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Questions and Answers

Ford Ranger ABS Light

Q. I have a 1997 Ford Ranger 2WD and sometimes when I drive the antilock indicator light comes on. That don't happen very often. I may drive for two weeks and the light never can come on, or drive for one mile and here it is. Also as soon as the light comes on and I stop the car and turn off the motor and I restart it, it will go off and won't come on.

Ford Ranger ABS Light

Any ideas? Thank you for taking the time to read my question.


A. Once the ABS light comes a code is stored. Regardless of the light being on or off, the code will still be there. So we have to pull that code. Here's how to do it:


Power Disruption:
If the yellow REAR ABS warning light begins to flash, this indicates that the Keep-alive Memory (KAM) power to the anti-lock electronic control module has been disrupted.

NOTE: Verify the ignition switch is in the RUN position (engine does not need to be running). Next, locate the black RABS II diagnostic connector.

Mating Halves:
The diagnostic connector has two mating halves (one of which has a black/orange wire connected to it). Disconnect the two halves.

  1. Attach one end of a jumper wire to the black with orange stripe wire side of the diagnostic connector. NOTE: Grounding this wire should start the REAR ABS lamp flashing. If grounding this wire does not start the REAR ABS lamp flashing, go to System Pre-Check Test D, Yellow REAR ABS Light Self-Check OK, but No Diagnostic Trouble Code When Diagnostics started.
  2. Momentarily ground the opposite end of the jumper wire by connecting it to a good chassis ground for 1-2 seconds. CAUTION: Care must be taken to connect only the black/orange stripe wire to ground. Connecting the mating connector wire to ground will result in a blown fuse.

    Counting Flashs: The code consists of a number of short flashes and ends with a long flash. Count the short flashes and include the following long flash in the count to obtain the code number. For example, three short flashes followed by one long flash indicates diagnostic trouble Code 4.

    The code will continue to repeat itself until the key is turned off. It is recommended that the code be verified by reading it several times. This code will be used later for system repair instructions, it should be written down for future use. A diagnostic trouble code of 16 will be obtained when the module detects normal system operation.

Once we have the code(s) we will have a place to start looking.

Additional Information provided courtesy of ALLDATA

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