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.
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HOMESERVICE MANUALSFORD2018F-150 XLT, 4D PICKUP EXTRA CAB, 3.5L ENG VIN G, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESBRAKES CONTROL SYSTEMSABS GUIDED ROUTINE TESTINGDTC/SYMPTOM SELECTIONDTC INDEXABS - ANTILOCK BRAKING SYSTEMDTC U0420: INVALID DATA RECEIVED FROM PSCM (POWER STEERING CONTROL MODULE)
2018 Ford F-150 XLT, 4D Pickup Extra Cab, 3.5L Eng VIN G, RWD
DTC U0420: Invalid Data Received From PSCM (power steering control module)
2018 Ford F-150 XLT, 4D Pickup Extra Cab, 3.5L Eng VIN G, RWDSECTION DTC U0420: Invalid Data Received From PSCM (power steering control module)
| Failure | Action |
|---|---|
| 00 | This DTC sets if the ABS module receives invalid steering wheel torque information. Using a diagnostic scan tool, RETRIEVE and DIAGNOSE all PSCM DTCs. REFER to DIAGNOSIS AND TESTING . If no PSCM DTCs are present, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PSCM electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary. |
| 41 | This DTC sets if the steering wheel angle sensor checksum is invalid. Using a diagnostic scan tool, RETRIEVE and DIAGNOSE all PSCM DTCs. REFER to DIAGNOSIS AND TESTING . If no PSCM DTCs are present, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PSCM electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary. |
| 82 | This DTC sets if the steering wheel angle sensor rolling counter message is out of range. Using a diagnostic scan tool, RETRIEVE and DIAGNOSE all PSCM DTCs. REFER to DIAGNOSIS AND TESTING . If no PSCM DTCs are present, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PSCM electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary. |
| 86 | This DTC sets if the information in the steering wheel angle sensor message is out of range or invalid. Using a diagnostic scan tool, RETRIEVE and DIAGNOSE all PSCM DTCs. REFER to DIAGNOSIS AND TESTING . If no PSCM DTCs are present, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PSCM electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary. |
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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.