ABS sensor testing..

Post by **Matty Moo** » 16 Aug 2011, 13:49

Good god, they must use a ton of salt up there. I know they do here and my corrosion isn't even close to that.

Jump the end of the red connector, then test again for continuity.

Post by **LamboSE5** » 17 Aug 2011, 07:16

Matty Moo wrote:Good god, they must use a ton of salt up there. I know they do here and my corrosion isn't even close to that.

Jump the end of the red connector, then test again for continuity.

haha. are you refering to the gross amounts of rust? Yea. I'm surrounded by salt sea air and fog...90% of the time

Oh, and yea, they also use salt on the roads too.

IMG_0396painted.jpg

Post by **Matty Moo** » 17 Aug 2011, 11:13

Correct. Jump there and look for continuity. Post up what happens.

I forgot about the air by the ocean. Still, thats a ton of corrosion.

volvobaggen · Post by **volvobaggen** » 17 Aug 2011, 13:01

That undercarriage looks like it has been picked up from the bottom of the sea after soaking for many years. Even here in Norway where they spray salt for 6 months every winter I have never seen such destruction. Wonder how the area under rear bumper looks like (picture please

)

I have a stolen a swedish drawing of the abs-connector that might be useful for people wanting to test the resistance of the sensors.

VB= rear left
HB= rear right
VF= front left
HF= front right

Post by **LamboSE5** » 17 Aug 2011, 20:04

I'll try n remember to snap a pic tomorrow

Post by **LamboSE5** » 19 Aug 2011, 02:49

At work now so trying to remember.

So I checked the connector/ harness by jumping it Nd measuring from the module pins again. I got the same result on the problem sensor as I did before - no reading on the meter.
I rechecked the readings on both front with same results. The sensors at the wheels both give good readings ( though the riight front gave a high one this time 1600ish ohms).
So I'm driving to work this morn. and I have no speedo! Damn. Does that always mean abs module. Maybe I need to diconnect battery? The abs module is pretty new. And pro rebuilt.

Help, please..?

Post by **LamboSE5** » 19 Aug 2011, 06:15

Here are some pics before I go and see what I can try and do...I can't think of anything left to try though.

IMG_0460.JPG

IMG_0461.JPG

IMG_0462.JPG

IMG_0458.JPG

Post by **LamboSE5** » 21 Aug 2011, 08:03

I jumped the connector at the ABS sensor, then tested for resistence at the ABS module connector. Still nothing...

begovic · Post by **begovic** » 22 Aug 2011, 16:59

You have broken wire.
Try to find damaged portion of cable.

Post by **LamboSE5** » 26 Aug 2011, 06:51

The wires snapped/cracked off at the connector. After I did control arms at some point I happened. So I hope it was cracked to begin with and then just gave out. I'll replace the harness/connector when I get the money too and I hope that solves it.

ABS sensor testing..

Re: ABS sensor testing..