Code P1777
#2
Code P1777---FIXED!
On further research I found that Jag issued a TSB stating that this code on 95s was indicative of a TCM failure.That explained the "limp mode" problem. The trans wouldnt shift. Stuck in 3rd. They recommend replacement with a 2400 AH 001 model TCM. I was able to find an 004 unit (XJ6) cheap and tried it.
IT WORKED! Shifts like a dream...
IT WORKED! Shifts like a dream...
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mirisisa (07-01-2013)
#3
Code P1777
Hi!
I'm having the same problem with my 1995 XJS convertible. Just went into limp mode last night when I started it up. Ran the codes this morning and I got a P1777.
For you the problem was the TCM? Where did you find a replacement? Your help would be greatly appreciated!!
Thanks!!
I'm having the same problem with my 1995 XJS convertible. Just went into limp mode last night when I started it up. Ran the codes this morning and I got a P1777.
For you the problem was the TCM? Where did you find a replacement? Your help would be greatly appreciated!!
Thanks!!
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philwarner
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