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.
2012 Subaru Outback Base, Standard TransFACTORY OEM SERVICE PROCEDURE
Automatic Transmission DTCS: 5AT
AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODES (DTC) LIST - 5AT
| DTC | Description | Reference |
|---|---|---|
| P0705 | Inhibitor switch malfunction, open or short circuit | Refer to , DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT (PRNDL INPUT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0712 | ATF temperature sensor 1 is faulty or input signal circuit is open. | Refer to , DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT LOW INPUT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0713 | ATF temperature sensor 1 is faulty or input signal circuit is shorted. | Refer to , DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0715 | Turbine speed sensor 1 malfunction, open or shorted input signal circuit | Refer to , DTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0719 | Brake switch malfunction, open input signal circuit, body integrated unit malfunction, or CAN communication error | Refer to , DTC P0719 BRAKE SWITCH CIRCUIT LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0720 | Front vehicle speed sensor malfunction, open or shorted input signal circuit, ground, power supply | Refer to , DTC P0720 OUTPUT SPEED SENSOR CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0724 | Brake switch malfunction, shorted input signal circuit, body integrated unit malfunction, or CAN communication error | Refer to , DTC P0724 BRAKE SWITCH CIRCUIT HIGH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0731 | Vehicle speed sensor, turbine speed sensor, control valve, or gear shift clutch malfunction | Refer to , DTC P0731 GEAR 1 INCORRECT RATIO , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0732 | Vehicle speed sensor, turbine speed sensor, control valve, or gear shift clutch malfunction | Refer to , DTC P0732 GEAR 2 INCORRECT RATIO , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0733 | Vehicle speed sensor, turbine speed sensor or gear shift clutch malfunction | Refer to , DTC P0733 GEAR 3 INCORRECT RATIO , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0734 | Vehicle speed sensor, turbine speed sensor or gear shift clutch malfunction | Refer to , DTC P0734 GEAR 4 INCORRECT RATIO , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0735 | Vehicle speed sensor, turbine speed sensor or gear shift clutch malfunction | Refer to , DTC P0735 GEAR 5 INCORRECT RATIO , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0736 | Vehicle speed sensor, turbine speed sensor or gear shift clutch malfunction | Refer to , DTC P0736 REVERSE INCORRECT RATIO , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0741 | Lock-up clutch is faulty or valve is stuck. | Refer to , DTC P0741 TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR STUCK OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0743 | L/U solenoid circuit or L/U solenoid unit malfunction | Refer to , DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT ELECTRICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0748 | Line pressure solenoid circuit or line pressure solenoid unit malfunction | Refer to , DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0751 | Fr/B solenoid malfunction | Refer to , DTC P0751 SHIFT SOLENOID "A" PERFORMANCE OR STUCK OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0753 | Fr/B solenoid circuit or Fr/B solenoid unit malfunction | Refer to , DTC P0753 SHIFT SOLENOID "A" ELECTRICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0756 | I/C solenoid malfunction | Refer to , DTC P0756 SHIFT SOLENOID "B" PERFORMANCE OR STUCK OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0758 | I/C solenoid circuit or I/C solenoid unit malfunction | Refer to , DTC P0758 SHIFT SOLENOID "B" ELECTRICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0761 | H & LR/C solenoid malfunction | Refer to , DTC P0761 SHIFT SOLENOID "C" PERFORMANCE OR STUCK OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0763 | H & LR/C solenoid circuit or H & LR/C solenoid unit malfunction | Refer to , DTC P0763 SHIFT SOLENOID "C" ELECTRICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0766 | D/C solenoid malfunction | Refer to , DTC P0766 SHIFT SOLENOID "D" PERFORMANCE OR STUCK OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0768 | D/C solenoid circuit or D/C solenoid unit malfunction | Refer to , DTC P0768 SHIFT SOLENOID "D" ELECTRICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0771 | Fwd/B solenoid malfunction | Refer to , DTC P0771 SHIFT SOLENOID "E" PERFORMANCE OR STUCK OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0773 | Fwd/B solenoid circuit or Fwd/B solenoid unit malfunction | Refer to , DTC P0773 SHIFT SOLENOID "E" ELECTRICAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0801 | Shift lock solenoid is faulty or output signal circuit is open or shorted. | Refer to , DTC P0801 REVERSE INHIBIT CONTROL CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0817 |
|
Refer to , DTC P0817 STARTER DISABLE CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0957 | Open or shorted back-up light relay output circuit or relay OFF malfunction | Refer to , DTC P0957 BACKUP LIGHT RELAY CIRCUIT LOW , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P0958 | Shorted back-up light relay output circuit or relay ON malfunction | Refer to , DTC P0958 BACKUP LIGHT RELAY CIRCUIT HIGH , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1706 | Rear vehicle speed sensor malfunction, open or shorted input circuit, ground, power supply | Refer to , DTC P1706 AT VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION (REAR WHEEL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1707 | AWD solenoid circuit or AWD solenoid unit malfunction | Refer to , DTC P1707 AT AWD SOLENOID VALVE CIRCUIT MALFUNCTION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1710 | Turbine speed sensor 2 malfunction, open or shorted input circuit, ground, power supply | Refer to , DTC P1710 TORQUE CONVERTER TURBINE 2 SPEED SIGNAL CIRCUIT MALFUNCTION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1718 | Open CAN communication bus off, shorted ECM, ABS/VDCCM, body integrated unit malfunction | Refer to , DTC P1718 AT CAN COMMUNICATION CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1724 | TCM EEPROM malfunction | Refer to , DTC P1724 AT EEPROM ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1817 | Open or shorted manual mode switch or switch malfunction | Refer to , DTC P1817 SPORTS MODE SWITCH CIRCUIT (MANUAL SWITCH) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1840 | Open or shorted Fr/B fluid pressure switch or switch malfunction | Refer to , DTC P1840 TRANSMISSION FLUID PRESSURE SENSOR SWITCH A CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1841 | Open or shorted Fwd/B fluid pressure switch or switch malfunction | Refer to , DTC P1841 TRANSMISSION FLUID PRESSURE SENSOR SWITCH B CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1842 | Open or shorted I/O fluid pressure switch or switch malfunction | Refer to , DTC P1842 TRANSMISSION FLUID PRESSURE SENSOR SWITCH C CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1843 | Open or shorted D/C fluid pressure switch or switch malfunction | Refer to , DTC P1843 TRANSMISSION FLUID PRESSURE SENSOR SWITCH D CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| P1844 | Open or shorted H & LR/C fluid pressure switch or switch malfunction | Refer to , DTC P1844 TRANSMISSION FLUID PRESSURE SENSOR SWITCH E CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
Factory Service Tools
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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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