Mystery pigtail

CJANDDAVE · April 5, 2005

Would any one know what this pigtail is for its behind the grill in front of the radiator midway between the top and bottom it has a green cap over the plug as nothing is there for it to plug in to it. Is it for a option.

the truck is a 03' 4.8 LS EC 1500

Thanks for any help

CJANDDAVE · April 6, 2005

Only thing I can think of would be that it's a connection for an ambient air sensor for a truck that has the mirror with a temp display.

<{POST_SNAPBACK}>

The truck has the mirror with a temp display/compass.

<{POST_SNAPBACK}>

Then ya got me. I'd have to see it and maybe then I'd know.

<{POST_SNAPBACK}>

I will post a picture

Frank S · April 6, 2005

It's my understanding that multiple vehicles use the same wiring harness so not all of the pigtails are used in certain applications.

I know I had several unused in my ZR2 and it had every option available. This could be the case on your truck too.

GM-Tech · April 6, 2005

It's my understanding that multiple vehicles use the same wiring harness so not all of the pigtails are used in certain applications.

I don't know if they all use the exact same harness, but it's true that there are often extra connectors hanging off a harness that would go to some option not on that vehicle.

However, I can't think of anything that's in the middle of the radiator, behind the grille on any of the trucks, other than maybe an ambient sensor. I'm not so sure a picture will help.

redvett · April 6, 2005

Would any one know what this pigtail is for its behind the grill in front of the radiator midway between the top and bottom it has a green cap over the plug as nothing is there for it to plug in to it. Is it for a option.
the truck is a 03' 4.8 LS EC 1500

Thanks for any help

<{POST_SNAPBACK}>

If the pigtail has a dk green/white stripe and black/white stripe wire its the sensor for the mirror outside temp.

GM-Tech · April 6, 2005

If the pigtail has a dk green/white stripe and black/white stripe wire its the sensor for the mirror outside temp.

He says he has that kind of mirror. He didn't indicate it wasn't working, in which case the wiring is not for that.

redvett · April 6, 2005

If the pigtail has a dk green/white stripe and black/white stripe wire its the sensor for the mirror outside temp.

He says he has that kind of mirror. He didn't indicate it wasn't working, in which case the wiring is not for that.

<{POST_SNAPBACK}>

All there is is a cap over the wire connector end and if there is a dk green/white stripe and black/white stripe wire its the sensor .

GM-Tech · April 7, 2005

All there is is a cap over the wire connector end and if there is a dk green/white stripe and black/white stripe wire its the sensor .

Guess I haven't replaced one of those in a while. Don't remember any of them just being a cap over the connector.

GM-Tech · April 6, 2005

Only thing I can think of would be that it's a connection for an ambient air sensor for a truck that has the mirror with a temp display.

CJANDDAVE · April 6, 2005

Only thing I can think of would be that it's a connection for an ambient air sensor for a truck that has the mirror with a temp display.

<{POST_SNAPBACK}>

The truck has the mirror with a temp display/compass.

GM-Tech · April 6, 2005

Only thing I can think of would be that it's a connection for an ambient air sensor for a truck that has the mirror with a temp display.

<{POST_SNAPBACK}>

The truck has the mirror with a temp display/compass.

<{POST_SNAPBACK}>

Then ya got me. I'd have to see it and maybe then I'd know.