Engine Self Test: 1996-97 2.5L V-6 Engine

[1stgenWizard]

Overview
1996 and 1997 Probes were equipped with an On Board Diagnostic (OBD) series 2 system to detect malfunctions in sensors and notified the driver through the Check Engine light on the instrument panel.

The 'Check Engine' light or MIL (Malfunction Indicator Light) light on the instrument cluster illuminates when the ignition is turned to the 'On' position. It will go off a second or two after the engine is started. If the light stays illuminated after the engine is started or illuminates while driving, there may be a problem with the engine. Checking for error codes is an easy way to find out what's wrong and what, if anything, caused the 'Check Engine' light to illuminate. Unlike previous models, there's only one way to retrieve the codes from the computer... an OBD-II compatible scanner. Simply connect it according to the manufacturer's instructions and write down the codes that appear.

Clearing the Codes
Clearing the PCM of codes can only be achieved by either using the Clear function on an OBD-II scanner, or by disconnecting the negative terminal on the engine battery for a couple of minutes.

• Engine Self Test: Codes  
  Code Sensor or System
  P0100 Mass Airflow sensor or circuit fault
  P0110 Inlet Air Temperature sensor or circuit fault
  P0115 Engine Coolant Temperature sensor or circuit fault
  P0120 Throttle Position Sensor or circuit fault
  P0125 Excessive time to enter closed loop
  P0130 Heated O2 sensor or circuit fault
  P0134 Heated O2 sensor slow response
  P0135 Heated O2 sensor heater or circuit fault
  P0140 Heated O2 sensor slow response
  P0150 Heated O2 sensor or circuit fault
  P0154 Heated O2 sensor slow response
  P0155 Heated O2 sensor heater or circuit fault
  P0160 Heated O2 sensor slow response
  P0170 System fuel too lean
  P0173 System fuel too rich
  P0300 Random misfire detected
  P0301 Cylinder number 1 misfire detected
  P0302 Cylinder number 2 misfire detected
  P0303 Cylinder number 3 misfire detected
  P0304 Cylinder number 4 misfire detected
  P0305 Cylinder number 5 misfire detected
  P0306 Cylinder number 6 misfire detected
  P0325 Knock Sensor circuit malfunction
  P0335 Crankshaft Position sensor or circuit fault
  P0340 Camshaft Position sensor or circuit fault
  P0400 EGR flow fault
  P0420 Catalyst system efficiency below threshold
  P0430 Catalyst system efficiency below threshold
  P0440 EVAP sytem fault
  P0443 EVAP purge solenoid or circuit fault
  P0500 Vehicle Speed Sensor or circuit fault
  P0503 Vehicle Speed Sensor or circuit fault
  P0505 Idle Air Control valve system fault
  P0510 Idle switch fault
  P0552 Power Steering Pressure switch or circuit fault
  P0553 Power Steering Pressure switch or circuit fault
  P0603 ECM Keep Alive Memory test error
  P0605 ECM Read Only Memory test error
  P0703 Brake On/Off switch or circuit fault
  P0704 Clutch pedal position switch or circuit fault
  P0705 Transmission range sensor or circuit fault
  P0710 Transmission fluid temperature sensor circuit malfunction
  P0715 Turbine Speed Sensor circuit malfunction
  P0731 Incorrect Gear 1 Ratio
  P0732 Incorrect Gear 2 Ratio
  P0733 Incorrect Gear 3 Ratio
  P0734 Incorrect Gear 4 Ratio
  P0740 Torque Converter Clutch circuit malfunction
  P0745 Pressure Control Solenoid malfunction
  P0750 Shift Solenoid #1 malfunction
  P0755 Shift Solenoid #2 malfunction
  P0760 Shift Solenoid #3 malfunction
  P1000 ODB II readiness function code
  P1170 Rear Oxygen sensor voltage fixed
  P1173 Front Oxygen sensor inversion
  P1195 Barometric Pressure sensor circuit malfunction
  P1196 Starter circuit malfunction
  P1250 Fuel Pressure Regulator Control solenoid malfunction
  P1345 Cylinder discrimination signal
  P1402 EGR Valve position sensor
  P1485 EGR Control solenoid
  P1486 EGR Control solenoid
  P1487 EGR Check solenoid
  P1521 Variable resonance induction system (VRIS) solenoid #1
  P1522 Variable resonance induction system (VRIS) solenoid #2
  P1523 High Speed Inlet Air solenoid malfunction
  P1609 PC Minternal circuit malfunction
  P1709 Throttle Position sensor malfunction
  P1720 Vehicle Speed Sensor circuit malfunction
  P1743 Torque Converter Clutch Control solenoid malfunction
  P1744 Torque Converter Clutch solenoid malfunction
  P1765 3-2 timing solenoid malfunction
  P1792 Idle switch malfunction
  P1794 Loss of battery voltage input
  P1795 EGR boost sensor malfunction
  P1797 Clutch Pedal Position switch or neutral switch circuit malfunction