how do i use a jumper wire to get diag.code on 1995 chevy truck

1995 CHEVROLET SILVERADO
25,000 MILES
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JOHN45
  • MEMBER
  • 1 POST
want to use a jumper wire to get engine code to tell me whats wrong
Nov 5, 2011 at 10:16 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
You can't do it on that truck. You can't even use and OBD2 code reader on that one. It's a transition year and it has an OBD2 connector with an OBD1 system. You need a professional scan tool for that one.
Nov 5, 2011 at 10:44 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,399 POSTS
Connect terminals "A" and "B" together, then turn on the ignition switch. In every one I've ever seen, A and B will be right next to each other in one corner. One of the two pins will be missing in each of the other three corners of the plug.
Nov 5, 2011 at 10:45 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
There is no "A" or "B" on this one.
Nov 5, 2011 at 10:50 AM
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