I pulled a code on the weekend P1500 and I noticed SL-i did not have a OBDII code breakdown. So here it is.
Subaru OBD2 Codes
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P0031 *Front oxygen (A/F) sensor heater circuit low input
P0032 *Front oxygen (A/F) sensor heater circuit high input
P0037 *Rear oxygen sensor heater circuit malfunction
P0038 *Rear oxygen sensor heater circuit high input
P0065 *Air assist injector solenoid valve malfunction
P0066 *Air assist injector solenoid valve circuit low input
P0067 *Air assist injector solenoid valve circuit high input
P0100 *Mass Air Flow Sensor Circuit Malfunction
P0101 *Mass Air Flow Sensor Circuit Range Problem
P0102 *Mass Air Flow Sensor Circuit Low Input
PO103 *Mass Air Flow Sensor Circuit High Input
P0105 *Pressure Sensor Circuit Malfunction
P0106 *Pressure Sensor Circuit Range Problem
PO107 *Pressure Sensor Circuit Low Input
PO108 *Pressure Sensor Circuit High Input
P0111 *Intake air temperature sensor circuit range/performance problem
P0112 *Intake air temperature sensor circuit low input
P0113 *Intake air temperature sensor circuit high input
P0115 *Engine Coolant Temperature Sensor Circuit
P0116 *Engine Coolant Temp Sensor Circuit Low Input
PO117 *Engine Coolant Temp Sensor Circuit Low Input
PO118 *Engine Coolant Temp Sensor Circuit High Input
P0120 *Throttle Position Sensor Circuit Malfunction
P0121 *Throttle Position Sensor Circuit Range Problem
PO122 *Throttle Position Sensor Circuit Range Problem
PO123 *Throttle Position Sensor Circuit High Input
P0125 *Insufficient Coolant Temperature for Closed Loop
P0128 *Thermostat malfunction
P0130 *Front Oxygen Sensor Circuit Malfunction
P0131 *Front oxygen (A/F) sensor circuit range/performance problem (low input)
P0132 *Front oxygen (A/F) sensor circuit range/performance problem (high input)
P0133 *Front Oxygen Sensor Circuit Slow Response
P0135 *Front Oxygen Sensor Heater Circuit Malfunction
P0136 *Rear Oxygen Sensor Circuit Malfunction
P0139 *Rear Oxygen Sensor Circuit Slow Response
P0141 *Rear Oxygen Sensor Heater Circuit Malfunction
P0170 *Fuel Trim Malfunction
P0171 *Fuel trim malfunction (A/F too lean)
P0172 *Fuel trim malfunction (A/F too rich)
PO181 *Fuel Temperature Sensor A Range Problem
PO182 *Fuel Temperature Sensor A Circuit Low Input
PO183 *Fuel Temperature Sensor A Circuit High Input
P0201 *Fuel Injector Circuit Malfunction - #1
P0202 *Fuel Injector Circuit Malfunction - #2
P0203 *Fuel Injector Circuit Malfunction - #3
P0204 *Fuel Injector Circuit Malfunction - #4
P0244 *Wastegate control solenoid valve malfunction (high input)
P0245 *Wastegate control solenoid valve circuit low input
P0246 *Wastegate control solenoid valve circuit high input
PO261 *Fuel Injector Circuit Low Input - #1
PO262 *Fuel Injector Circuit High Input - #1
PO264 *Fuel Injector Circuit Low Input - #2
PO265 *Fuel Injector Circuit High Input - #2
PO267 *Fuel Injector Circuit Low Input - #3
PO268 *Fuel Injector Circuit High Input - #3
PO270 *Fuel Injector Circuit Low Input - #4
PO271 *Fuel Injector Circuit High Input - #4
P0301 *Cylinder 1 Misfire Detected
P0302 *Cylinder 2 Misfire Detected
P0303 *Cylinder 3 Misfire Detected
P0304 *Cylinder 4 Misfire Detected
P0325 *Knock Sensor Circuit Malfunction
P0327 *Knock sensor circuit low input
P0328 *Knock sensor circuit high input
P0335 *Crankshaft Position Sensor Circuit Malfunction
PO336 *Crankshaft Position Sensor Circuit Range Problem
P0340 *Camshaft Position Sensor Circuit Malfunction
PO341 *Camshaft Position Sensor Circuit Range Problem
P0400 *Exhaust Gas Recirculation Flow Malfunction
P0403 *Exhaust Gas Recirculation Circuit Malfunction
PO420 *Catalyst System Efficiency Below Threshold
PO440 *Evaporative Emission Control System Malfunction
P0441 *Evap System Incorrect Purge Flow
