F 350 4WD Pickup V8-7.3L DSL Turbo VIN F (1994)
ABS Diode: Description and Operation
PURPOSE
The system diode enables the ABS warning light to illuminate when ignition is ON and the system is disabled by switching the system relay to the
default position.
OPERATION
The system diode is actually a diode/resistor element. The diode/resistor element prevents a false Code 12 from being set when the parking brake
is applied.
