I just checked for codes on my Scan Gauge for grins. Found I have P0705. My search resulted in Kris saying Transmission Range Sensor Circuit malfunction. I got a p0783 yesterday with a flashing OD light. Cleared it with the Scan Gauge and it never came back.

On my way home from Oregon. Thanks in advance.

 

<table class="MsoNormalTable" style="" border="1" cellpadding="0" cellspacing="0"> <tbody><tr style=""> <td style="padding: 2.25pt;" valign="top">P0705<o></o>
</td> <td style="padding: 2.25pt;" valign="top"> Digital TR Sensor
</td> <td style="padding: 2.25pt;" valign="top"> Digital TR circuit failure. <o></o>
</td> <td style="padding: 2.25pt;" valign="top"> Digital TR circuits, indicating an invalid pattern in TR_D. Condition caused by a short to ground or an open in TR4, TR3A, TR2, and/or TR1 circuits. <o></o> </td> <td style="padding: 2.25pt;" valign="top"> Increase in EPC pressure (harsh shifts). Defaults to (D) or D for all gear positions. In (D) position transmission stuck in D or manual 2. May flash MIL.<o></o>
</td> <td style="padding: 2.25pt;" valign="top"> Go To Pinpoint Test D . <o></o> </td> </tr> <tr style=""> <td style="padding: 2.25pt;" valign="top"> P0783 ^a
</td> <td style="padding: 2.25pt;" valign="top">SSA, SSB or Internal Transmission Components <o></o>
</td> <td style="padding: 2.25pt;" valign="top"> 3-4 shift error. <o></o>
</td> <td style="padding: 2.25pt;" valign="top"> Engine rpm drop not detected when 3-4 shift was commanded by PCM. <o></o>
</td> <td style="padding: 2.25pt;" valign="top"> Incorrect gear selection depending on failure mode and transmission range selector lever position. Refer to the Solenoid Operation Chart. Shift errors may also be due to other internal transmission concerns such as stuck valves or damaged friction material. May flash TCIL.<o></o>
</td> <td style="padding: 2.25pt;" valign="top"> Go To Pinpoint Test A <o></o>
</td> </tr> </tbody></table> <o>Doesn't sound too good for the tranny. My experience is with a stick, so I'll just post up what the manual says.
</o>

 

Thanks Chris. Trans seems to be operating fine. I'm towing the 5er running PHP 65 tow tune. I've run it pretty hard up long grades with the OD off. Did you know the grade to Mt. Rushmore is 10 percent?! ha ha. Pulled tow an 8, two 7s and more 6s than I can count, ha ha....

Thanks again. Reps sent.

 

I got a couple weird trans codes a while back with my DP & stock trans. Since I put in the TransGo & TW tunes, not a single hiccup. I see you have the Sonnax stuff in -- what gets changed with that kit? Is it similar to the TransGo?

 

I'd send an email off to Bill or try posting this on his forum then. Programmers change shift patterns and such, so the codes just may be a result of tuning that need to be ignored on certain grades.

The comments about stuck valves and harsh shifts in the manual could just be a result of the increased line pressure from the tuner. At least it's worth hoping for.

 

Are you having issues? Are you in need of some help?

 

No issues, thanks for asking Jay. As posted above, I think the codes may be a result of how I'm taking advantage of the this awsome 65tow tune. This tune holds a long time but can be controlled by your right foot.

Example, yesterday I pulled a 10 percent grade for 1.5 miles in manual 2nd at about 2.5k rpms and then went back down it in manual 2nd. Then today, I smoked a 6leaker up a 6 percenter while in 3rd (OD off) at about 63 mph. Yes he was also pulling a fiver....

 

Ok. That's good. I was going to offer help if I could. Where are you in MN and for how long?

 

PM responded. Reps sent. Thank you for asking.

 

Thanks for all the replies. I cleared the code this morning, drove 566 miles to the house (been gone since 6/6). Truck/trans performed like it should. No codes.

Good to be home