722.6 Mercedes Sprinter 3.0 Sets P0743 FIXED

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brettsb16a2
Posts: 187
Joined: Wed Apr 29, 2015 12:39 pm
First Name: Brett
Last Name: Alex
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722.6 Mercedes Sprinter 3.0 Sets P0743 FIXED

Post by brettsb16a2 » Fri Jun 09, 2017 10:25 am

Sprinter
722.6
Sets P0743 TCC Solenoid Circuit

Originally came in for Input Speed sensor code P2767, we replaced conductive plate. After that repair we started getting the other code only of P0743 only. We put in another conductive plate with the same result of a P0743. I performed the diagnostics and wiring check good. Ohm tested tcc solenoid at tcm and it test 3.7 ohms hot. The code sets at a weird time, it seems to set after a test drive, shut the vehicle off and wait a few minutes and immediately its in limp mode and the code set not even pulling out of the parking lot. One thing it never goes into limp mode while driving. Only after a key cycle. We were thinking of replacing the female pin first at the harness and the TCC but we really think the computer is causing this issue. The pan was clean and this vehicle has 96794 miles on it. Anyone seen this or have any other suggestions?

Thank you!

brettsb16a2
Posts: 187
Joined: Wed Apr 29, 2015 12:39 pm
First Name: Brett
Last Name: Alex
Other:

Re: 722.6 Mercedes Sprinter 3.0 Sets P0743 FIXED

Post by brettsb16a2 » Wed Jun 21, 2017 1:42 pm

Since the TCC solenoid was cheap, we replaced it and the vehicle hasn't been back since. Must have intermittently been shorting itself out.

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