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Questions and Answers

Ford Ranger ABS Light

Q. Good evening sir, I have a 1993 Ford Ranger XLT 2WD, 133,000 miles, 3.0 liter V-6, 5-speed manual transmission, fuel injected and ABS brakes. I have an ABS light that comes on after two or three stops then stays on, or it'll stay off for a week or so and then it stays on constantly.

I'm baffled and I was wondering if you had an idea what it might be and how I would go about fixing it.

Thanks,
Will
Boise, Idaho

A. Okay, first thing we have to do is yank the codes out of the Rear Anti-Lock Brakes (RABS) control unit. To do that:

  1. Ensure ignition switch is in RUN position with engine off
  2. Locate the black RABS II diagnostic connector. Disconnect two halves of the connector (one side has an orange/black wire attached to it).
  3. Attach a jumper wire to the orange/black wire side of the connector. Momentarily ground the opposite end of jumper for 1-2 seconds.
  4. The "REAR ABS" lamp should start flashing a trouble code.
  5. Trouble codes consist of a number of short flashes and ends with one long flash. Count short and long flashes to obtain the trouble code. Codes are from 2 to 12.
  6. Trouble code will repeat until key is turned off. Trouble code 16 indicates normal system operation.
  7. To clear the RABS II trouble code memory, turn the ignition Off while the diagnostic connector halves are separated.

The RABS diagnostic connector is located on the main wire bundle inside of the cab under the dash, slightly aft of the 53 pin connector, driver's side.

Once we know what the codes are, we can figure out how to fix it.

Additional Information provided courtesy of ALLDATA

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