Pinpoint Test AQ : U0420:82: Notes
Diagnostic Overview
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to: Diagnostic Methods .
Normal Operation and Fault Conditions
Instrument Panel Cluster (IPC) DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0420:82 | Invalid Data Received From Power Steering Control Module: Alive/Sequence Counter Incorrect/Not Updated | Sets in continuous memory in the IPC if EPAS data received from the GWM module over the Medium Speed Controller Area Network (MS-CAN) or Infotainment Controller Area Network (I-CAN) are missing for 5 seconds or longer. |
Possible Sources
- Communication concern
- Battery voltage concern
- GWM
- PSCM (part of the power steering gear)
- IPC