2005 Chevy Avalanche error codes

2005 CHEVROLET AVALANCHE
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STORMSURF
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Electrical problem
2005 Chevy Avalanche V8 Four Wheel Drive Automatic

Hi. I'm getting P0332, P0740, P0753, P0758, P0785 and P2761 error codes. I've heard that when getting multiple codes pointing to the transmission/solenoid, it could be a bad ignition switch. I'm also losing the speedometer at times as well. Any help would be appreciated. Thank you.
Mar 28, 2010 at 10:41 AM
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HMAC300
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the one code is a low inputknock sensor whic hcan be from not driving right due to the trans problems. I think this may all relate to the speed sensor especially since you are saying you have problems with the speedo. Either that oryou have connection problems at the speedo sensor. that would also throw off all your trans stuff like TCC control ad shfit control which are the other codes. the only way you can check the speedo sensor is to see if you are getting voltage to it and whether it is in the right ohm range. Of course if you've hit something on the road you could have broken wires at the harness by the transmission as well....
Mar 28, 2010 at 4:10 PM
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STORMSURF
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[quote:bdd320905a="hmac300"]the one code is a low inputknock sensor whic hcan be from not driving right due to the trans problems. I think this may all relate to the speed sensor especially since you are saying you have problems with the speedo. Either that oryou have connection problems at the speedo sensor. that would also throw off all your trans stuff like TCC control ad shfit control which are the other codes. the only way you can check the speedo sensor is to see if you are getting voltage to it and whether it is in the right ohm range. Of course if you've hit something on the road you could have broken wires at the harness by the transmission as well....[/quote:bdd320905a]

Thank you very much for the reply. I will concentrate on the speed sensor/wiring and report back. Cheers.
Mar 28, 2010 at 4:34 PM