Pull carpet from right side of trans tunnel by shifter. You will see black boot over power stud. Make sure its tight and report back

 

lofty - i'd first check the other poster's suggestion, then read my post below. i had an identical issue...see (c) below

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i had a bunch of crazy electrical problems that had 2 mechanics tell me they'verarely seen these problems, and they eluded that it was going to be a very expensive repair because it would take a lot of trouble shooting. It seemed like the problems happened right after i added a radar detector and the forum people thought that was the cause and not just a coincidence.

issues
a)traction control failure - it would get thrown almost always at low speeds
b)car stalled sometimes, typically at low speeds or while stopped.
c)the car alarm and all other electricalaccessories (such as the trunk)would sometimes not work after turning the car off - also the car wouldn't restart...normally after about 10-15 minutes, then it would finally work. I found myself tied to my car at the airport while waiting for a flight, and my girlfriend had to take a cab from my car to a job interview after she stopped for coffee....not fun


fix
replacing the battery cut the frequency of these issues down 80%. I was made aware the voltage was off on the alternator, and it was suggested i replace it. On my way to take the car in, i was .5 miles away from Ken's Austin British Motorcarslocation, and the belt to the power steering broke along with the tensioners. Replacing the tensioners and belt fixed all of these problem listed above, also my car ran smoother.

DR

 

Always a good idea to get codes from ABS module if light came on.

 

the abs traction control failure comes up when voltage is below 10.5 volts.. and
i always find that the trunk power studs to the left of the battery get loose then arch then melt causing a voltage drop.. and also the power stud under the hood right side .. half inch away from the inner fender.. they melt too. causing no crank or no lights.

 

Oh god....my bad. Why was I thinking XK8?

 

Yes to all. Just follow what jaggenius said in his post. At least can read more than 3 letters of plain English without getting scewed up.
j is different than k j is different from k
ok much better

 

Yes jag genius is right on the mark here. Check all the main electrical connections if that doesn't do it, it just maybe that the battery has a bad internal post connection. I've seen that be for and it will drive you crazy.