U010BLost Communication With Exhaust Gas Recirculation Control Module B
Generic (OBD-II) interpretation in the TuningBot DTC database.
U · NetworkEmissionsOBD2
What U010B means
U010B
Lost Communication With Exhaust Gas Recirculation Control Module B
Generic · emissions
Data confidence65%
The control module stopped receiving expected network messages from the Exhaust Gas Recirculation Control Module B node on the vehicle communication bus.
Symptoms
MIL illuminated
Possible reduced engine performance
Possible rough idle or hesitation
Possible causes
Carbon-blocked EGR passages
Sticking or slow EGR valve
EGR actuator or position sensor fault
Wiring or connector fault
Vacuum supply fault (vacuum-operated systems)
Recommended checks
Read freeze frame data and full module scan
Check battery voltage and sensor supply
Inspect EGR wiring and connectors
Compare commanded vs actual EGR position/flow with live data
Inspect EGR valve and passages for carbon build-up
Generic SAE-standard code: same meaning on every make.
10B
Specific fault index within the subsystem.
Frequently asked questions about U010B
What does U010B mean?
Lost Communication With Exhaust Gas Recirculation Control Module B. The control module stopped receiving expected network messages from the Exhaust Gas Recirculation Control Module B node on the vehicle communication bus.
Is U010B generic or manufacturer-specific?
U010B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U010B at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U010B is removable in your case.
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