Third Generation F-Body Message Boards - Code 15, Coolant Temp Sensor Location?

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Axel Stone

04-07-2019 04:18 PM

Code 15, Coolant Temp Sensor Location?

Hey everyone,
I finally picked up a 1984 Trans Am! I'll post pics once I clean her up.

On to the problem:
The OBD1 system is giving a Code 15, which seems to be for the coolant temperature sensor. I picked one up from a parts store for around $20, but now I'm having trouble finding where it goes. The engine is a 5.0L V8.

If anyone can post a picture or tell me where the coolant temp sensor is, I'd really appreciate it. And sorry if this is a dumb question, but I couldn't find a thread for this specific problem in the search.

Thanks in advance!

8t2 z-chev

04-07-2019 06:49 PM

Re: Code 15, Coolant Temp Sensor Location?

it is on the thermostat housing,black and yellow wires going to it.AFAIK,the original style CTS is no longer made,so you might have to splice on the later,~'85 on,CTS plug

Axel Stone

04-09-2019 06:08 AM

Re: Code 15, Coolant Temp Sensor Location?

Quote:

Originally Posted by 8t2 z-chev (Post 6293599)

it is on the thermostat housing,black and yellow wires going to it.AFAIK,the original style CTS is no longer made,so you might have to splice on the later,~'85 on,CTS plug

Thanks for the response!
Is this it?

Spoiler

By the way, I found and ordered the official service manual yesterday. Should be here soon.

Tuned Performance

04-09-2019 12:46 PM

Re: Code 15, Coolant Temp Sensor Location?

What’s left of it

https://www.ebay.com/itm/GM-Coolant-...gAAOSwz35bGEcQ

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