On-board diagnostics [Archive] - Bimmerfest - BMW Forums

: On-board diagnostics

10-17-2009, 05:54 PM
I am trying to read the cel code. I am turning the ignition on and stompping the gas pedal to the floor 5 times in 5 seconds but no flash from the cel.

Is there a right way to do this or a reset that i can do to make the on-board diagnostics work.

Please help i need to get the code enigine has a very rough idle.

10-18-2009, 03:56 PM
Turn the key on to ignition. Where all the lights come on right?

Once there apply and release the pedal 5 times within the 5 seconds......should start working.

10-18-2009, 04:30 PM
thats how i did it and it does not flash.what can be wrong.
am i suppose to floor it all the way to the kick down button or floor it where i press the kick down button 5 times.

10-18-2009, 06:40 PM
I just did mine and I just went down until it touched the kickdown, and it worked fine.

10-18-2009, 11:33 PM
so you didnt actually push down on the kick down is that correct.

10-19-2009, 08:19 AM

10-22-2009, 07:56 AM
tryed to push down to the button tryed pressing the button i did it 5 time in 5 seconds too many times but still will not work. maybe its a code that will only read thru the scan tool is that possible. i dont know i cant get it to flash i dont know what else to try besides takeing it to someone to scan it or buy the scanner.

10-23-2009, 10:08 AM
what year is the car? as i understand it this function only applies to earlier e34. i think only thru 1991 or 1992. after that the code scan tool is needed.

10-23-2009, 11:57 AM
1994 540i and some one else replied with a 1995 525i and it works on his so i dont think thats true that it only work thru 91-92 but thanks anyway.

10-29-2009, 05:34 PM
1994? well first off stop on the peddle 5 or 4 times/ and dont wait 5 seconds in between just back to back. and a 1994 should have a round scantool plug in under the hood and then if i remember right it should have a OBD2 not sure tho but if yours does then you should beable to go to any reliable shop and have to codes pulled up

10-29-2009, 07:00 PM
OBD II did not come out until 1996, some domestic '95 cars had it but not BMW. The pedal stomp test is stepping on the pedal 5 times in 5 seconds.

10-29-2009, 07:13 PM
i tried so many times but wont blink what could that mean. why wont it work on mine i know im doing it right.

E36 Phantom
10-29-2009, 07:44 PM
It's called the "pedal trick" because it really is a trick to get it right. I still don't get it every time, either. You have to do it quickly, but not TOO quickly. And yes, it will work on a 94. Keep trying.