A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Check engine light problem

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Old Sep 26, 2006 | 12:03 PM
  #1  
Doctor Steve's Avatar
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Default Check engine light problem

I bought a OBDII code checker and plugged it in and checked the car for codes.The car showed no problem codes but now the check engine light stays on?? I have driven the car multiple times since checking but the light continues to stay on? Any suggestions to clear the check engine light? It seems to work just fine on other vehicles showing problems and clearing the dash light. Just not on the A4?? Thanks in advance..Steve
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Old Sep 26, 2006 | 12:05 PM
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Monkeyboy's Avatar
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Default Disconnect the battery for a minute, reconnect

If the problem is not present - no more code. If this code comes back - you still have a problem.
Make sure you have your radio code, I think the older models require you to re-enter the radio code
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Old Sep 26, 2006 | 12:06 PM
  #3  
grey-2002-ar-6sp's Avatar
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Default Have you tried the VAG tool locator?

You can probably get more details with one of these, than a generic OBDII tool.<ul><li><a href="http://www.steve-hall.com/cgi-bin/VAG-Locator.pl">VAG Tool Locator</a></li></ul>
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