P0442 *Evaporative emission control system malfunction
P0443 *Evap System Purge Control Valve Circuit
PO443 *EVAP System Purge Control Valve Circuit Low Input
P0444 *Evaporative emission control system purge control valve circuit low input
P0445 *Evaporative emission control system purge control valve circuit high input
PO446 *EVAP System Vent Control Low Input
P0447 *Evaporative emission control system vent control low input
P0448 *Evaporative emission control system vent control high input
PO451 *EVAP Pressure Sensor Range Problem
PO452 *EVAP Pressure Sensor Low Input
PO453 *EVAP Pressure Sensor High Input
P0456 *Evaporative emission control system malfunction
PO461 *Fuel Level Sensor Circuit Range/Performance Problem
PO462 *Fuel Level Sensor Circuit Low Input
PO463 *Fuel Level Sensor Circuit High Input
P0464 *Fuel level sensor intermittent input
P0480 *Cooling Fan Relay 1 Circuit Low Input
P0483 *Cooling Fan Function Problem
P0500 *Vehicle Speed Sensor Malfunction
P0505 *Idle Control System Malfunction
P0506 *Idle Control System RPM Lower Than Expected
P0507 *Idle Control System RPM Higher Than Expected
P0509 *Idle control system circuit high input
P0512 *Starter switch circuit high input
P0545 *Exhaust gas temperature sensor circuit low input
P0546 *Exhaust gas temperature sensor circuit high input
P0600 *Serial Communication Link Malfunction
P0601 *Internal Control Module Memory Checksum Error
P0604 *Internal control module memory check sum error
P0703 *Brake Switch Input Malfunction
P0705 *Transmission Range Sensor Circuit Malfunction
P0710 *Transmission Fluid Temperature Sensor Circuit
P0715 *Torque Converter Turbine Speed Sensor Circuit Malfunction
P0720 *Output Speed Sensor Circuit Malfunction
P0725 *Engine Speed Input Circuit Malfunction
P0731 *Gear 1 Incorrect Ratio
P0732 *Gear 2 Incorrect Ratio
P0733 *Gear 3 Incorrect Ratio
P0734 *Gear 4 Incorrect Ratio
P0740 *Torque Converter Clutch System Malfunction
P0741 *Torque converter clutch system malfunction
P0743 *Torque Converter Clutch System Electrical
P0748 *Pressure Control Solenoid Electrical
P0753 *Shift Solenoid A Electrical
P0758 Shift Solenoid B Electrical
P0760 *Shift Solenoid C Malfunction
P0763 *Shift Solenoid C Electrical
P0778 *2-4 brake pressure control solenoid valve (2-4 brake duty solenoid) circuit malfunction
P0785 *2-4 brake timing control solenoid valve (2-4 brake timing solenoid) circuit malfunction
P1086 *Tumble generator valve #2 (LH) position sensor circuit low input
P1087 *Tumble generator valve #2 (LH) position sensor circuit high input
P1088 *Tumble generator valve #1 (RH) position sensor circuit low input
P1089 *Tumble generator valve #1 (RH) position sensor circuit high input
P1090 *Tumble generator valve #1 (RH) malfunction (stuck open)
P1091 *Tumble generator valve #1 (RH) malfunction (stuck close)
P1092 *Tumble generator valve #2 (LH) malfunction (stuck open)
P1093 *Tumble generator valve #2 (LH) malfunction (stuck close)
P1094 *Tumble generator valve circuit #1 (open circuit)
P1095 *Tumble generator valve circuit #1 (over current)
P1096 *Tumble generator valve circuit #2 (open circuit)
P1097 *Tumble generator valve circuit #2 (over current)
P1100 *Starter Switch Circuit Malfunction
P1101 *Neutral Position Switch Circuit High Input (A/T)
P1101 *Neutral Position Switch Circuit Malfunction (M/T)
P1102 *Pressure Sources Solenoid Valve Circuit Malfunction
P1103 *Pressure Sources Switching Solenoid Valve Circuit
P1104 *Engine Torque Control Signal Circuit Malfunction
P1106 *Engine Torque Control Signal 2 Circuit Malfunction
P1110 *Atmospheric pressure sensor low input
P1111 *Atmospheric pressure sensor high input
P1112 *Atmospheric pressure sensor range/performance problem
