trouble shooting codes for on board diagnosis

[Leone_TT]

trouble shooting codes for on board diagnosis


these are the trouble codes item and diagnosis from a 1993 impreza manual as far as i know and have tested they are still current and accurate as they can be translated to correspond with a 2002 outback and give true readings.


11 Crankshaft Position Sensor
1) no signal entered from crankshaft position sensor when starter switch is on. 2) the harness connector between ECM and crankshaft position sensor is in short or open

12 Starter Switch
1)the starter switch signal is abnormal
2)the harness connector between ECM and starter switch is in short or open

13 Camshaft Positon Sensor
1)No signal entered from camshaft position sensor, but signal entered from crankshaft position sensor.
2)the harness connector between ECM and camshaft position sensor is in short or open

21 Engine Coolant Temp Sensor
1)The engine coolant temp sensor signal is abnormal
2)the harness connector between ECM and engine coolant temp sensor is in short or open

22 Knock Sensor
1)the knock sensor signal is abnormal
2)the harness connector between ECM and knock sensor is in short or open

23 Mass Air Flow Sensor
1)the mass airflow sensor signal is abnormal
2)the harness connector between ECM and max air flow sensor is in short or open

24 Idle Air Control Solenoid Valve
1)the idle air control solenoid valve is not in function
2)the harness connector between ECM and idle air control solenoid valve is in short or open

31 Throttle Position Sensor
1)the throttle position sensor signal is abnormal
2)the throttle position sensor is installed abnormally
3)the harness connector between ECM and throttle position sensor is in short or open

32 Oxygen Sensor
1)the oxygen sensor is not in function
2)the harness connector between ECM and oxygen sensor is in short or open

33 Vehicle Speed Sensor 2
1)the vehicle speed sensor 2 is not in functon
2)the harness connector between ECM and vehicle speed sensor 2 is in short or open

35 Purge Control Solenoid Valve
1)the purge control solenoid valve is not in function
2)the harness connector between ECM and purge control solenoid valve is in short or open

42 Idle Switch
1)the idle switch signal is abnormal
2)the throttle position sensor is installed abnormally
3)the harness connector between ECM and idle switch is in short or open

44 Wastegate control solenoid valve
1)the waste gate control solenoid valve is not in function
2)the harness connector between ECM and wastegate control solenoid valve is in short or open

45 Pressure Sensor or Pressure exchange solenoid valve
1) the pressure sensor signal is abnormal
2)the pressure exchange solenoid valve is not in function
3)the intake manifold pressure is not transmitted to the pressure sensor
4)the harness connector between ECM and pressure sensor, pressure exchange solenoid valve is in short or open

51 Neautral Position Switch
1) the neautral position switch signal is abnormal
2)the harness connector between ECM and the neautral position switch is in short or open