With Analog Voltmeter
1. Disconnect the jumper connecting PCM STI to ground.2. Connect a Rotunda 88 Digital Multimeter 105-00053, or equivalent as a tachometer.
3. Run engine at 2000 rpm for three minutes.
4. Turn engine OFF, and wait 10 seconds.
5. Start engine. Run engine at idle.
Diagnostic Connector (STO/STI):
6. Jumper PCM STI on diagnostic connector to ground.
7. 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,
- If codes are present, refer to Service Code Chart below.
CODE AFFECTED CIRCUIT PINPOINT TEST
02 Crankshaft Position Sensor CKP CKP - Crankshaft Position Sensor
03 Cylinder Identification Sensor CID CID - Cylinder Identification Sensor
08 Air Flow Meter VAF VAF - Volume Air Flow Sensor
09 Engine Coolant Temperature ECT ECT - Engine Coolant Temperature Sensor
10 Intake Air Temperature IAT IAT - Intake Air Temperature Sensor
12 Throttle Position Sensor TP TP - Throttle Position Sensor
14 Barometric Pressure Sensor BARO BARO - Barometric Pressure Sensor
15 Oxygen Sensor O2S O2S - Oxygen Sensor
17 Oxygen Sensor O2S O2S - 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