How to read diagnostic codes

I have a 2000 Impreza Outback Sport. I don't have all the service manuals because there were too many and too expensive! My check engine
light just went on. Can the code be read without a reader like some other cars? And, if so, is there a web site I can go to to get the description of the trouble code?
Thanks. Rich
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AutoZone will read them, but often times the code will be unique to that manufacture so you need to find out what that Subaru code means.

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Here is the DTC trouble code portion of the manual for the 2004 Impreza. I have no idea how much may be different from 2000 model year. It was a PDF file and since this newsgroup will not allow binaries (I don't think) I'll try to just paste in the text. It will loose its formatting, but the info is there. I also have the much larger section which details troubleshooting steps for each code if you determine which code it is.
_______________________________________________________
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
EN(H4SO)-72 ENGINE (DIAGNOSTICS) LIST OF DIAGNOSTIC TROUBLE CODE (DTC) 18.List of Diagnostic Trouble Code (DTC) A: LIST DTC Item Index
P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1) <Ref. to EN(H4SO)-79,
DTC P0030 - HO2S HEATER CONTROL CIRCUIT (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1) <Ref. to EN(H4SO)-81,
DTC P0031 - HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1) <Ref. to EN(H4SO)-84,
DTC P0032 - HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2) <Ref. to EN(H4SO)-86,
DTC P0037 - HO2S HEATER CONTROL CIRCUIT LOW (BANK 1 SENSOR 2) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2) <Ref. to EN(H4SO)-89,
DTC P0038 - HO2S HEATER CONTROL CIRCUIT HIGH (BANK 1 SENSOR 2) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0065 Air Assisted Injector Control Range/ Performance <Ref. to EN(H4SO)-91,
DTC P0065 - AIR ASSISTED INJECTOR CONTROL RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0066 Air Assisted Injector Control Circuit or Circuit Low <Ref. to EN(H4SO)-93,
DTC P0066 - AIR ASSISTED INJECTOR CONTROL CIRCUIT OR CIRCUIT LOW -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0067 Air Assisted Injector Control Circuit High <Ref. to EN(H4SO)-95,
DTC P0067 - AIR ASSISTED INJECTOR CONTROL CIRCUIT HIGH -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0068 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem <Ref. to EN(H4SO)-97,
DTC P0068 - MANIFOLD ABSOLUTE PRESSURE/ BAROMETRIC PRESSURE CIRCUIT RANGE/PERFORMANCE PROBLEM -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input <Ref. to EN(H4SO)-99,
DTC P0107 - MANIFOLD ABSOLUTE PRESSURE/ BAROMETRIC PRESSURE CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input <Ref. to EN(H4SO)-102,
DTC P0108 - MANIFOLD ABSOLUTE PRESSURE/ BAROMETRIC PRESSURE CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0111 Intake Air Temperature Circuit Range/Performance <Ref. to EN(H4SO)-105,
DTC P0111 - INTAKE AIR TEMPERATURE CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0112 Intake Air Temperature Circuit Low Input <Ref. to EN(H4SO)-107, DTC P0112 - INTAKE AIR TEMPERATURE CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0113 Intake Air Temperature Circuit High Input <Ref. to EN(H4SO)-109,
DTC P0113 - INTAKE AIR TEMPERATURE CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0117 Engine Coolant Temperature Circuit Low Input <Ref. to EN(H4SO)-112,
DTC P0117 - ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0118 Engine Coolant Temperature Circuit High Input <Ref. to EN(H4SO)-114,
DTC P0118 - ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0121 Throttle/Pedal Position Sensor/ Switch "A" Circuit Range/Performance <Ref. to EN(H4SO)-117,
DTC P0121 - THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0122 Throttle/Pedal Position Sensor/ Switch "A" Circuit Low Input <Ref. to EN(H4SO)-119,
DTC P0122 - THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0123 Throttle/Pedal Position Sensor/ Switch "A" Circuit High Input <Ref. to EN(H4SO)-122,
DTC P0123 - THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control <Ref. to EN(H4SO)-124,
DTC P0125 - INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) <Ref. to EN(H4SO)-126,
