Pulling RABS codes on 89-90 B2
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Pulling RABS codes on 89-90 B2
I am new to the list and have been searching for
the tech info on pulling the RABS codes for my
89 Bronco II. I'm having the tipical intermittant
anti-lock brake light, park brake light and pedal
fade (no rear brakes ) problems that I have read
so many threads about. I have no leaks in the
system, new pads and shoes. I found the
procedure for the 2000 RABS, but the older link
was inoperative. I would really appreciate some
tech information on how to pull these codes and
as a last ditch effort, How to by-pass the ABS
system. Thanks for your time.
Brett
the tech info on pulling the RABS codes for my
89 Bronco II. I'm having the tipical intermittant
anti-lock brake light, park brake light and pedal
fade (no rear brakes ) problems that I have read
so many threads about. I have no leaks in the
system, new pads and shoes. I found the
procedure for the 2000 RABS, but the older link
was inoperative. I would really appreciate some
tech information on how to pull these codes and
as a last ditch effort, How to by-pass the ABS
system. Thanks for your time.
Brett
Post Fiend
Joined: Dec 2001
Posts: 10,562
Likes: 4
From: South Jersey
The link worked for me, this is what you need...
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.
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.
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.
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.
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