The P0000 code is an ISO-SAE reserved code with no valid diagnostic
Date : 22-12-2024 03:38 PM
A P0000 code is aninvalid diagnostic trouble code (DTC) that indicates a processing error in the Powertrain Control Module (PCM).It's not a generic powertrain code, and it's rarely seen because it's not displayed by many code reading devices.Some code readers may display a P0000 code with descriptions such as “No Self Diagnostic Failure Indicated”, “No Diagnostic Trouble Codes Found”, or “Unknown”.On our Passat B5.5 TDI, I got a CEL the other day, did a scan with my ScanGauge II and it reported P0000. Went home and did a VagCom scan and it reported that number 2 glow plug was faulty. Dealer replaced the glow plug under warranty. Seems to me that the ScanGauge knew there was a fault, but couldn't tell what it was, and reported P0000 instead.