94 Volvo 850 OBD module A

  • Thread starter Thread starter Greg
  • Start date Start date
G

Greg

I have a canadian 94 850 wagon (20V non-turbo) and have two diagnostic
modules...A and B where can I get info on what the second module is for
and what all the pins and codes are...I have bits and pieces of threads
with mention of an A module but I am having problems interpreting the
codes (B2 and B6 both show 111) however B3 ,B7, A2 have non111 codes.

If there is multiple errors (codes) on a pin how is that indicated...

I have still had no success starting this beast since I got it
checked fuel pressure/noid indicator/MAF disconnect /O2 sensor
disconnect/ got spark (will replace plugs tommorrow anyway)/ checked
codes (B2/B6)/ no visible cracks in vacuum lines...)

Despite my failure I am very impressed with the level of engineering
and servicability. The only other vehice I owned that impressed me was
my 1981 BJ42 Landcruiser (long gone) since then (up unitl now!) I have
avoided servicing my vehicles and am climbing the steep part of the
learning curve on the fuel injection/computer control issues.

I appreciate this great sight and all your help.

Greg
 
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