XJS - FF77 CODE
Guess I spoke to soon.
Went out for a drive tonight and, after a couple of miles engine stopped
again. FF77 displayed.
Disconnected and reconnected battery and eventually it restarted; stopped
again, disconnected and reconnected battery and drove home, no further
Unfortunatly, I was convinced the old battery was the problem and did not
take any tools with me to do even an elementary diagnosis. Now it runs
What to do? According to the Shop Manual this seems like a breakdown in
the speed signal from the PCMI. Wonder if this could also be the cause of
my recent cruise control failure.
I do not have access to an oscilloscope, so a trip to the dealer might be
Has anybody any experience of this type of problem?
1995 XJS V12