My data booklet covers models 700, 900, S90, V90, 850, S70, V70, C70 from 1991 to 1998 so the codes should be applicable to your 1994 model.
On the 850 it may take 20 miles or more of driving for the light to extinguish plus several stop/start cycles.
I remember using the early flash code system on my 480's, many, many moons ago, but couldn't remember the sequence/procedure. Found the following procedure on
Volvo 480 Club Europe (codes not applicable):
Quote:
After the faults have been remedied and having done two readouts of the fault codes, the memory function can be erased. This is done as follows:
Keep the button pressed in for at least 5 seconds and then release it.
The diode lights up after 1.5 seconds.
Depress the button one more time within 5 seconds and keep it pressed in for at least 5 seconds.
A new readout of test function 1 should indicate flash code 111
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Alternatively, if above doesn't work, the chaps in the
700/900 Series General may offer assistance reading and deleting DTCs.
And no need to pay for anything that is freely available to us enthusiasts. Maybe try a different web browser
