Chat OBDII Troubleshooter Find a Shop App

Leave this field empty

Menu

Leave this field empty

Leave this field empty

App
Chat
OBDII Troubleshooter
Auto Glossary
Find a Shop
For Shop Owners

Audi Factory Service Bulletin OBDII Code P1999

Open original PDF Download PDF

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

PDF

Repair report

Take this diagnosis with you

Get a printable plan with step-by-step diagnostics, live-data checks, repair tips, estimated costs, and a downloadable PDF.

Built for your selected trouble code
Easy to share with a shop or mechanic

Create Printable Report

All OBDII Codes

Powertrain (P) Codes
Network (U) Codes
Body (B) Codes
Chassis (C) Codes

Articles

Step-by-Step Diagnostic Process
Simple Guide to Car Problems
Check Engine Light Explained
5 Most Common Reasons for MIL

Browse Codes by Make

Browse Codes for Specific Model-Year

Chevrolet Silverado
GMC Sierra
Ford F150
Ford Fusion
Honda Accord
Honda Civic
Honda CR-V
Infiniti G35
Nissan Altima
Nissan Maxima
Nissan Pathfinder
Nissan Rogue
Nissan Sentra
Toyota Camry
Toyota Corolla
Toyota Highlander
Toyota Prius
Toyota RAV4
Scion xB

Company

About AutoCodes
Contact Us
Updates
Privacy Policy
Terms & Conditions
© 2010-2026 AutoCodes.com

Resources

Auto Glossary
Android App
Auto Articles

Sites

AutoCodes.com
Engine-Codes.com
Infinitihelp.com
Nissanhelp.com