LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

SeS light came on it read transmission temp sensor.

Old 04-10-2019, 08:28 PM
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SeS light came on it read transmission temp sensor.

Please help. I had a ses come on in my 95 automatic
Z28 transmission temp sensor? Is there a such sensor I tried to look it up on line it comes back as coolant temp sensor. I know where these are but i dont want to change them if its not them. Thank you
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Old 04-10-2019, 09:03 PM
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Re: SeS light came on it read transmission temp sensor.

What is the exact code number?
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Old 04-11-2019, 11:34 AM
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Re: SeS light came on it read transmission temp sensor.

Originally Posted by Dtredz28 View Post
Please help. I had a ses come on in my 95 automatic
Z28 transmission temp sensor? Is there a such sensor I tried to look it up on line it comes back as coolant temp sensor. I know where these are but i dont want to change them if its not them. Thank you
No need to look it up online. Shoebox has a code list SPECIFIC to the LT1 PCM:

http://shbox.com/1/Dtcs.htm


If you want a detailed description of the code, what sets it, and what it takes to fix it, there's a free download of the factory service manual for your car, here, courtesy of GaryDoug:

http://www.mediafire.com/?40mfgeoe4ctti


In the meantime, yes, there is a transmission fluid temp sensor inside the transmission. It is part of the transmission fluid pressure switch assembly. But until you answer Shoebox's question on the exact numerical DTC, it's very difficult to help you.
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Old 04-11-2019, 02:41 PM
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Re: SeS light came on it read transmission temp sensor.

I will be taking it to my buddys today he has a code scanner. I will post it later. Thank you.
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Old 04-12-2019, 05:12 PM
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Re: SeS light came on it read transmission temp sensor.

Update check engine light is on its is reading communicate error. I took it to the shop. Not good with electrical.
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Old 04-12-2019, 05:17 PM
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Re: SeS light came on it read transmission temp sensor.

Were you possibly using an OBD-2 scanner? If so, thats a common mistake, but your 1995 is OBD-1 with a 16-pin OBD-2 style DLC connects. Means you need an OBD-1 scanner with a 12-pin to 16-pin adapter, or a 16-pin cable.
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Old 04-12-2019, 05:20 PM
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Re: SeS light came on it read transmission temp sensor.

My buddy has a scanner that normally reads it. But this time it wouldnt plus its in limp mode. I already replaced the ecm.
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