With Check Engine Light

1. Run engine at 2000 rpm for two minutes.
2. Turn engine OFF, and wait 10 seconds.
3. START engine.
4. Run engine at idle.
5. Jumper STI on diagnostic connector to ground.

Diagnostic Connector (STO/STI):

6. Record service codes.

IF NO CODES AND SENT HERE FROM KEY ON ENGINE OFF (KOEO) Self Test, Switch Monitor Test

IF NO CODES AND SENT HERE FROM ERASE AND RETEST, Scan Tool Testing and Procedures

IF CODES ARE PRESENT, refer to SERVICE CODE CHART below.

CODE AFFECTED CIRCUIT PINPOINT TEST

02 Crankshaft Position Sensor CPS CPS - Crankshaft Position Sensor

03 Cylinder Identification Sensor CID CID - Cylinder Identification Sensor

08 Vane Air Flow Meter VAF VAF - Vane Air Flow Sensor

09 Engine Coolant Temperature Sensor ECT ECT - Engine Coolant Temperature Sensor

10 Vane Air Temperature Sensor VAT VAT - Vane Air Temperature Sensor

12 Throttle Position Sensor TP TP - Throttle Position Sensor

14 Barometric Pressure Sensor BP BP - Barometric Pressure

15 Exhaust Gas Oxygen Sensor EGO EGO - Exhaust Gas Oxygen Sensor

17 Exhaust Gas Oxygen Sensor EGO EGO - Exhaust Gas Oxygen Sensor

25 Solenoid Controlled By Ground SCG SCG - Solenoid Controlled By Ground

26 Solenoid Controlled By Ground SCG SCG - Solenoid Controlled By Ground

34 Solenoid Controlled By Ground SCG SCG - Solenoid Controlled By Ground

41 Solenoid Controlled By Ground SCG SCG - Solenoid Controlled By Ground

CODES NOT LISTED PGC PGC - Power and Ground Connections

NOTE: If codes received in Key ON Engine Off (KOEO) Self Test from the first time cannot be duplicated it may be necessary to tap suspected sensors, shake and wiggle component harness, or drive the vehicle in order to induce a failure.