P1115 *Engine Torque Control Cut Signal Circuit High Input
P1116 Engine Torque Control Cut Signal Circuit Low Input
P1120 *Starter Switch High Input
P1121 *Neutral Position Switch Circuit High Input [MT Vehicles]
P1121 *Neutral Position Switch Circuit Low Input [AT Vehicles]
P1122 *Pressure Sources Switching Valve Circuit High Input
P1124 *TCS Signal Circuit High Input
P1130 *Front oxygen sensor circuit malfunction (open circuit)
P1131 *Front oxygen sensor circuit malfunction (short circuit)
P1134 *Front oxygen (A/F) sensor microcomputer problem
P1137 *Front oxygen (A/F) sensor circuit range/performance problem
P1139 *Front oxygen (A/F) sensor #1 heater circuit performance/range problem
P1141 *Mass Air Flow Sensor Circuit High Input
P1142 *Mass Air Flow Sensor Circuit Low Input
P1143 *Pressure Sensor Circuit Low Input
P1144 *Pressure Sensor Circuit High Input
P1146 *Pressure sensor circuit range/performance problem (high input)
P1150 *Front Oxygen Sensor Heater Circuit High Input
P1151 *Rear Oxygen Sensor Heater Circuit High Input
P1230 *Fuel pump control unit malfunction
P1244 *Wastegate control solenoid valve malfunction (low input)
P1245 *Wastegate control solenoid valve malfunction (fail-safe)
P1301 *Fire due to increased exhaust temperature
P1312 *Exhaust temperature sensor malfunction
P1325 *Knock Sensor Circuit Low Input
P1400 *Fuel Tank Pressure Control Solenoid Low Input
P1420 *Fuel Tank Pressure Control Solenoid High Input
P1421 *Exhaust Gas Recirculation Circuit High Input
P1422 *EVAP Purge Control Valve Circuit High Input
P1423 *EVAP Vent Control High Input
P1440 *Fuel Tank Pressure Control System Low Input
P1441 *Fuel Tank Pressure Control System High Input
P1442 *Fuel Level Sensor Circuit Range/Perf
P1443 *EVAP Control System Vent Control Function Problem
P1480 *Cooling fan relay 1 circuit high input
P1500 *Radiator Fan Relay 1 Circuit Malfunction
P1501 *Idle Control System Malfunction (Fail Safe)
P1502 *Radiator Fan Function Problem
P1507 *Idle Control System Malfunction (Fail Safe)
P1510 *Idle Air Control Solenoid Signal 1 Circuit Low Input
P1511 *Idle Air Control Solenoid Signal 1 Circuit High Input
P1512 *Idle Air Control Solenoid Signal 2 Circuit Low Input
P1513 *Idle Air Control Solenoid Signal 2 Circuit High Input
P1514 *Idle Air Control Solenoid Signal 3 Circuit Low Input
P1515 *Idle Air Control Solenoid Signal 3 Circuit High Input
P1516 *Idle Air Control Solenoid Signal 4 Circuit Low Input
P1517 *Idle Air Control Solenoid Signal 4 Circuit High Input
P1518 *Starter switch circuit low input
P1520 *Radiator Fan Relay 1 Circuit High Input
P1540 *Vehicle Speed Sensor Malfunction 2
P1544 *High exhaust temperature detected
P1560 *Back-Up Voltage Circuit Malfunction
P1590 *Neutral position switch circuit high input
P1591 *Neutral position switch circuit low input
P1592 *Neutral position switch circuit (MT model)
P1594 *Automatic transmission diagnosis input signal circuit malfunction
P1595 *Automatic transmission diagnosis input signal circuit low input
P1596 *Automatic transmission diagnosis input signal circuit high input
P1698 *Engine torque control cut signal circuit low input
P1699 *Engine torque control cut signal circuit high input
P1700 *Throttle Position Sensor Circuit Malfunction (A/T)
P1701 *Cruise Control Set Signal Circuit Malfunction (A/T)
P1702 *Auto Trans Diagnosis Input Signal Circuit
P1703 *Low clutch timing control solenoid valve circuit malfunction
P1704 *2-4 Brake Timing Solenoid Valve Circuit Malfunction
P1705 *2-4 Brake Pressure Solenoid Valve (Solenoid D) Circuit
P1711 *Engine torque control signal 1 circuit malfunction
P1712 *Engine torque control signal 2 circuit malfunction
P1722 *Auto Trans Diagnosis Input Signal High Input
P1742 *Auto Trans Diagnosis Input Signal Malfunction
- Chuck