BW8207 Bendix Global Scalable Brake Control (GSBC) System Operator’s Manual 38
BENDIX GSBC SYSTEM TROUBLESHOOTING CONT.
TEST 2: REVERSE VALIDATION TEST CONT.
Test Procedure (cont.)
6. After 90 seconds since the vehicle was locked, enter the vehicle.
7. Start the vehicle.
8. When the dashboard displays “Test Not Started Fully Depress Brake
Pedal and Release Parking Brake,” follow the instructions on the
dashboard to complete the test.
C. The test failed because an issue with the braking system was detected.
• If the fault is conrmed, “Test Completed Error Remaining” will be
displayed. The test was conducted successfully, but the detected
fault re-occurred. The vehicle must be serviced by a qualied
technician.
• No warning lamps will be cleared and the same warning lamps that
were on prior to this test will remain illuminated.
• No DTCs will be cleared.
Test Procedure (Pass/Fail Criteria)
Passage of Test: If the Reverse (Validation) Test completes successfully, the vehicle
can be driven normally. The plausibility fault has been cleared, and any warning
lamps related to that fault will be cleared.
The Reverse (Validation) Test will not clear all the faults on the brake controller,
only those faults related to pressure plausibility. If the Reverse (Validation)
Test completes successfully but warning lamps remain illuminated on the
dashboard, faults unrelated to pressure plausibility are present and must be
diagnosed by a qualied technician.
Failure of Test: If the test conrms the presence of a pressure plausibility fault,
any plausibility faults that were previously active will remain active. This will be a
persistent fault between key and power cycles and required service to be corrected.
Refer to the GSBC Dash Display Indicator Lamps and Operation - Faulted section on
page 15 for more information about warning lamps.
If the Reverse (Validation) Test fails, the vehicle must be immediately serviced by a
qualied technician. Failure of the Reverse (Validation) Test indicates a signicant
problem with the brake system, and the vehicle must not be operated until the
problem is diagnosed and corrected.
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