trifecta ?

[raiderrider58]

Hello brand new to this forum. I have a 2003 x5 77k low miles. beutiful shape in and out. but it came with the trifecta amber lights on. My question is if i need to read erase, program any of the systems modules etc. what do I need as far as scanner,, inpa harness and software? what would you recommend to get so i can do this stuff myself? especially if i need to program abs or steering wheel angle sensor. any help or advice would be greatly appreciated. Ive done alot of reading already but theres so much,and conflicting ideas out there. thanks again for any help.

[jclausen]

You need to find out what the fault codes are the proceed with diagnostics, the reason you get multiple lights is because dsc feeds info to other systems so if dsc is having a problem then the info being send is in correct, the cause is mostly in the dsc system

[91e34M5]

95% chance the plastic gear in the actuator is stripped. Check youtube for actuator gear replacement on an x3 or x5. You can purchase a replacement gear from ebay or from odometergears.com. The installation/replacement of the gear isn't that difficult if you are decent at wrenching. After installation, it's best to reset the limits of the gear with a scantool. I personally use a Foxwell NT510 for scanning and maintenance.

[jclausen]

I recommend scanning for faults first, who knows what the problem is

[dukedkt442]

I'm assuming your X5 is the facelifted version? Earlier X5s didn't have X-drive AFAIK (X-drive isn't the same as earlier AWD systems) and didn't have the actuator servo motor.

Assuming X-drive, bad wheel-speed sensors or their reluctors on the axles can give the light triad; the reluctors rust swell, changing the air gap and possibly contacting the sensors. If let go bad enough, bad wheel bearings also affect the air gap, sometimes allowing the axle to contact the sensor.

A slightly different version of the triad sees the airbag light as one of the lights, which points to the steering angle sensor.

As mentioned above, pull some codes first.