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Erasing Codes & Retesting

Erasing codes and retesting will give an indication of whether codes are hard or intermittent defects. Hard codes reset immediately and will be displayed during retest.

Disconnect negative battery cable. Press brake pedal for 5-10 seconds. Turn off NGS or Super Star II tester. Reconnect battery. Perform tests under RETRIEVING CODES to again display and record codes.

TROUBLE CODE IDENTIFICATION

Service Code Fault Circuit & Pinpoint Test
02 Crankshaft Position Sensor CKP 
06 Vehicle Speed Sensor VSS 
08 Mass Airflow Meter MAF 
09 Engine Coolant Temperature Sensor ECT 
10 Intake Air Temperature Sensor IAT 
12 Throttle Position Sensor TP 
14 Barometric Pressure Sensor BARO 
15 Oxygen Sensor O2S 
16 Exhaust Gas Recirculation Valve Position Sensor EVP 
17 Oxygen Sensor O2S 
34 Idle Speed Control ISC
Codes Not Listed Power & Ground Connections PGC