I have a 2001 BMW 525i, the speedometer and RPM modules stop working. Also, the ABS, and brake lights came on at the same time the speedometer stop working. Someone told me it could be a fuse that went bad. Any thoughts
It's not the fuse. You need to jump start the diagnostic cable. First you need a battery of 9v and short the + and - terminal to the diagnostic cable. Then you will see smoke. After that it should work fine.
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code p 0500 and 503 both refer to the vehicle speed sensor(VSS)---circuit malfunction or intermittent/ errattic high input====causes wiring-=--VSS---ECM--wiring poor connection--other connected system---instrument panel---VSS---communication control module
to have the abs light on I would be checking the communication control module or the ECM
You have multiple problems. Make sure the brake fluid is at the proper level. Most of the time when I see this and the fluid is correct with no other mechanical issues it turns out there is a short due to an after market alarm that was installed incorrectly. Make sure you don't have a caliper sticking on one of the wheels which will cause the ABS and Brake Lights to come on. You'll also want to make sure your emergency brake isn't stuck. The ABS module malfunctioning would explain the ABS light and the Brake Light but not the speedometer issue. I have given you a lot of things to check because you need to be sure those are all working correctly. Because you added the Speedometer issue this is most likely going to be a short somewhere in the circuit or a possible issue with the ECM. It is possible a faulty ABS module could cause this, before you go get a new one though, try locating one in a local Junk yard and switch it out. If the lights go out you know that is the problem and you can go get a new one, I don't recommend using junk yard ABS parts for anything other than testing. With those lights on you can go to Auto Zone or Advance auto and ask them to connect the code reader to the vehicle and get a better idea of where you need to look.
hi...sorry little confused..bmw? or ford focus? if bmw you can try checking on the passenger side where you will find the speed sensor and the brake light sensor, if both have come on then they might have become disconnected from the plugs on that side ....hope this helps
I had the same problem with ABS light and speedometer, I was told that it is the transmission control module. It has not yet stopped shifting but I have had times where it just wont stay running. It will start and then stall. Hope this helps.