7 BW8207 Bendix Global Scalable Brake Control (GSBC) System Operator’s Manual
TRUCK CHASSIS MODIFICATIONS
If the vehicle’s chassis components are altered, (for example, a wheel base extension
or reduction; tag axle addition or removal; a major body change such as conversion
of a tractor into a truck; or an axle, suspension, or steering system component
modication) the GSBC® ECU must be updated to reect these changes. Contact
your OE vehicle manufacturer prior to making any modications to your vehicle.
If you modify your vehicle and do not update the GSBC ECU, the GSBC system
may fail to function as intended. Serious vehicle braking and performance
issues could result, including unnecessary ESP system interventions, exceeding
regulated stopping distance, and/or system faults leading to loss of electronic
functions. These types of failures can lead to a loss-of-control of the vehicle,
potential collisions, property damage, serious injuries, or death.
If replacement tires are used that are a dierent diameter from the OEM-
specied tire size, the brake control system must be updated with the new
tire size using the appropriate diagnostic tool. Contact your OE for more
information.
VEHICLE INSPECTION
For experienced drivers familiar with Bendix brake control systems, a pre- or post-trip
inspection on a vehicle with GSBC is similar to the inspection procedure for previous
Bendix systems. For a thorough inspection procedure for a Bendix air brake system,
refer to the following documents. For new information specic to the Bendix GSBC
system, refer to the information on page 8.
• BW2676 (for components located outside the cab)
• BW2677 (for components located inside the cab)
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