78 - Foundation Brake

Symptom:
FOUNDATION BRAKE - 78

Test 1-3:

Test 4-6:

When Monitored:
Ignition on.

Set Condition:
Low feedback voltage from the Brake Fluid Level Switch Sense circuit.

POSSIBLE CAUSES
- LOW BRAKE FLUID LEVEL
- BRAKE FLUID LEVEL SWITCH SENSE CIRCUIT SHORT TO GROUND
- BRAKE FLUID LEVEL SWITCH OPEN/SHORT
- BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT OPEN
- CAB - INTERNAL CONCERN
- FOUNDATION BRAKE INTERMITTENT DTC