The 2 lights together(1 showing an exclamation mark and the other
showing brake) turned on and wont turn off?? If I turn truck off and
restart and drive it takes it a few minutes before it pops back on. Ive
checked emergency brake and its not the switch sticking and the brake
light switch behind the pedal is not sticking and fluid is full. Any
I would turn the key to ON and watch for the Brake light to flash. If
it does, see if it flashes like a trouble code. There are on-line guides
to ABS trouble codes.
If it does not flash, check a service manual for the brake sensors and
ABS module test.
It could be wire damage to the sensor for the park brake pedal sensor
or ABS sensors.
Actually drove it around today and kept it 35mph and under for an hour
and light does not go on. The second it hits 38 mph the light turns on.
If I turn off truck and drive it to 38 mph it comes on again...??
Do you have 4 wheel abs, or just the rear wheel antilock system?
If you have the rear wheel antilock system, there will be a thin black
box right beside the master cylinder. Unplug both connectors with
the key off and leave them off for at least a minute. Then plug them
back in and see what happens. There were some "false" codes that
would set on those types of systems. If the light returns right away,
then you would need to either have it diagnosed properly or not
worry about it. Rear wheel antilock was a pretty lousy system anyway
in those years.
Hello Ian:) Thanks for the help. I tried it unplugging both of the
plugs and plugged them back in and they came on again when it hit 38
mph. If I leave one of the plugs unplugged everything works the same
but the brake light doesnt come on? What is that box? Do you think it
will damage anything driving around unplugged?? Maybe I will try to
replace that box.... Thanks:)Nel
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.