a loss of OSS signal during operation. | Harsh shifts, and abnormal shift schedule. (MIL on) Will display Check Transmission message. | GO to PINPOINT TEST G . | ||
| P0721 | OSS | Output shaft speed sensor signal noisy. | PCM has detected an erratic OSS signal. | Harsh shifts, and abnormal shift schedule. | GO to PINPOINT TEST G . | ||
| P0722 | OSS | Output shaft speed sensor signal intermittent. | PCM has detected an erratic or no OSS signal. | Will display Check Transmission message. | GO to PINPOINT TEST G . | ||
| P1714 | SSA | SSA failure. | Mechanical failure of the solenoid detected. | Incorrect gear selection depending on condition, mode and manual lever position. See SOLENOID OPERATION CHART . | GO to PINPOINT TEST H . | ||
| P0750, P0753(1) | SSA | SSA solenoid circuit failure. | Solenoid 1 circuit failed to provide voltage drop across solenoid. Circuit open or shorted or PCM drive failure during on-board diagnostic. | Incorrect gear selection depending on condition mode and manual lever position. See Solenoid On/Off chart. Will display Check Transmission message. | GO to PINPOINT TEST A . | ||
| P0755, P0758(1) | SSB | SSB solenoid circuit failure. | Solenoid 2 circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM drive failure during on-board diagnostics. | Incorrect gear selection depending on condition mode and manual lever position. See SOLENOID OPERATION CHART . Will display Check Transmission message. | GO to PINPOINT TEST A . | ||
| P1715 | SSB | SSB failure. | Mechanical failure of the solenoid detected. | Incorrect gear selection depending on condition, mode and manual lever position. See SOLENOID OPERATION CHART . | GO to PINPOINT TEST H . | ||
| P1716 | SSC | SSC failure. | Mechanical failure of the solenoid detected. | Incorrect gear selection depending on condition, mode and manual lever position. See SOLENOID OPERATION CHART . | GO to PINPOINT TEST H . | ||
| P0760, P0763(1) | SSC | SSC solenoid circuit failure. | Solenoid 3 circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM drive circuit failure during on-board diagnostic. | Incorrect gear selection depending on condition mode and manual lever position. See SOLENOID OPERATION CHART . Will display Check Transmission message. | GO to PINPOINT TEST A . | ||
| P0731 | SSA, SSB or internal parts | 1st gear failure. | Incorrect gear ratio while commanding 1st gear. | Incorrect gear selection depending on condition mode and manual lever position: see SOLENOID OPERATION CHART . Shift errors may also be due to other internal transaxle concerns (such as stuck valves, damaged friction material) (TCIL flashing, California only). | GO to PINPOINT TEST A . | ||
| P0732 | SSA, SSB or internal parts | 2nd gear failure. | Incorrect gear ratio while commanding 2nd gear. | Incorrect gear selection depending on condition mode and manual lever position: see SOLENOID OPERATION CHART . Shift errors may also be due to other internal transaxle concerns (such as stuck valves, damaged friction material) (TCIL flashing, California only). | GO to PINPOINT TEST A . | ||
| P0733 | SSA, SSC or internal parts | 3rd gear failure. | Incorrect gear ratio while commanding 3rd gear. | Incorrect gear selection depending on condition mode and manual lever position: see SOLENOID OPERATION CHART . Shift errors may also be due to other internal transaxle concerns (such as stuck valves, damaged friction material) (TCIL flashing, California only). | GO to PINPOINT TEST A . | ||
| P0734 | SSA, SSC, or internal parts | 4th gear failure. | Incorrect gear ratio while commanding 4th gear. | Incorrect gear selection depending on condition mode and manual lever position: see SOLENOID OPERATION CHART . Shift errors may also be due to other internal transaxle concerns (such as, stuck valves, damaged friction material) (TCIL flashing, California only). | GO to PINPOINT TEST A . | ||
| P1000 | OBD II system | OBD II Test not complete. | On-board tests have not completed. | - | See INTRODUCTION - GASOLINE . | ||
| P1460 | A/C | A/C clutch cycling pressure switch error. | A/C or Defrost ON condition may result from A/C clutch being ON during on-board diagnostics. | Failed ON - EPC pressure slightly low with A/C OFF. Failed OFF - EPC pressure slightly low with A/C ON. | See INTRODUCTION - GASOLINE . | ||
| P1703 | BPP | Brake not actuated during on-board diagnostics. BPP switch circuit failed. | Brake not cycled during KOER. Brake ON/OFF circuit failure. | Failed ON or not connected - torque converter clutch will not engage at less than 1/3 throttle. Failed OFF - torque converter clutch will not disengage when brake is applied. | See INTRODUCTION - GASOLINE . | ||
