Hi all, Step daughters 2004 focus 1600 abs light is on. She took it to local tyre depot place who diagnosed NSF sender. Changed for a new one and thought I had fixed it as went round the block and light went out.
She drove home and rang saying light came on after about 2 miles again.
Going down there on Thursday to give it another looking over.
Has anybody anything else I can check? Going to check fluid level and sensor whilst there.
Many thanks Barrie.

 

have you had the drums off the back recently or had any work done to rear brakes?

 

Was sensor replaced or cleaned? If replaced was it OE or pattern, I've had no end of aggro with pattern bits the last couple of years.

 

Hi and thanks for the replies.
1) No not done anything at the back.
2) Replaced with pattern part although tried cleaning the orig 1st with similar results ie light went out then came back on again.

Just thinking, do the sensors pick up from the bearing and if so can it be dirt and how do you clean them? I am more used to gear type of abs ring.
Think I may try cleaning all the sensors starting with fronts.Is there a test for the sensors using a multi meter?
Thanks again Barrie.

 

There are magnets behind the inner seal of the front wheel bearings.

Could be a wiring issue from the sensor plug back to the module.

Check the wiring and multiplugs.

 

Jack each wheel up one by one pull off the plug, and use an ohmmeter to check to see if its pulsating when you spin the wheel your testing, if all is well then its further up the loom/module

 

Thanks all for the replies. when checking do I look for a small voltage from the sensor?
Cheers Barrie

 

No if you disconnect the plug it should have 2 pins so just use the + & - and have it on ohms(resistance) and it should switch from about 2/3k to near enough 0 give or take depending on make/Model

 

Many thanks Gingerturbo

 

No worries

 

These should have voltage to the sensors from the loom.