DTC P0128 - COOLANT THERMOSTAT (COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0129 Atmospheric Pressure Sensor Circuit Range/Performance <Ref. to EN(H4SO)-127, DTC P0129 - ATMOSPHERIC PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0130 O2 Sensor Circuit (Bank 1 Sensor 1) <Ref. to EN(H4SO)-128, DTC P0130 - O2 SENSOR CIRCUIT (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1) <Ref. to EN(H4SO)-131,
DTC P0131 - O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1) <Ref. to EN(H4SO)-133,
DTC P0132 - O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) <Ref. to EN(H4SO)-135,
DTC P0133 - O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) <Ref. to EN(H4SO)-137,
DTC P0134 - O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) <Ref. to EN(H4SO)-139,
DTC P0137 - O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 2) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2) <Ref. to EN(H4SO)-142,
DTC P0138 - O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 2) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2) <Ref. to EN(H4SO)-145,
DTC P0139 - O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 2) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
DTC P0171 - SYSTEM TOO LEAN (BANK 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0172 System too Rich (Bank 1) <Ref. to EN(H4SO)-147,
DTC P0172 - SYSTEM TOO RICH (BANK 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0181 Fuel Temperature Sensor "A" Circuit Range/Performance <Ref. to EN(H4SO)-149,
DTC P0181 - FUEL TEMPERATURE SENSOR "A" CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0182 Fuel Temperature Sensor "A" Circuit Low Input <Ref. to EN(H4SO)-151,
DTC P0182 - FUEL TEMPERATURE SENSOR "A" CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0183 Fuel Temperature Sensor "A" Circuit High Input <Ref. to EN(H4SO)-153,
DTC P0183 - FUEL TEMPERATURE SENSOR "A" CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0301 Cylinder 1 Misfire Detected <Ref. to EN(H4SO)-155,
DTC P0301 - CYLINDER 1 MISFIRE DETECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0302 Cylinder 2 Misfire Detected <Ref. to EN(H4SO)-155, DTC P0302 - CYLINDER 2 MISFIRE DETECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0303 Cylinder 3 Misfire Detected <Ref. to EN(H4SO)-155, DTC P0303 - CYLINDER 3 MISFIRE DETECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0304 Cylinder 4 Misfire Detected <Ref. to EN(H4SO)-156, DTC P0304 - CYLINDER 4 MISFIRE DETECTED
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) <Ref. to EN(H4SO)-163,
DTC P0327 - KNOCK SENSOR 1 CIRCUIT LOW INPUT (BANK 1 OR SINGLE SENSOR) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) <Ref. to EN(H4SO)-165,
DTC P0328 - KNOCK SENSOR 1 CIRCUIT HIGH INPUT (BANK 1 OR SINGLE SENSOR) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0335 Crankshaft Position Sensor "A" Circuit <Ref. to EN(H4SO)-167,
DTC P0335 - CRANKSHAFT POSITION SENSOR "A" CIRCUIT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0336 Crankshaft Position Sensor "A" Circuit Range/Performance <Ref. to EN(H4SO)-169,
DTC P0336 - CRANKSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0340 Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) <Ref. to EN(H4SO)-171,
DTC P0340 - CAMSHAFT POSITION SENSOR "A" CIRCUIT (BANK 1 OR SINGLE SENSOR) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0341 Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 or Single Sensor) <Ref. to EN(H4SO)-173,
DTC P0341 - CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE (BANK 1 OR SINGLE SENSOR) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0420 Catalyst System Efficiency Below Threshold (Bank 1) <Ref. to EN(H4SO)-176,
DTC P0420 - CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0442 Evaporative Emission Control System Leak Detected (small leak) <Ref. to EN(H4SO)-178,
DTC P0442 - EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (SMALL LEAK) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0447 Evaporative Emission Control System Vent Control Circuit Open <Ref. to EN(H4SO)-182,
DTC P0447 - EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL CIRCUIT OPEN -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0448 Evaporative Emission Control System Vent Control Circuit Shorted <Ref. to EN(H4SO)-185,
DTC P0448 - EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL CIRCUIT SHORTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0451 Evaporative Emission Control System Pressure Sensor Range/Performance <Ref. to EN(H4SO)-187,
DTC P0451 - EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR RANGE/PERFORMANCE, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0452 Evaporative Emission Control System Pressure Sensor Low Input <Ref. to EN(H4SO)-189,