| P0705 | Digital TR sensor | Digital TR sensor circuit failure. | Digital TR sensor circuits, indicating an invalid pattern in TR_D. Condition caused by a short to ground or an open in TR4, TR3A, TR2 and/or TR1 circuits. This DTC cannot be set by an incorrectly adjusted digital TR sensor. | Increase in EPC pressure (harsh shifts). Defaults to (D) or D for all gear positions. In (D) position transmission is stuck in D or manual 2. | GO to PINPOINT TEST D . | ||
| P0708 | Digital TR sensor | Digital TR sensor circuit TR3A open. | Digital TR sensor circuit TR3A reading 2.6v - 5.0v (open circuit). This DTC cannot be set by an incorrectly adjusted digital TR sensor. | Increase in EPC pressure. Defaults to (D) or D for all gear ranges. | GO to PINPOINT TEST D . | ||
| P1702 | Digital TR sensor | Digital TR sensor signal intermittent, code P0705, P0708 are set. | See P0705, P0708 conditions. | See P0705, P0708 symptoms. | GO to PINPOINT TEST D . | ||
| P1705 | Digital TR sensor | Digital TR sensor not in PARK or NEUTRAL during KOEO/KOER. | KOEO/KOER not run in PARK or NEUTRAL; or digital TR sensor circuit failure. | Rerun KOEO/KOER in PARK or NEUTRAL. | GO to PINPOINT TEST D . | ||
| P1740 | TCC | TCC failure. | Mechanical failure of the solenoid detected. | Torque converter never applies. | GO to PINPOINT TEST C . | ||
| P1742a | TCC | TCC Solenoid Failed ON. | TCC Solenoid has failed ON by electrical, mechanical or hydraulic concern. | Harsh shifts, may stall vehicle at low speeds. May activate MIL. | GO to PINPOINT TEST C . | ||
| P1743a | TCC | TCC Solenoid Mechanically Failed ON. | TCC solenoid has mechanically failed ON. Either mechanical or hydraulic concern. | Harsh shifts, may stall vehicle at low speeds. May flash TCIL. | GO to PINPOINT TEST C . | ||
| P1744, P0741 | TCC | Excessive slip detected. | Excessive slip detected during full TCC engagement. | Torque converter disengaged. EPC pressure at minimum. May activate MIL. | GO to PINPOINT TEST C . | ||
| P0743(1) | TCC | TCC solenoid circuit failure during on-board diagnostic. | TCC solenoid circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM drive failure during on-board diagnostic. | Failed ON - engine runs rough/vehicle shudder, engine stalls in DRIVE (2nd, 3rd or 4th) at low idle speeds. (Short circuit). Failed OFF - converter never engages (Open circuit) (MIL on). | GO to PINPOINT TEST C . | ||
| P0740 | TCC | TCC solenoid circuit failure during on-board diagnostic. Intermittent circuit failure. | TCC solenoid circuit fails to provide voltage drop across solenoid. Circuit open or shorted or PCM drive failure during on-board diagnostic. | Failed ON - engine runs rough/vehicle shudder, engine stalls in DRIVE (2nd, 3rd or 4th) at low idle speeds. (Short circuit). Failed OFF - converter never engages (Open circuit) (MIL on). | GO to PINPOINT TEST C . | ||
| P1747(1) | EPC | EPC solenoid circuit failure, shorted circuit or output driver. | Voltage through EPC solenoid is checked and compared to a voltage through solenoid after a time delay. An error will be noted if tolerance is exceeded. KOEO and continuous on-board diagnostics. | Short Circuit - Causes failsafe EPC pressure (maximum capacity). Harsh engagements and shifts (MIL on). | GO to PINPOINT TEST E . | ||
| P0960 | PCS | PCS open circuit failure. | Voltage through EPC solenoid is checked and compared to a voltage through solenoid after a time delay. An error will be noted if tolerance is exceeded. KOEO and continuous on-board diagnostics. | Open Circuit - Causes maximum EPC pressure, harsh engagements and shifts (TCIL flashing). | GO to PINPOINT TEST E . | ||
| P0962 | PCS | PCS circuit shorted to ground. | Voltage through EPC solenoid is checked and compared to a voltage through solenoid after a time delay. An error will be noted if tolerance is exceeded. KOEO and continuous on-board diagnostic. | The PCM removes VPWR to the PCS which opens the circuit and provides maximum pressure. | GO to PINPOINT TEST E . | ||
| P0963 | PCS | PCS circuit shorted to VPWR. | Voltage through EPC solenoid is checked and compared to a voltage through solenoid after a time delay. An error will be noted if tolerance is exceeded. KOEO and continuous on-board diagnostic. | The PCM removes VPWR to the PCS which opens the circuit and provides maximum pressure. | GO to PINPOINT TEST E . | ||
| P1117 | ECT | ECT sensor or circuit signal intermittent. | PCM has detected an intermittent signal. | Incorrect EPC pressure, either high or low which will result in harsh or soft shift. | See INTRODUCTION - GASOLINE . | ||
| P1700 | LOW OWC | Transaxle mechanical failure. | Failure of the LOW OWC. NOTE: P1700 may be set by a low fluid level. | No 1st, 2nd and/or reverse gears, code P0731, P0732 also. | Refer to DIAGNOSIS BY SYMPTOM . | ||
| P1112 | IAT | IAT sensor or circuit signal intermittent. | PCM has detected an intermittent signal. | Incorrect EPC pressure, either high or low which will result in harsh or soft shift. | See INTRODUCTION - GASOLINE . | ||
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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.