Controller area network (CAN) data bus: high speed bus/communication control module
Generic · network
Data confidence65%
The control module detected a fault associated with the Controller area network (CAN) data bus: high speed bus/communication control module circuit or function; the stored code identifies the affected component rather than a single failure mode.
Symptoms
Multiple systems may log communication codes
Possible loss of gauge or system functions
Possible causes
Bus wiring open or short circuit
Terminating resistor fault
A faulty node disturbing the bus
Connector corrosion
Recommended checks
Measure CAN-H/CAN-L voltages and bus resistance
Map communicating vs silent modules with a full scan
High Speed CAN Communication Bus — Bus Off
Ford · network
Data confidence96%
The Ford Explorer PSCM detected high speed can communication bus with failure type 88, bus off. This interpretation is specific to the documented EPAS controller and model years.
Recommended checks
Perform a full module scan
Verify battery voltage and PSCM power supplies
Inspect EPAS wiring and connectors
Review PSCM snapshot and extended data
Follow the Ford EPAS diagnostic procedure
Applies toFord Explorer 2011-2012Power Steering Control Module (PSCM)|Electric Power Assisted Steering (EPAS)
Generic SAE-standard code: same meaning on every make.
001
Specific fault index within the subsystem.
Frequently asked questions about U0001
What does U0001 mean?
Controller area network (CAN) data bus: high speed bus/communication control module. The control module detected a fault associated with the Controller area network (CAN) data bus: high speed bus/communication control module circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is U0001 generic or manufacturer-specific?
U0001 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Ford. Always read it in the context of your vehicle.
Can TuningBot remove U0001 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 U0001 is removable in your case.
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