wont start

Asked by ckirkpat Aug 09, 2018 at 11:09 PM about the 2000 BMW X5 4.4i AWD

Question type: Maintenance & Repair

i installed a new transmission wiring harness, now x5 wont start. everything
comes on. battery is fully charged, but wont turn over. computer wont reset by
using two buttons on the dash. was starting before.

2 Answers

GuruV8VJD answered 6 years ago

Turn ignition switch "on", do not start. Look at the instrument cluster where you see trans position. "PRND" If those letters are "dim" and one is not bright (which is indicating the trans position), look at the neutral switch and wiring harness, then look at replacing the transmission control computer. "EGS". I replaced my transmission internal harness, then X5 would not start, I had the grey wire on the neutral switch damaged. i suspect it shorted to earth and fried my trans computer.

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