ABS Light

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Old Feb 29, 2004 | 12:50 PM
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ABS Light

HI Everyone'''''
My ABS light came on ,and what I have read from this form.Is that the problem most of the time is the rear wheel sensor.I found the sensor on my 2000 F150 1/2 ton rearend.
But could anyone tell me how to change it?From what I saw ,theres no bolt .Looks like it just plugs into the rearend.
Haven't tried to take it off yet,today it's raining and my shade tree is of no use.
Thanks
 
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Old Feb 29, 2004 | 11:07 PM
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Roger does truck have just rear ABS or 4wheel ABS? If 4 wheel Abs it could be any of the 3 sensors. If you have an OHM meter and tell me if truck is 4x2 or 4x4 I will post resistence values for sensors. Rear sensors are about 20 bucks from FORD, but its still just a shot in the dark.
 
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Old Mar 1, 2004 | 01:06 AM
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Hey,

Thanks Stan/SRmaster for the info,I'm not sure if the truck has just rear ABS or 4 wheel ABS.The truck is 2 wheel drive with Drum old style breaks on rear,not the disc type.
Maybe I should get a OHM meter,before I start buying parts.I have never use a OHM meter,but I know someone who works with OHM meters at work, checking elect. motors out.
I looked at the rear in again,and theres one nut at the top of the sensor.Had to feel on top of the rear end to find it, couldn't see it .
Hope the 20.00 buck part is it .Will post to let you know what happens.
roger2000
 
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Old Mar 9, 2004 | 02:56 PM
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From: Houston TX USA -> San Jose CA -> Houston
I have the same prob

Mine is a '99 F150 XL Reg Cab 4x2 v6. It has rear ABS. After replacing my pads, I got the ABS light turned on. 1 week later, I flushed my brake system and still have the light. What sensor is it and where should I look? I have an Ohm meter also.

Regards
Toan
 
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Old Mar 9, 2004 | 10:36 PM
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The abs speed sensor is located right on top of rear diff.The resistence of this sensor should be 800 to 3500 ohms. If resistence is in specs, then locate the diagnostic connerctor(right under glove box)and follow this procedure.Verify the ignition switch is in the RUN position (engine does not need to be running). Next, locate the black RABS diagnostic connector C207. The diagnostic connector C207 has two mating halves, one of which has a black/orange (BK/OG) wire connected to it. Disconnect the two halves.

Attach one end of a jumper wire to the black/orange (BK/OG) wire side of the diagnostic connector C207. Ground the opposite end of the jumper wire by connecting it to a ground until the ABS light begins to flash. Grounding this wire should start the yellow ABS warning indicator flashing. If grounding this wire does not start the yellow ABS warning indicator flashing, go to the Symptom Chart.
IF it flashes a code post it here.
 
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Old Mar 29, 2004 | 09:10 PM
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flashing ABS light with burned fuses

My 98 F150's ABS fuse often burns out. The ABS light subsequently flashes and after placing the truck into park, I cannot take it out of park until I replace the fuse. It may go a while (a week, a month, a minute or two) and the fuse burns again...starting the process all over again.

The Ford dealership mechanics cannot trace the problem saying the ABS system, like the airbag system, does not store fault codes. Therefore, their diagnostic system cannot determine a fault code. They offered me no solution other than keep replacing the fuses (lovely!) Well, I've replaced about 10 fuses in the past month alone and these things are expensive...much less annoying to replace.

I could really use some help with this. Thanks.
 
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Old Mar 30, 2004 | 03:47 AM
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Bly do you have a cap on your truck? if so check to see if the taillamp brake light wires are shorting out. becuase the fuse is using the brake circuit for the shift interlock thats the reason it wont come out of park when it blows the fuse.

and check to make sure all your brake lights are working while you back there.
 
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Old Mar 31, 2004 | 10:20 PM
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Mr Bentwrench,
Wow, perhaps this IS the problem. I do have a cap but it's been off the truck for about three years, stored away. While it was on the truck, the wires were tied in to the brake lights with a splice. I suppose when I removed the splice, I left exposed brake light wiring and through normal vehicle vibration is shorting out against the body. That would explain the intermittent nature of the blown fuses.
At my first opportunity, I'm cracking that tail light housing open and checking this out.
Many thanks. Hope this is the answer.
Blythesonline
 
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Old Apr 6, 2004 | 05:42 PM
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Originally posted by STAN/SRMASTER
The abs speed sensor is located right on top of rear diff.The resistence of this sensor should be 800 to 3500 ohms. If resistence is in specs, then locate the diagnostic connerctor(right under glove box)and follow this procedure.Verify the ignition switch is in the RUN position (engine does not need to be running). Next, locate the black RABS diagnostic connector C207. The diagnostic connector C207 has two mating halves, one of which has a black/orange (BK/OG) wire connected to it. Disconnect the two halves.

Attach one end of a jumper wire to the black/orange (BK/OG) wire side of the diagnostic connector C207. Ground the opposite end of the jumper wire by connecting it to a ground until the ABS light begins to flash. Grounding this wire should start the yellow ABS warning indicator flashing. If grounding this wire does not start the yellow ABS warning indicator flashing, go to the Symptom Chart.
IF it flashes a code post it here.
Stan I have a 2000 F-150, 2 wheel drive w/rear abs. I can't find the C207 connector; I looked under the glove box. What does the connector look like? How many wires in and out? Thanks John
 
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Old Apr 7, 2004 | 09:54 AM
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Symptom Chart ? where can I find this posted ?
 
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Old Apr 7, 2004 | 11:27 AM
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Originally posted by jc101
Symptom Chart ? where can I find this posted ?
The Symptom chart is in the service manual. John
 
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Old Apr 7, 2004 | 10:52 PM
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Shop manual shows C207 location somewhere behind right side of dash or behind right side kick panel.They a usually right under glove box. It only has 2 wires red & black/orange.
 
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Old Apr 7, 2004 | 11:11 PM
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If your truck has 4 wheel abs it won't have C207 and you will need a scan tool to pull codes
 
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Old Apr 8, 2004 | 04:20 PM
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Thanks for the info. I do have 4 wheel ABS. However I did find the connector behind the right kick panel; but finding it was no help you can't pull any code there w/ 4 wheel ABS. I guess I will have to find a scan tool. John
 
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Old Oct 19, 2007 | 08:25 PM
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Originally Posted by lechnereighty
The Symptom chart is in the service manual. John
that's not "where it's posted" it's one source... nobody has a list of the codes?
 
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