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TuningBot DTC Database · v4.37.15

U0452 Diagnostic Trouble Code (2 variants)

Generic (OBD-II) interpretation + 1 manufacturer-specific in the TuningBot DTC database.

U · NetworkNetworkOBD2
Brand pages:Ford

Generic (OBD-II) interpretation

U0452
Invalid Data Received From Restraints Control Module Generic · network Data confidence 65%

The control module registered the fault condition described as "Invalid Data Received From Restraints Control Module".

Symptoms

  • Multiple warning lamps possible
  • Functions of the affected module unavailable

Possible causes

  • CAN bus wiring fault (open, short, chafed harness)
  • Faulty control module loading the bus
  • Connector or terminal corrosion
  • Power supply or ground fault of a module

Recommended checks

  • Perform a full-module scan to map which modules communicate
  • Check CAN bus resistance and voltages at the diagnostic connector
  • Inspect wiring and connectors of the affected module
  • Check module power supply and grounds
  • Disconnect suspect modules one at a time only with a documented procedure

Manufacturer-specific interpretations

Ford

2 interpretations
U0452:00
Invalid Data Received From Restraints Control Module — No Sub Type Information Ford · network Data confidence 96%

The Ford Explorer PSCM detected invalid data received from restraints control module with failure type 00, no sub type information. 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 to Ford Explorer 2011-2012 Power Steering Control Module (PSCM)|Electric Power Assisted Steering (EPAS)
U0452:22
Invalid Data Received From Restraints Control Module — Signal Amplitude Above Maximum Ford · network Data confidence 96%

The Ford Explorer PSCM detected invalid data received from restraints control module with failure type 22, signal amplitude above maximum. 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 to Ford Explorer 2011-2012 Power Steering Control Module (PSCM)|Electric Power Assisted Steering (EPAS)

Related and nearby codes

U04 range
U0400U0401U0402U0403U0404U0405U0406U0407U0408U0409U040AU040BU040CU040DU040EU040FU0410U0411

How to read U0452

U

Network: communication between control units.

0

Generic SAE-standard code: same meaning on every make.

452

Specific fault index within the subsystem.

Frequently asked questions about U0452

What does U0452 mean?

Diagnostic Trouble Code (2 variants). The control module registered the fault condition described as "Invalid Data Received From Restraints Control Module".

Is U0452 generic or manufacturer-specific?

U0452 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 U0452 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 U0452 is removable in your case.

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