abs problem
#1
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abs problem
ok, the two abs lights in the center of the instrument cluster stay on all the time. where would be a good place to start looking for the problem?
i haven't driven the car at any speeds yet or any distance, so i don't have any other symptoms to go by yet.
i haven't driven the car at any speeds yet or any distance, so i don't have any other symptoms to go by yet.
#2
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if both lights, red and orange, are on it is quite aserious problem.
things like sensors will only bring on the orange light once moving. red light as well is possibly a power failure to the ecu or something (possible missing/broken fuse or relay
on the other hand, a low fluid level, or disconnected fluid level switch, can do the same and is a simple fix
things like sensors will only bring on the orange light once moving. red light as well is possibly a power failure to the ecu or something (possible missing/broken fuse or relay
on the other hand, a low fluid level, or disconnected fluid level switch, can do the same and is a simple fix
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3 doors have an engine management light as well iirc
the other light could be a brake pad warning light that is no redundant if you've fitted cossie running gear to a xr4i
abs fault is probably down to a dodgy connection if it comes on as soon as u start the car.
the other light could be a brake pad warning light that is no redundant if you've fitted cossie running gear to a xr4i
abs fault is probably down to a dodgy connection if it comes on as soon as u start the car.
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these are the two lights i'm talking about. they come on whne the car is started and they stay on all the time. no other lights come on when i hit the brakes.
#11
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normally there is just one light there - looks like it's been converted to LED's as the standard bulb is a ford only part
for those to come on immediately and not go off after 10 seconds indicates a permanent fault, rather than something intermittent like a sensor/ring gear.
check that all sensors are plugged in and check the resistance across each sensor by removing the multiplug from the ecu and opening it up
what does the pedal feel like during driving? if normal, then it indicates that the pump is fine and getting up to pressure. presumably you hear the pump come on when you go to key position 1 for about 10 seconds, switiching off when it achieves pressure?
for those to come on immediately and not go off after 10 seconds indicates a permanent fault, rather than something intermittent like a sensor/ring gear.
check that all sensors are plugged in and check the resistance across each sensor by removing the multiplug from the ecu and opening it up
what does the pedal feel like during driving? if normal, then it indicates that the pump is fine and getting up to pressure. presumably you hear the pump come on when you go to key position 1 for about 10 seconds, switiching off when it achieves pressure?
#13
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then i suspect that you have a broken sensor or wire which should be relatively easy to rectify
when you open up the 'hair brush' multiplug, the sensor cables are easy to pick out as they are shielded
when you open up the 'hair brush' multiplug, the sensor cables are easy to pick out as they are shielded
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Originally Posted by foreigneRS
normally there is just one light there - looks like it's been converted to LED's as the standard bulb is a ford only part
for those to come on immediately and not go off after 10 seconds indicates a permanent fault, rather than something intermittent like a sensor/ring gear.
check that all sensors are plugged in and check the resistance across each sensor by removing the multiplug from the ecu and opening it up
what does the pedal feel like during driving? if normal, then it indicates that the pump is fine and getting up to pressure. presumably you hear the pump come on when you go to key position 1 for about 10 seconds, switiching off when it achieves pressure?
for those to come on immediately and not go off after 10 seconds indicates a permanent fault, rather than something intermittent like a sensor/ring gear.
check that all sensors are plugged in and check the resistance across each sensor by removing the multiplug from the ecu and opening it up
what does the pedal feel like during driving? if normal, then it indicates that the pump is fine and getting up to pressure. presumably you hear the pump come on when you go to key position 1 for about 10 seconds, switiching off when it achieves pressure?
3 doors have 2 small LED's only saphs have 1 single bulb light
check all ABS sensors and try remove them from the hubs and make sure they aren't worn & damaged
#17
I had the same problem on my sapph cos, and drove 5 miles to MOT with the light on, had to go as was expecting a fail on other things anyway.
The brakes/pump worked 100% fine, after it had been turned on/off a few times lights started behaving, and have been fine since.
Not much use I know, but a wiggle might be worth a try ?
tabetha
The brakes/pump worked 100% fine, after it had been turned on/off a few times lights started behaving, and have been fine since.
Not much use I know, but a wiggle might be worth a try ?
tabetha
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found my problem. i have a bad front n/s sensor. it is reading infinite ohms when doing a resistance check and it reads only 90mV when spinning the wheel and checking the voltage. the other three sensors all read 1k ohms and about 1v when spinning the wheels.
will go to the junkyard soona nd get several sensors form scorpios to test and install.
will go to the junkyard soona nd get several sensors form scorpios to test and install.
#20
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the early abs system is a little different ot the later systems in terms of how it works and is set up
but the granada sensors do work in the sierra loom, if oyu get the scorpio ones they have different plugs on the end and it's not possible to convert them over
but the granada sensors do work in the sierra loom, if oyu get the scorpio ones they have different plugs on the end and it's not possible to convert them over
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hmm, different connectors eh? changing connectors on a piece of coax cable isn't particularly too difficult. just a matter of finding the right connector.
i'll let you all know how it goes.
i'll let you all know how it goes.
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that's close but slightly off.
pull the plug and check resistance from the center conductor to the shield. that should be 800 to 1400 ohms.
then switch your multimeter to volts AC and check the same places while spinnning the wheel. it should read 2VAC according to my scorpio abs troubleshooting manual (which is all i have to go by). i was actually reading 1VAC at each sensor, except the bad one, i was reading about 80 to 90mVAC.
i think that as long as the shield conductor isn't aluminum, that i can probably cut and splice and rebuild a scorpio sensor with a cossie connector. i don't think the frequency is high enough for the impedance mismatch to be to horribly relevant. besides i think it's shielded to keep out out emi noise rather than to keep rf losses down.
pull the plug and check resistance from the center conductor to the shield. that should be 800 to 1400 ohms.
then switch your multimeter to volts AC and check the same places while spinnning the wheel. it should read 2VAC according to my scorpio abs troubleshooting manual (which is all i have to go by). i was actually reading 1VAC at each sensor, except the bad one, i was reading about 80 to 90mVAC.
i think that as long as the shield conductor isn't aluminum, that i can probably cut and splice and rebuild a scorpio sensor with a cossie connector. i don't think the frequency is high enough for the impedance mismatch to be to horribly relevant. besides i think it's shielded to keep out out emi noise rather than to keep rf losses down.
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