NHTSA ID Number: 11016934
Manufacturer Communication Number: SD-27-5023V
TSB/Document Date: 2025-04-10
Summary
Bendix
GSBC (Global Scalable Brake Control) System and EBS-90 Electronic Control Unit (ECU) service data sheets.
SD-27-5031
0x50D212
20690
18
EPM3, PCL1, Inlet Solenoid
Valve: Circuit Short To
Battery
EPM internal electrical failure.
SD-27-5031
0x50D218
20690
24
EPM3, PCL1, Inlet Solenoid
Valve: Circuit Current Below
Threshold
EPM internal electrical failure.
SD-27-5031
0x50D22B
20690
43
EPM3, PCL1, Inlet Solenoid
Valve: Signal Cross Coupled
EPM internal electrical failure.
SD-27-5031
0x50D271
20690
113
EPM3, PCL1, Inlet Solenoid
Valve: Actuator Stuck
Measured EPM pressure response not
sufficient given the system reported reservoir
pressure.
SD-27-5031
0x50D311
20691
17
EPM0, PCL0, Outlet
Solenoid Valve: Circuit Short
To Ground
EPM internal electrical failure.
SD-27-5031
0x50D312
20691
18
EPM0, PCL0, Outlet
Solenoid Valve: Circuit Short
To Battery
EPM internal electrical failure.
SD-27-5031
0x50D318
20691
24
EPM0, PCL0, Outlet
Solenoid Valve: Circuit
Current Below Threshold
EPM internal electrical failure.
SD-27-5031
0x50D32B
20691
43
EPM0, PCL0, Outlet
Solenoid Valve: Signal Cross
Coupled
EPM internal electrical failure.
SD-27-5031
0x50D371
20691
113
EPM0, PCL0, Outlet
Solenoid Valve: Actuator
Stuck
Fault set if EPM detects trapped pressure.
Fault could be in FBM, EPM, or related
plumbing.
SD-27-5031
Table 20 - GSBC EPM-90 Diagnostic Trouble Codes (DTCs)
SD-27-5023V Rev 000 Bendix® GSBC® System and EBS-90™ (Global Scalable Brake Control System and Electronic Control Unit)
59
Troubleshooting
GSBC EPM-90 DTCS
DTC #
SPN
(J1939)
FMI
(J1939)
DTC NAME
DTC DESCRIPTION
SD SHEET
0x50D411
20692
17
EPM0, PCL1, Outlet
Solenoid Valve: Circuit Short
To Ground
EPM internal electrical failure.
SD-27-5031
0x50D412
20692
18
EPM0, PCL1, Outlet
Solenoid Valve: Circuit Short
To Battery
EPM internal electrical failure.
SD-27-5031
0x50D418
20692
24
EPM0, PCL1, Outlet
Solenoid Valve: Circuit
Current Below Threshold
EPM internal electrical failure.
SD-27-5031
0x50D42B
20692
43
EPM0, PCL1, Outlet
Solenoid Valve: Signal Cross
Coupled
EPM internal electrical failure.
SD-27-5031
0x50D471
20692
113
EPM0, PCL1, Outlet
Solenoid Valve: Actuator
Stuck
Fault set if EPM detects trapped pressure.
Fault could be in FBM, EPM, or related
plumbing.
SD-27-5031
0x50D511
20693
17
EPM1, PCL0, Outlet
Solenoid Valve: Circuit Short
To Ground
EPM internal electrical failure.
SD-27-5031
0x50D512
20693
18
EPM1, PCL0, Outlet
Solenoid Valve: Circuit Short
To Battery
EPM internal electrical failure.
SD-27-5031
0x50D518
20693
24
EPM1, PCL0, Outlet
Solenoid Valve: Circuit
Current Below Threshold
EPM internal electrical failure.
SD-27-5031
0x50D52B
20693
43
EPM1, PCL0, Outlet
Solenoid Valve: Signal Cross
Coupled
EPM internal electrical failure.
SD-27-5031
0x50D571
20693
113
EPM1, PCL0, Outlet
Solenoid Valve: Actuator
Stuck
Fault set if EPM detects trapped pressure.
