how do i shut off the break and abs light form the dash board of my 94 B4000 ? locked up the breaks about a week ago nothing wrong with them but cant get the light to shut off. help please gonna trade it in on a new one this week

 

Welcome to FTE!!!

The light is indicating a problem you need to pull the code and then run the pinpoint test to determine the exact problem. I'm not sure what system they used on the 1994s but this write-up I did should help you with the problem.

Rear Anti-Loock Brakes

Before you start pulling the code always checks the fluid level, the MC float is not sticking, the RABS valve, sensor and float connectors are not corroded and the back brakes are adjusted correctly and the parking brake is working correctly.

RABS I
The RABS light must be on to obtain the DTC and the key can not be turned off or the DTC will be lost. Attach a jumper wire to the diagnostic connector (BL/OR) which is under the drivers dash and ground it , when the ground is broken the RABS light will begin to flash the DTC. You will have a DTC between 2 and 15.

RABS II
For 4WD vehicles, shift into 2WD, place the shift lever in PARK for automatic transmissions and NEUTRAL for manual transmissions. Turn the ignition OFF, set the parking brake and turn on the running lamps. Care must be taken to connect only the (BK/OG) stripe wire to ground. Connecting the mating connector wire to ground will result in a blown fuse. The ignition switch must be in the RUN position (engine does not need to be running), before disconnecting the RAB II diagnostic connector or the diagnostic trouble codes will be erased. Next, locate the black RABS II diagnostic connector. The diagnostic has two mating halves, one of which has a (BK/OG) wire. Disconnect the diagnostic connector. Attach one end of a jumper wire with a 10A in?line fuse to the (BK/OG) wire side of the diagnostic connector. Ground the opposite end of the jumper wire until the ABS light begins to flash. Grounding the (BK/OG) wire starts the yellow ABS warning indicator flashing. A DTC 16 is obtained when the anti?lock brake control module detects normal system operation. To clear the code turn off the ignition while the diagnostic connector is separated

Codes
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 DTC 4.

 

Does anyone know what RABS DTC's 2 thru 15 mean?

I know that 16 means that the RABS is functioning properly.


Thanks

 

if all your going to do is trade it in try disconnecting the battery for a while.This might turn it off long enough to trade it in

 

I'm confused, Not to be picky or anything but shouldn't the above paragragh read as follows:

"RABS I
The ABS light must be on to obtain the DTC and the key can not be turned off or the DTC will be lost. Attach a jumper wire to the OBD II diagnostic connector (BL/OR) which is under the drivers dash and ground it , when the ground is broken the ABS light will begin to flash the DTC. You will have a DTC between 2 and 15. You should get a DTC 16 if your RABS is working properly."


What I mean is this, my 2000 ranger has two diagnostic connectors. One is for the RABS diagnostics (RH engine compartment next to brake proportional valve) and one is for the OBD II diagnostics (under the steering column). The (BL/OR) wire is in the OBD II diagnostics connector under the drivers dash as you mentioned, no problem.

My questions are:

Can I pull ABS codes on my 2000 ranger from the OBD II diagnostic connector as well, with the procedure above?

Are RABS I & II DTC codes the same?

What are the code definitions? (My haynes manual is scared of ABS)

P.S. I read somewhere while looking for an OBD II code reader/scanner that vendors do not support ABS DTC because of liability issues. I realize that doesn't mean I can't do the above procedure, however. Sort of a legacy ford thing and ford dealers probably use third party readers and scanners.

Am I right with what I'm saying here?

Thanks for the help

 

The section you quoted is for older trucks without ODBII.

If you have ABS you can only get the codes from the ODBII, I beleive RABS is only from the RABS system.

In general the codes for the older and new RABS systems are very similar.