ABS fully operational Error or Not Available
â–¶ How to fix
Check the fault codes in the brake system.
What you'll see
No driver-visible symptom recorded.
System reaction
Reduced auxiliary brake function. Auxiliary brake only available through the auxiliary brake lever. The auxiliary brake will not disengage when the accelerator pedal is depressed. The auxiliary brake is disengaged when the hand lever is returned to its top position.
Diagnostic depth
Detection
Continuous monitoring of signal.
Possible cause
ABS fully operational indicates a fault or is unavailable via CAN.