Fault could be in FBM, EPM, or related
plumbing.
SD-27-5031
0x50D611
20694
17
EPM1, PCL1, Outlet
Solenoid Valve: Circuit Short
To Ground
EPM internal electrical failure.
SD-27-5031
0x50D612
20694
18
EPM1, PCL1, Outlet
Solenoid Valve: Circuit Short
To Battery
EPM internal electrical failure.
SD-27-5031
0x50D618
20694
24
EPM1, PCL1, Outlet
Solenoid Valve: Circuit
Current Below Threshold
EPM internal electrical failure.
SD-27-5031
0x50D62B
20694
43
EPM1, PCL1, Outlet
Solenoid Valve: Signal Cross
Coupled
EPM internal electrical failure.
SD-27-5031
0x50D671
20694
113
EPM1, PCL1, Outlet
Solenoid Valve: Actuator
Stuck
Fault set if EPM detects trapped pressure.
Fault could be in FBM, EPM, or related
plumbing.
SD-27-5031
0x50D711
20695
17
EPM2, PCL0, Outlet
Solenoid Valve: Circuit Short
To Ground
EPM internal electrical failure.
SD-27-5031
0x50D712
20695
18
EPM2, PCL0, Outlet
Solenoid Valve: Circuit Short
To Battery
EPM internal electrical failure.
SD-27-5031
0x50D718
20695
24
EPM2, PCL0, Outlet
Solenoid Valve: Circuit
Current Below Threshold
EPM internal electrical failure.
SD-27-5031
0x50D72B
20695
43
EPM2, PCL0, Outlet
Solenoid Valve: Signal Cross
Coupled
EPM internal electrical failure.
SD-27-5031
Table 20 - GSBC EPM-90 Diagnostic Trouble Codes (DTCs)
60
SD-27-5023V Rev 000 Bendix® GSBC® System and EBS-90™ (Global Scalable Brake Control System and Electronic Control Unit)
Troubleshooting
GSBC EPM-90 DTCS
DTC #
SPN
(J1939)
FMI
(J1939)
DTC NAME
DTC DESCRIPTION
SD SHEET
0x50D811
20696
17
EPM2, PCL1, Outlet
Solenoid Valve: Circuit Short
To Ground
EPM internal electrical failure.
SD-27-5031
0x50D812
20696
18
EPM2, PCL1, Outlet
Solenoid Valve: Circuit Short
To Battery
EPM internal electrical failure.
SD-27-5031
0x50D818
20696
24
EPM2, PCL1, Outlet
Solenoid Valve: Circuit
Current Below Threshold
EPM internal electrical failure.
SD-27-5031
0x50D82B
20696
43
EPM2, PCL1, Outlet
Solenoid Valve: Signal Cross
Coupled
EPM internal electrical failure.
SD-27-5031
0x50D871
20696
113
EPM2, PCL1, Outlet
Solenoid Valve: Actuator
Stuck
Fault set if EPM detects trapped pressure.
Fault could be in FBM, EPM, or related
plumbing.
SD-27-5031
0x50D911
20697
17
EPM3, PCL0, Outlet
Solenoid Valve: Circuit Short
To Ground
EPM internal electrical failure.
SD-27-5031
0x50D912
20697
18
EPM3, PCL0, Outlet
Solenoid Valve: Circuit Short
To Battery
EPM internal electrical failure.
SD-27-5031
0x50D918
20697
24
EPM3, PCL0, Outlet
Solenoid Valve: Circuit
Current Below Threshold
EPM internal electrical failure.
SD-27-5031
0x50D92B
20697
43
EPM3, PCL0, Outlet
Solenoid Valve: Signal Cross
Coupled
EPM internal electrical failure.
SD-27-5031
0x50D971
20697
113
EPM3, PCL0, Outlet
Solenoid Valve: Actuator
Stuck
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Ideal for hydraulic and disc brakes
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
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TSB/Document ID: SD-27-5023V
Replacement Service Bulletin Number:
MFR Communication Date: 2025-04-10
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES
MFR Component System:
MFR Component Subsystem:
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