1999 NB Silverado Tranny code help

lawnscapes2 · March 7, 2007

I had a friend of mine hook my truck up to his computer because i have been thinking that my tranny is having a problem, and the code reader read 1 current code.

P0705C Transmission Range Switch Circuit - this is what it actually read on the code reader screen

All i could find online was these two:

P0705 Trans Range Switch Circuit

or

P0705 Transmission Range Sensor Circuit malfunction (PRNDL Input)

I wasnt sure which it was and there was no mention of the C at the end of the code

Also i don't know what this code means or what i should check.

The tranny has been having a small kick shifting from 1st to 2nd but only when going slow to medium speeds. When you accelerate fast there is no kick at all its smooth.

It also has a clunk going from park to reverse but NOT from reverse to park or from any other gear anywhere.

So i was wondering what you guys think i should do with this code?

Any help would be greatly appreciated.

thanks,

Matt