Loose wire by fuel filler tube/neck. - Toyota Yaris Forums

chrsfrm · 07-29-2010, 01:20 PM

Hi Guys, just had a tyre changed and whilst up on jack I noticed an unconnected wire. It is a single black wire, not in a pair, with a small female connector crimped on, not a blade one but round, approx 1mm diameter. Nothing obvious for it to connect to, no empty spade. Sits in a crease down the back of the filler neck. I wonder if it is a static earth? My car is a diesel so I don't have a Haynes or other manual to help. Can anyone help with this please. Thanks guys.

CTScott · 07-29-2010, 02:11 PM

I just looked through all of the documentation that I have on the diesel and couldn't find anything showing a wire by the filler neck. Our gasoline ones don't have any wiring there.

Is yours a 1st or 2nd generation Yaris?

chrsfrm · 07-29-2010, 02:37 PM

Hi CT, Thanx for trying.
It is 1st I gues, being a 1.4D 2004 year T Spirit.
Regards
Chris

severous01 · 07-29-2010, 03:26 PM

antenna for TPMS???

CTScott · 07-29-2010, 04:20 PM

Quote:

Originally Posted by severous01

antenna for TPMS???

04 didn't have TPMS.

If it's a 5 door, it could possibly be the wire going to the door courtesy switch for the rear door, as that is a small single conductor wire. In that case though, the dome light would stay on, and the door open indicator would be on on the cluster.

chrsfrm · 07-29-2010, 05:05 PM

Thanx both.
AS CT syas mine does not have TPMS.
Won't be a rear dooe courtesy either as its length is only that of half way down the filler neck, stops where the tank joins tube by bolted bracket. No warning lights are on either. All very odd. Doesn't look like any aftermarket addition.

CTScott · 07-29-2010, 05:11 PM

Can you post a picture? That might help in tracking down what it is.

chrsfrm · 07-30-2010, 05:33 AM

Here are 2 pics. You can see the size of wire against my finger size. Thanks.

yarisugi · 07-30-2010, 11:54 AM

Could you back up a bit and take a photo of it from a distance - where the wire is entering the fuel filler area? It's not the wire to open the filler door from inside the car is it?

CTScott · 07-30-2010, 12:03 PM

Quote:

Originally Posted by yarisugi

Could you back up a bit and take a photo of it from a distance - where the wire is entering the fuel filler area? It's not the wire to open the filler door from inside the car is it?

I was wondering that as well. The way that the end is fused onto it makes it look more like a mechanical cable than an electrical one.

chrsfrm · 07-30-2010, 01:01 PM

Thanx guys, the filler cover still opens & closes easily as usual so I do not think it is that. It was my first thought too.

chrsfrm · 07-30-2010, 01:09 PM

Tried some more pics but to be honest they did not show up anything more than the others. It is a bit tight in teh filler area. When you see the wire in real life it still looks like a single electrical wire with a female connection. The only possible places it could connect would be on bare metal, on the tube clamp. Is there a static earth to the filler? Not sure why though as filler tube is plastic.

CTScott · 07-30-2010, 01:58 PM

Quote:

Originally Posted by chrsfrm

Tried some more pics but to be honest they did not show up anything more than the others. It is a bit tight in teh filler area. When you see the wire in real life it still looks like a single electrical wire with a female connection. The only possible places it could connect would be on bare metal, on the tube clamp. Is there a static earth to the filler? Not sure why though as filler tube is plastic.

I'm stumped, as there's no ground shown in the EWDs anyplace near there.

I just looked at the EPC to see if it showed a harness that for some reason the EWDs lack, but it didn't. Here's the 04 diesel's fuel fill as shown by the EPC:

06 Yaris Fuel Tank.jpg

07-29-2010, 01:20 PM	#1
chrsfrm Drives: Yaris 1.4 T Spirit Join Date: Aug 2009 Location: UK Posts: 7	Loose wire by fuel filler tube/neck. Hi Guys, just had a tyre changed and whilst up on jack I noticed an unconnected wire. It is a single black wire, not in a pair, with a small female connector crimped on, not a blade one but round, approx 1mm diameter. Nothing obvious for it to connect to, no empty spade. Sits in a crease down the back of the filler neck. I wonder if it is a static earth? My car is a diesel so I don't have a Haynes or other manual to help. Can anyone help with this please. Thanks guys.

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07-29-2010, 02:11 PM	#2
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	I just looked through all of the documentation that I have on the diesel and couldn't find anything showing a wire by the filler neck. Our gasoline ones don't have any wiring there. Is yours a 1st or 2nd generation Yaris?

07-29-2010, 02:37 PM	#3
chrsfrm Drives: Yaris 1.4 T Spirit Join Date: Aug 2009 Location: UK Posts: 7	Hi CT, Thanx for trying. It is 1st I gues, being a 1.4D 2004 year T Spirit. Regards Chris

07-29-2010, 03:26 PM	#4
severous01 Drives: 2008 yaris, stripped, red Join Date: Jan 2009 Location: SE Texas Posts: 977	antenna for TPMS???

07-29-2010, 05:05 PM	#6
chrsfrm Drives: Yaris 1.4 T Spirit Join Date: Aug 2009 Location: UK Posts: 7	Thanx both. AS CT syas mine does not have TPMS. Won't be a rear dooe courtesy either as its length is only that of half way down the filler neck, stops where the tank joins tube by bolted bracket. No warning lights are on either. All very odd. Doesn't look like any aftermarket addition.

07-29-2010, 05:11 PM	#7
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	Can you post a picture? That might help in tracking down what it is.

07-30-2010, 11:54 AM	#9
yarisugi やりすぎだ～ View User's Garage Drives: Me: Nuts: Join Date: Nov 2008 Location: ハワイ Posts: 2,041	Could you back up a bit and take a photo of it from a distance - where the wire is entering the fuel filler area? It's not the wire to open the filler door from inside the car is it?

07-30-2010, 01:01 PM	#11
chrsfrm Drives: Yaris 1.4 T Spirit Join Date: Aug 2009 Location: UK Posts: 7	Thanx guys, the filler cover still opens & closes easily as usual so I do not think it is that. It was my first thought too.

07-30-2010, 01:09 PM	#12
chrsfrm Drives: Yaris 1.4 T Spirit Join Date: Aug 2009 Location: UK Posts: 7	Tried some more pics but to be honest they did not show up anything more than the others. It is a bit tight in teh filler area. When you see the wire in real life it still looks like a single electrical wire with a female connection. The only possible places it could connect would be on bare metal, on the tube clamp. Is there a static earth to the filler? Not sure why though as filler tube is plastic.