What causes abs code 78 ? Foundation Brake incident an what does it entail.

 

What year is your truck?

 

01 dakota 3.9,2wd.Automatic .

 

2 or 4 wheel ABS?

Not a lot of info out there on this one. Is the Brake Light on as well?

 

I found out it can be related to fluid level and or brake switch.I reset it after refil ,was low on bleed,an also had 81- switch.
It cleared-78- after refil reset but 81still there- easy fix.
Must be fluid level code.
-Thereare some posts that say the switch on the parking brake that indicates the parking brake is set can become misadjustedand cause this code.

Also found this.

FOUNDATION BRAKE When Monitored: Ignition on. Set Condition: Low feedback voltage from the Brake Fluid Level Switch Sense circuit. The above criteria satisfied for 1.0 second. Possible causes LOW BRAKE FLUID LEVEL BRAKE FLUID LEVEL SWITCH SENSE CIRCUIT SHORTED TO GROUND BRAKE FLUID LEVEL SWITCH OPEN BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT OPEN CAB - INTERNAL CONCERN FOUNDATION BRAKE INTERMITTENT DTC