Decoding fault codes EBS 2 WABCO MAN / Full list
- SPN 03069
- SPN 03070
- SPN 03071
- SPN 03072
- SPN 03073
- SPN 03074
- SPN 03075
- SPN 03076
- SPN 03077
- SPN 03078
- SPN 03080
- SPN 03081
- SPN 03082
- SPN 03083
- SPN 03084
- SPN 03085
- SPN 03086
- SPN 03087
- SPN 03088
- SPN 03089
- SPN 03090
- SPN 03091
- SPN 03092
- SPN 03093
- SPN 03094
- SPN 03095
- SPN 03096
- SPN 03097
- SPN 03098
- SPN 03099
EBS 2 Wabco MAN — Electronic Brake System Error Codes and Error Interpretations
The Wabco Electronic Brake System EBS 2 is used in MAN trucks and is responsible for the correct operation of the brakes, ABS, ASR, and other active safety systems. When malfunctions occur, the EBS control unit records errors that are displayed as SPN and FMI diagnostic codes.
This page provides a decryption of Wabco MAN EBS 2 fault codes, as well as a description of the causes of the errors and diagnostic recommendations.
How to read EBS fault codes (SPN / FMI)
EBS diagnostic errors are displayed in the following format:
SPN XXX FMI X
- SPN (Suspect Parameter Number) — identifies a specific node, sensor, or system parameter.
- FMI (Failure Mode Identifier) — identifies the type of fault (open, short, invalid signal, etc.)
FMI examples:
- FMI 3 — Signal not recognized
- FMI 4 — Open circuit
- FMI 5 — Short circuit to ground
- FMI 6 — Short circuit to power
- FMI 10 — CAN bus communication error
Understanding the SPN/FMI format allows you to quickly determine the direction of troubleshooting.
Main causes of Wabco MAN EBS 2 errors
In practice, most EBS 2 Wabco errors occur for the following reasons:
- damaged or oxidized wiring and connectors
- malfunctioning pressure sensors or brake switches
- power supply problems (terminal 30, ground)
- errors or breaks in the J1939 CAN bus
- software failures in the EBS control unit
- failure of the Wabco EBS unit itself
Timely decoding of the diagnostic code allows to avoid serious brake system failures and costly repairs.
What do the STOP and ABS indicators mean?
If a malfunction occurs with the Wabco EBS 2, various signals may be displayed on the MAN instrument cluster:
- STOP yellow — a malfunction is present, but basic braking functions are retained
- STOP red — critical error, EBS functions are limited or disabled
- ABS / ASR — disabling the auxiliary stabilization systems and traction control systems
If the red STOP indicator appears, operation of the vehicle is not recommended until the cause of the malfunction is completely rectified.
How to properly diagnose the Wabco EBS 2
Recommended procedure for diagnosing the electronic braking system:
Read the fault code with a MAN diagnostic scanner / Find the corresponding code SPN / FMI in the list below / Check:
- Wiring condition
- EBS unit connectors
- Power and ground
- Sensor resistance
If necessary:
- Update the unit software
- Replace the faulty sensor or module
- Replace the EBS control unit
Important: Replacing the EBS unit without a complete diagnostic often does not solve the problem if the cause is in the wiring or power supply.
Why is it important to use EBS code decoding?
Using accurate Wabco EBS 2 error decoding allows you to:
- reduce troubleshooting time
- avoid Unnecessary replacement of expensive components.
- Accurately identify the faulty component.
- Improve the operating safety of MAN vehicles.
- Reduce commercial vehicle downtime.
Wabco MAN EBS 2 Error Codes.
Below is a complete list of Wabco MAN EBS 2 Error Codes, including:
- Brake sensor errors.
- EBS power supply faults.
- J1939 CAN bus faults.
- Control unit faults. Wabco
- Other Electronic Brake System Diagnostic Codes
Each code contains:
- Description of the malfunction
- Possible causes
- Inspection and repair recommendations
SAE J1939 data link, TD message, reception time exceeded.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
SAE J1939 data link, ETC1 message from FFR, reception time exceeded.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
SAE J1939 data link, ETC2 message from FFR, reception time exceeded.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
SAE J1939 data link, CFG-MC message from EDC, reception time exceeded.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
SAE J1939 data channel, ERC1-MC message from EDC, reception time exceeded.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for shorts and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
SAE J1939 data link, message AS1-ZBR, reception time exceeded.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
SAE J1939 data channel, EBC1_x (HSB) message, reception time exceeded.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
SAE J1939 data channel, ESC1 (NLA) message, reception time exceeded.
STOP indicator light is yellow. FMI 3: ESP is deactivated. FMI4: ABS and ESP functionality is limited depending on the message data.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the fault memory and the correct operation of the electronic control system of the tag axle.
The EBS/ESP evaluation indicates that the steering angle information of the tag axle system is incorrect.
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Transmission data link, XBR (ACC) message.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Transmission data channel, ETC7 message.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the sending control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for shorts and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid CCVS signal (parking brake).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid CCVS signal (clutch).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid EEC1 signal (calculated torque).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid EEC1 signal (true torque).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the sending control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid EEC1 signal (engine speed).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid EEC2 signal (idle throttle switch).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid EEC2 signal (accelerator pedal position).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid EEC3 signal (nominal friction torque).
The STOP indicator lamp lights up yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid ERC1_MC signal (brake mode).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid ERC1_MC signal (braking torque).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid ETC1 signal (transmission).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid ETC2 signal (transmission gear information).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for shorts and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid SP signal (circuit reserve 1).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid SP signal (circuit reserve 2).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the sending control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for shorts and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid CFG_MC signal (braking torque).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Invalid CFG_E signal (braking torque).
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Transmission data channel, message AS1_ZBR, trailer lights 1 detected.
STOP indicator light is yellow. FMI 3: ESP deactivated. FMI 8: ABS and ESP functionality is limited depending on the message data.
Partial failure of the transmission data channel.
Check the fault memory of the ZBR central on-board computer (A302) for entries or for proper operation.
Incorrect information about the connected trailer as assessed by the EBS/ESP.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Transmission data channel, ESC1 message, steering wheel angle.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for short circuits and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Transmission data channel, ESC1 message, steer axle status.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the sending control unit; if errors are present, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for shorts and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.
Transmission data channel, ETC1 message, clutch slip percentage.
The STOP indicator light is yellow. ABS and ESP are disabled.
Partial failure of the transmission data channel.
Check the fault memory of the transmitting control unit; if errors are detected, eliminate the cause.
Check the correct operation of the control units connected to the transmission data channel (T-CAN).
Check the wiring and contacts in the transmission data channel (T-CAN) connectors for shorts and open circuits.
The resistance between contacts X1/21 and X1/20 of the EBS unit (A402) should be 60 ohms.