2002 Chevy S-10 can not communicate with computer

Tiny
PROCESSOR2008
  • MEMBER
  • 2002 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 76,980 MILES
Check engine lite is on. Have had 3 different shops try to read codes. They get a message saying cannot communicate with module. Any suggestions?
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Wednesday, August 27th, 2008 AT 6:53 AM

8 Replies

Tiny
MASTERTECHTIM
  • MEMBER
Check fuses in the fuse box, I always find one blown causing no power to the connector.
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Wednesday, August 27th, 2008 AT 6:56 AM
Tiny
PROCESSOR2008
  • MEMBER
Now that the codes can be read, here is what it says.
" a short to ground or a short to battery has been detected in shift selonoid A". The problem I am having is the car will not shift into overdrive or lock up the converter. When you are under the car looking up at the tranny, is selonoid A on the Pass or drivers side in the tranny?
Thanks in advance.
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Thursday, August 28th, 2008 AT 7:51 PM
Tiny
MASTERTECHTIM
  • MEMBER


http://www.2carpros.com/forum/automotive_pictures/139033_no_12.jpg

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Thursday, August 28th, 2008 AT 9:10 PM
Tiny
BADBO
  • MEMBER
Change 1-2 and 2-3 they are the same and come in pairs at any gm dealer. If you like you may use a DOMV and check the resistance on each one. You meter should show all 000's if it is good.
Badbo
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Thursday, August 28th, 2008 AT 9:33 PM
Tiny
PROCESSOR2008
  • MEMBER
Thanks again for your prompt reply and excellent help. Right on the money, again!
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Friday, August 29th, 2008 AT 7:44 AM
Tiny
MASTERTECHTIM
  • MEMBER
Cool
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Friday, August 29th, 2008 AT 1:48 PM
Tiny
PROCESSOR2008
  • MEMBER
Changed both shift selonoids, filter, fluid, gasket. Drove approx 50 miles, worked great. NOW, it sounds like it is starving for fluid, will not shift unless you let off gas pedal, and down shifts at the slightest incline or speed up. What could be problem. Fluid level is right on. Also added a can of additive when re-filled, (lucas).
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Sunday, August 31st, 2008 AT 9:28 AM
Tiny
MASTERTECHTIM
  • MEMBER
Have computer rescanned for codes and lets go from there
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Tuesday, September 2nd, 2008 AT 3:27 PM

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