DTC P0452 - EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0453 Evaporative Emission Control System Pressure Sensor High Input <Ref. to EN(H4SO)-192,
DTC P0453 - EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0456 Evaporative Emission Control System Leak Detected (very small leak) <Ref. to EN(H4SO)-195,
DTC P0456 - EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (VERY SMALL LEAK) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0457 Evaporative Emission Control System Leak Detected (fuel cap loose/ off) <Ref. to EN(H4SO)-199,
DTC P0457 - EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (FUEL CAP LOOSE/OFF) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0458 Evaporative Emission Control System Purge Control Valve Circuit Low <Ref. to EN(H4SO)-203,
DTC P0458 - EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT LOW -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0459 Evaporative Emission Control System Purge Control Valve Circuit High <Ref. to EN(H4SO)-206,
DTC P0459 - EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0461 Fuel Level Sensor Circuit Range/ Performance <Ref. to EN(H4SO)-209,
DTC P0461 - FUEL LEVEL SENSOR CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0462 Fuel Level Sensor Circuit Low Input <Ref. to EN(H4SO)-211, DTC P0462 - FUEL LEVEL SENSOR CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0463 Fuel Level Sensor Circuit High Input <Ref. to EN(H4SO)-214, DTC P0463 - FUEL LEVEL SENSOR CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0464 Fuel Level Sensor Circuit Intermittent <Ref. to EN(H4SO)-217, DTC P0464 - FUEL LEVEL SENSOR CIRCUIT INTERMITTENT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0483 Cooling Fan Rationality Check <Ref. to EN(H4SO)-219,
DTC P0483 - COOLING FAN RATIONALITY CHECK -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0502 Vehicle Speed Sensor Circuit Low Input <Ref. to EN(H4SO)-221,
DTC P0502 - VEHICLE SPEED SENSOR CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0503 Vehicle Speed Sensor Intermittent/ Erratic/High <Ref. to EN(H4SO)-222,
DTC P0503 - VEHICLE SPEED SENSOR INTERMITTENT/ ERRATIC/HIGH -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0506 Idle Control System RPM Lower Than Expected <Ref. to EN(H4SO)-224,
DTC P0506 - IDLE CONTROL SYSTEM RPM LOWER THAN EXPECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0507 Idle Control System RPM Higher Than Expected <Ref. to EN(H4SO)-226,
DTC P0507 - IDLE CONTROL SYSTEM RPM HIGHER THAN EXPECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0512 Starter Request Circuit <Ref. to EN(H4SO)-228, DTC P0512 - STARTER REQUEST CIRCUIT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0519 Idle Control System Malfunction (Fail-Safe) <Ref. to EN(H4SO)-231, DTC P0519 - IDLE CONTROL SYSTEM MALFUNCTION (FAIL-SAFE) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0565 Cruise Control On Signal <Ref. to EN(H4SO)-233, DTC P0565 - CRUISE CONTROL ON SIGNAL - , Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0604 Internal Control Module Random Access Memory (RAM) Error <Ref. to EN(H4SO)-235, DTC P0604 - INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0691 Cooling Fan 1 Control Circuit Low <Ref. to EN(H4SO)-237, DTC P0691 - COOLING FAN 1 CONTROL CIRCUIT LOW -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0692 Cooling Fan 1 Control Circuit High <Ref. to EN(H4SO)-240, DTC P0692 - COOLING FAN 1 CONTROL CIRCUIT HIGH -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0703 Torque Converter/Brake Switch "B" Circuit <Ref. to EN(H4SO)-243, DTC P0703 - TORQUE CONVERTER/BRAKE SWITCH "B" CIRCUIT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0705 Transmission Range Sensor Circuit (PRNDL Input) <Ref. to EN(H4SO)-245, DTC P0705 - TRANSMISSION RANGE SENSOR CIRCUIT (PRNDL INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0710 Transmission Fluid Temperature Sensor Circuit <Ref. to EN(H4SO)-245, DTC P0710 - TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0716 Torque Converter Turbine Speed Sensor <Ref. to EN(H4SO)-245, DTC P0716 - OUTPUT/TURBINE SPEED SENSOR CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0720 Output Speed Sensor Circuit <Ref. to EN(H4SO)-245, DTC P0720 - OUTPUT SPEED SENSOR CIRCUIT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0726 Engine Speed Input Circuit Range/ Performance <Ref. to EN(H4SO)-245, DTC P0726 - ENGINE SPEED INPUT CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0731 Gear 1 Incorrect Ratio <Ref. to EN(H4SO)-245, DTC P0731 - GEAR 1 INCORRECT RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0732 Gear 2 Incorrect Ratio <Ref. to EN(H4SO)-245, DTC P0732 - GEAR 2 INCORRECT RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0733 Gear 3 Incorrect Ratio <Ref. to EN(H4SO)-245, DTC P0733 - GEAR 3 INCORRECT RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> DTC Item Index
