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IIRC, its the system pass code, but I'll try to verify that when I get a chance to look. Cheers!
 

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Verified:
  • Yellow Rear ABS Warning Light Flashes 16 Times When Retrieving Diagnostic Trouble Codes (Code 16)
  • No codes stored in anti-lock electronic control module.
  • STOP. Rear anti-lock brake system functioning properly.
 

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If it is flashing you still have a problem

Are you working on a OBS truck?

Do you have other problems?

It isn't good to revive a 8 year old thread and not give any information about the problems that you are having

Sent from my SM-J737V using Tapatalk
 

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It is an OBS truck. The vacuum pump failed but I already replaced that and now the brakes are working fine. I grounded the RABS wire to get the code and I followed the procedure to clear the code which came from one of Patrick's posts. Usually the ABS light doesn't start flashing right when I turn the truck on or even when I first brake. It takes a few minutes but it comes on every time.
 

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Here's the Symptom from the service manual:
  • Yellow Rear ABS Warning Light Self Check OK, but Light Automatically Begins Flashing
  • Intermittent anti-lock electronic control module.
  • Intermittent anti-lock electronic control module ground circuit.
  • Intermittent yellow rear ABS warning light circuit.
  • Blown Keep-Alive Memory fuse.
I've attached the Pinpoint Test D text for you. Here's a link to the section of the service manual: 1997 F-250/350/Super Duty
Cheers!
 

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