Diagnostic Trouble Code (DTC) Chart
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
Diagnostic Trouble Code Chart
| Module | DTC | Description | Action |
|---|---|---|---|
| GWM | U2401:00 | Ethernet failure with Accessory Protocol Module (APIM): No Sub Type Information | GO to Pinpoint Test B |
| GWM | U2401:81 | Ethernet failure with Accessory Protocol Module (APIM): Invalid Serial Data Received | GO to Pinpoint Test A |
| GWM | U2401:92 | Ethernet failure with Accessory Protocol Module (APIM): Performance or Incorrect Operation | GO to Pinpoint Test A |
| GWM | U2402:00 | Ethernet Failure with Telematic Control Unit Module (TCU): No Sub Type Information | GO to Pinpoint Test B |
| GWM | U2402:81 | Ethernet Failure with Telematic Control Unit Module (TCU): Invalid Serial Data Received | GO to Pinpoint Test A |
| GWM | U2402:92 | Ethernet Failure with Telematic Control Unit Module (TCU): Performance or Incorrect Operation | GO to Pinpoint Test A |
| GWM | U2403:81 | Ethernet Failure with Instrument Panel Cluster Control Module (IPC): Invalid Serial Data Received | GO to Pinpoint Test A |
| GWM | U2403:92 | Ethernet Failure with Instrument Panel Cluster Control Module (IPC): Performance or Incorrect Operation | GO to Pinpoint Test A |
| GWM | U2404:81 | Ethernet Failure with Image Processing Module "A" (IPMA): Invalid Serial Data Received | GO to Pinpoint Test A |
| GWM | U2404:92 | Ethernet Failure with Image Processing Module "A" (IPMA): Performance or Incorrect Operation | GO to Pinpoint Test A |