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Home >> GMC Truck >> 1999 >> S15/T15 Sonoma P/U 2WD L4-2.2L VIN 4 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair >> Repair Instructions >> PCM Replacement/Programming >> Functional Check

Functional Check

1. Clear the diagnostic trouble codes (DTCs).
2. Perform the On-Board Diagnostic System Check.
3. Start the engine and idle the engine for 1 minute.
4. Use the scan tool in order to inspect for DTCs.
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