abs warning light?

M

Mr random 101

Hi I have an old 99 almera and an abs warning light has come up on my dashboard. Using the pin method I have managed to get it to flash out an error code 55.(five long flashes and five short). On the net the code comes out as rear left hand outlet of solenoid valve.

I have not been able to find anything useful on the web or find a reference in my haynes manual. Has anyone got some suggestions as to what the exact problem is and how I fix it?
 
I think someone on here (@wraith maybe) had some success with an eBay sensor.

-phone-
 
That was for knackered sensors, his fault is with the solenoid. I wouldn't know where to start with that.
 
If I could find out where it was that would be a start. The only ref I can find in the haynes manual is for the exhaust/emissions system???
 
I assume the solenoid is/is part of the box at the back right of the engine bay with all the brake lines coming out of it.

No idea how serviceable that is though,

-phone-
 
I had a quick chat with some quick fit blokes. They say that the rear left hand outlet of solenoid valve is to do with the exhaust system, not the abs. So the error code I got is a red herring. (and to prove it the exhaust now has a hole in it) so I am back to the start. Looks like it could be a dodgy sensor, wiring etc. Anyone have any ideas where I could start, I have heard that i could check the sensors with a multi meter?
 
So I have checked the all the sensors and found an odd reading on the front right sensor. It counts up ohms until it goes of the scale. Checked it again today and I can't get a reading out of it.

I have attempted to get the sensor off but its welded solid and my number 12 socket does not quite fit (it spins around the edge of the nut) and 11 does not fit.

Any suggestions for getting the bolt off? I have tried soaking it in wd40.
 
have you tried replacing the fuse? i had problem on my old primera abs worked intermittently light came on and off at random fuse seemed fine but changing it solved the problem
 
Mr random 101 said:
I swapped it with one of the spares to check. No joy
Click to expand...

My cousin saved the day, 5 seconds with an extender bar and a 8point socket instead of the12point i was using and it came straight off.

Shame the sensor was not so easy. It was wedged tight and snapped off half way. We had to dig it out it took ages.

The hard part was trying to find a new sensor. I tried 7 different suppliers and had to go mail order. Lets hope it turns up in time for the mot.
 
I while waiting for the sensor to turn up, I wanted to check that it definitely was the sensor. I measured the resistance of the good sensor and used some resisters to fool the ecu into thinking the broken sensor was still there.

I managed to get the abs light to go out so I assume that I don't have any other abs problems.
 
The part arrived in time and it was just a case of removal. The main sensor I had removed by digging it out after it snapped off. It was just a case of removing the bolts and swapping the sensor wiring over. As usual easier said than done. The last bolt was wedged solid and then snapped off. I also had a sense of humor failure when it looked like the new sensor would not fit in the wheel hub. Fortunately it was just a case of being brave and tapping it in with a rubber mallet.

Once fitted the abs light went straight out, and now I have a new mot. sorted! :-)

So in summary I tested all the sensors with a multi meter. Spotted that one was giving me a reading of infinity. I checked to see if the abs light went out. I did this by attaching some registers to the wiring going to the ecu. I had to match the resistance of the working sensor. It did. Then I swapped the sensor for a new one. The sensor was very hard to get out and needed to be dug out and the hole in the hub cleaned using a small drill and sand paper. The new sensor needed to be gently tapped in place with a rubber mallet. Sorted.
 
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