Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: where does the ECM power signal come from,check engine code P2509 came up,thanks on 2001 Audi A6 Quattro

Power Input signal intermittent
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Didn't find what you were looking for?