P0734 Gear 4 Incorrect Ratio <Ref. to EN(H4SO)-246, DTC P0734 - GEAR 4 INCORRECT RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0741 Torque Converter Clutch Circuit Performance or Stuck Off <Ref. to EN(H4SO)-247, DTC P0741 - TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR STUCK OFF -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0743 Torque Converter Clutch Circuit Electrical <Ref. to EN(H4SO)-249, DTC P0743 - TORQUE CONVERTER CLUTCH CIRCUIT ELECTRICAL -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0748 Pressure Control Solenoid "A" Electrical <Ref. to EN(H4SO)-249, DTC P0748 - PRESSURE CONTROL SOLENOID "A" ELECTRICAL -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0753 Shift Solenoid "A" Electrical <Ref. to EN(H4SO)-249, DTC P0753 - SHIFT SOLENOID "A" ELECTRICAL -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0758 Shift Solenoid "B" Electrical <Ref. to EN(H4SO)-249, DTC P0758 - SHIFT SOLENOID "B" ELECTRICAL -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0771 Shift Solenoid "E" Performance or Stuck Off <Ref. to EN(H4SO)-249, DTC P0771 - SHIFT SOLENOID "E" PERFORMANCE OR STUCK OFF -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0778 Pressure Control Solenoid "B" Electrical <Ref. to EN(H4SO)-249, DTC P0778 - PRESSURE CONTROL SOLENOID "B" ELECTRICAL -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0785 Shift/Timing Solenoid <Ref. to EN(H4SO)-249, DTC P0785 - SHIFT/TIMING SOLENOID -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0851 Neutral Switch Input Circuit Low <Ref. to EN(H4SO)-250, DTC P0851 - NEUTRAL SWITCH INPUT CIRCUIT LOW -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to EN(H4SO)-252, DTC P0851 - NEUTRAL SWITCH INPUT CIRCUIT LOW (MT MODEL) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0852 Neutral Switch Input Circuit High <Ref. to EN(H4SO)-255, DTC P0852 - NEUTRAL SWITCH INPUT CIRCUIT HIGH (AT MODEL) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> <Ref. to EN(H4SO)-258, DTC P0852 - NEUTRAL SWITCH INPUT CIRCUIT HIGH (MT MODEL) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0864 TCM Communication Circuit Range/ Performance <Ref. to EN(H4SO)-261, DTC P0864 - TCM COMMUNICATION CIRCUIT RANGE/PERFORMANCE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0865 TCM Communication Circuit Low <Ref. to EN(H4SO)-263, DTC P0865 - TCM COMMUNICATION CIRCUIT LOW -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P0866 TCM Communication Circuit High <Ref. to EN(H4SO)-265, DTC P0866 - TCM COMMUNICATION CIRCUIT HIGH -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1110 Atmospheric Pressure Sensor Circuit Malfunction (Low Input) <Ref. to EN(H4SO)-267, DTC P1110 - ATMOSPHERIC PRESSURE SENSOR CIRCUIT MALFUNCTION (LOW INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1111 Atmospheric Pressure Sensor Circuit Malfunction (High Input) <Ref. to EN(H4SO)-267, DTC P1111 - ATMOSPHERIC PRESSURE SENSOR CIRCUIT MALFUNCTION (HIGH INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1134 A/F Sensor Micro-computer Problem <Ref. to EN(H4SO)-268, DTC P1134 - A/F SENSOR MICRO-COMPUTER PROBLEM -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1137 O2 Sensor Circuit (Lamda=1) (Bank1 Sensor1) <Ref. to EN(H4SO)-270, DTC P1137 - O2 SENSOR CIRCUIT (LAMDA=1) (BANK1 SENSOR1) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1400 Fuel Tank Pressure Control Solenoid Valve Circuit Low <Ref. to EN(H4SO)-273, DTC P1400 - FUEL TANK PRESSURE CONTROL SOLENOID VALVE CIRCUIT LOW -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1420 Fuel Tank Pressure Control Solenoid Valve Circuit High <Ref. to EN(H4SO)-276, DTC P1420 - FUEL TANK PRESSURE CONTROL SOLENOID VALVE CIRCUIT HIGH -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> DTC Item Index
