Car Diagnostic Tools a Haynes or Chilton repair manual will

How to Troubleshoot a Chevy Lumina PCM 1Page by means of your OBD-II scanner's manual and bookmark the pages listing generic OBD-II codes universal to all automobiles created right after 1996.2Print out Chevrolet's OBD-II codes off with the web. These will probably be Common Motor's supplemental difficulty codes. The Lumina's manual will not have these codes. Nonetheless, a Haynes or Chilton repair manual will, and also you will discover it the chapter dealing with emissions.3Read by means of the supplies and highlight all of the trouble codes coping with the PCM. Code P1621, for instance Car Diagnostic Tools, offers together with the PCM's memory and its perfomance. Spot each of the highlighted material into your Lumina's navigator seat.4Walk about the auto and climb in to the driver's seat. Connect your OBD-II scanner for the Lumina's diagnostic computer port. This data link connector may be identified beneath the dash, above the gas pedal.5Turn the Lumina's electrical array on, and depending on your brand of scanner, possibly the engine also. Appear in the scanner's display Professional diagnositic tools, and crucial within a retrieval code, if your brand of scanner was not prefigured to automatically do so. Since all scanners are produced slightly differently, seek advice from the scanner's manual for precise directions.6Scroll through the codes reported on your scanner's display. Appear only for the PCM connected codes you highlighted earlier. If you will find no PCM related codes on the scanner's display, then the element is fine. Seriously look at, nonetheless, troubleshooting any unrelated, non-PCM codes reported by your scanner. Related articles: