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Transmission Control Module requested MIL Illumination

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Old Apr 26, 2022 | 09:15 AM
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Default Transmission Control Module requested MIL Illumination

2015 Corvette Stingray: Had new battery replacement.
1. engine light comes on periodically, I went to ORielly's auto and we did the check. It read: transmission Control Module Requested MIL Illumination. Also, I see on t he reading transmission Fluid temperature sensor.
2. due to the new battery replacement, should the sensors be reprogrammed.?
3. My car has 46th miles on it.

Any good advice would be appreciated. I don't want a huge bill from the dealership.





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Old Apr 26, 2022 | 09:18 AM
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Try a system reset: disconnect the negative battery cable for 30 min. You will have to reindex the windows.

Window reindex is all that should be required after a battery replacement.

GL

Ron
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Old Apr 26, 2022 | 09:28 AM
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Ron:
Thank you very much. I'll give it a try or get some one to help me. How do I reindex the windows?
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Old Apr 26, 2022 | 09:43 AM
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From the owner's manual (see links in C7 General | Sticky Threads):

Window Indexing

Indexing automatically lowers the
window a small amount when the
door is opened. When the door is
closed, the window will raise to its
full up position. If either window
does not index properly, it could be
due to loss of power. Before
returning to the dealer for service,
perform the window indexing reset
procedure.

Window Indexing and
Express-Up Reset

Window indexing may be required if
the vehicle battery has been
recharged or disconnected, or is not
working. Express-up and the
convertible top will not function until
the windows are reset. After battery
power is restored, a message
displays in the Driver Information
Center. See Driver Information
Center (DIC) on page 5-26.
Once power is restored:
1. Close the doors.
2. Start the vehicle.
3. Hold the window switch up to the
fully closed position.

I recommend that you browse the C7 General | Sticky Threads. There is a wealth of information accumulated since 2013.

Ron
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Old Apr 26, 2022 | 09:45 AM
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Thanks Ron, I'll give it a try... I'm a sweet lil old lady.. but I love cars and in my 6th vette.... I will ltry and get someone to help me.

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Old Apr 27, 2022 | 05:46 PM
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I just found another thread with a reset procedure. If you can open the hood and the fuse box, pull ENGINE CONTROL MODULE / TRANSMISSION CONTROL MODULE (fuse #53 2015 models) for about 30 minutes, then replace.

Reindex windows.

See attached.

GL

Ron

Attached Images
File Type: pdf
2015 ECM TCM fuse 1.pdf (170.1 KB, 205 views)
File Type: pdf
2015 ECM TCM fuse 2.pdf (13.0 KB, 164 views)
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Old Apr 27, 2022 | 07:58 PM
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You said you changed the battery before and all these issues started to happen. Take a look at you negative battery terminal, there is a small black voltage sense wire on that terminal. If that wire was broken upon battery replacement, this will cause all kind of weird codes & issues to pop up, check & make sure this wire is connected & not broken.
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Old Apr 28, 2022 | 04:20 PM
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The Transmissions code P700 and p710 usually means that you need to replace this harness below in the transmission as there is a short in the harness. There is a TSB

This is not caused by disconnecting the battery

Dave




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Old Apr 29, 2022 | 02:07 PM
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Originally Posted by Dcasole
The Transmissions code P700 and p710 usually means that you need to replace this harness below in the transmission as there is a short in the harness. There is a TSB
Sue, I think this is the TSB Dave is talking about: https://www.tsbsearch.com/Chevrolet/PIP5700B
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Old Apr 29, 2022 | 02:33 PM
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Originally Posted by Dads2kconvertible
Sue, I think this is the TSB Dave is talking about: https://www.tsbsearch.com/Chevrolet/PIP5700B
It is the TSB and the part number is impossible to find , I ended up calling my dealer to verify what I needed , I only replaced one of the internal harneses, the one that connects to the shift selonoids as that has the Temp sensor . The other requires the removal of the valve body , it has nothing to do with where the short in the harness is

Dave
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Old Mar 29, 2023 | 09:07 AM
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You can reset TMC in few steps after reading this. Read Here
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Old Mar 29, 2023 | 09:42 AM
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Originally Posted by gidget11
You can reset TMC in few steps after reading this. Read Here
Yeahhhhhh thats not really how its done ...

Dave
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Old May 13, 2023 | 05:46 AM
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Resetting the transmission control module is useful sometimes. Read this post
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