EN(H4SO)-77 ENGINE (DIAGNOSTICS) LIST OF DIAGNOSTIC TROUBLE CODE (DTC) P1443 Vent Control Solenoid Valve Function Problem <Ref. to EN(H4SO)-278, DTC P1443 - VENT CONTROL SOLENOID VALVE FUNCTION PROBLEM -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1446 Fuel Tank Sensor Control Valve Circuit Low <Ref. to EN(H4SO)-280, DTC P1446 - FUEL TANK SENSOR CONTROL VALVE CIRCUIT LOW -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1447 Fuel Tank Sensor Control Valve Circuit High <Ref. to EN(H4SO)-283, DTC P1447 - FUEL TANK SENSOR CONTROL VALVE CIRCUIT HIGH -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1448 Fuel Tank Sensor Control Valve Range/Performance Problem <Ref. to EN(H4SO)-285, DTC P1448 - FUEL TANK SENSOR CONTROL VALVE RANGE/PERFORMANCE PROBLEM -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1510 ISC Solenoid Valve Signal #1 Circuit Malfunction (Low Input) <Ref. to EN(H4SO)-287, DTC P1510 - ISC SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1511 ISC Solenoid Valve Signal #1 Circuit Malfunction (High Input) <Ref. to EN(H4SO)-287, DTC P1511 - ISC SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1512 ISC Solenoid Valve Signal #2 Circuit Malfunction (Low Input) <Ref. to EN(H4SO)-287, DTC P1512 - ISC SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (LOW INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1513 ISC Solenoid Valve Signal #2 Circuit Malfunction (High Input) <Ref. to EN(H4SO)-287, DTC P1513 - ISC SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (HIGH INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1514 ISC Solenoid Valve Signal #3 Circuit Malfunction (Low Input) <Ref. to EN(H4SO)-287, DTC P1514 - ISC SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (LOW INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1515 ISC Solenoid Valve Signal #3 Circuit Malfunction (High Input) <Ref. to EN(H4SO)-287, DTC P1515 - ISC SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (HIGH INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1516 ISC Solenoid Valve Signal #4 Circuit Malfunction (Low Input) <Ref. to EN(H4SO)-288, DTC P1516 - ISC SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (LOW INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1517 ISC Solenoid Valve Signal #4 Circuit Malfunction (High Input) <Ref. to EN(H4SO)-290, DTC P1517 - ISC SOLENOID VALVE SIGNAL #4 CIRCUIT MALFUNCTION (HIGH INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1518 Starter Switch Circuit Low input <Ref. to EN(H4SO)-292, DTC P1518 - STARTER SWITCH CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1560 Back-up Voltage Circuit Malfunction <Ref. to EN(H4SO)-295, DTC P1560 - BACK-UP VOLTAGE CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1698 Engine Torque Control Cut Signal Circuit Low Input <Ref. to EN(H4SO)-297, DTC P1698 - ENGINE TORQUE CONTROL CUT SIGNAL CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1699 Engine Torque Control Cut Signal Circuit High Input <Ref. to EN(H4SO)-299, DTC P1699 - ENGINE TORQUE CONTROL CUT SIGNAL CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1700 Throttle Position Sensor <Ref. to 4AT-44, DTC 31 THROTTLE POSITION SENSOR, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1711 Engine Torque Control Signal 1 Circuit Malfunction <Ref. to EN(H4SO)-301, DTC P1711 - ENGINE TORQUE CONTROL SIGNAL 1 CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> P1712 Engine Torque Control Signal 2 Circuit Malfunction <Ref. to EN(H4SO)-303, DTC P1712 - ENGINE TORQUE CONTROL SIGNAL 2 CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> DTC Item Index
EN(H4SO)-78 ENGINE (DIAGNOSTICS) LIST OF DIAGNOSTIC TROUBLE CODE (DTC) *: DTC with* can be detected only on OBD mode. <Ref. to EN(H4SO)-37, Read Diagnostic Trouble Code (DTC).> *P2096 Post Catalyst Fuel Trim System Too Lean Bank 1 <Ref. to EN(H4SO)-305, DTC P2096 - POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1 -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> *P2097 Post Catalyst Fuel Trim System Too Rich Bank 1 <Ref. to EN(H4SO)-309, DTC P2097 - POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1 -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).> DTC Item Index

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Thanks for the list of codes. My question is how to get the codes. I have a Honda and Nissan where I can get the codes directly from a light on the computer or count the flashes on the "check engine" light after following a specific series of steps..I don't have the Subaru manual to give me this info.
Thanks, Rich
Craig wrote:

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Try autozone, they would read the code for free.
Sam

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