Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1517 (STEERING SYSTEM - ELECTRONIC POWER ASSIST STEERING (EPAS))INTERACTIVE DIAGNOSTICSDTC / SYMPTOM SELECTIONDTC INDEX - POWER STEERING CONTROL MODULE (PSCM)DTC U0401: INVALID DATA RECEIVED FROM ECM/PCM ADESCRIPTION
2005 Ford Taurus SEL, 4D Sedan
DTC U0401: Invalid Data Received from ECM/PCM A: Description
2005 Ford Taurus SEL, 4D SedanSECTION Description
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The PSCM will monitor the HS-CAN bus when the ignition has been on for more than 5 seconds, when the voltage to the PSCM is greater than 9 volts and when there are no DTCs present that are inhibiting PSCM operation.
- DTC U0401:00 (Invalid Data Received from ECM/PCM A) - This DTC will set if the PSCM receives invalid or unknown messages from the PCM instead of the actual engine speed (non-hybrid), ready light (hybrid) and vehicle speed (all) data messages, in addition to DTC U0001:00 is not present in the PSCM.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.