2023 Ford Edge STFACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code (DTC) Chart

WARNING: This page is about a different car, the 2023 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Module DTC Description Action
APIM U2400:81 Ethernet Failure With Gateway Module A (GWM): Invalid Serial Data Received GO to Pinpoint Test A 
APIM U2400:92 Ethernet Failure With Gateway Module A (GWM): Performance Or Incorrect Operation GO to Pinpoint Test A 
GWM U2120:00 Ethernet Learning Incomplete: No Sub Type Information GO to Pinpoint Test C 
GWM U2401:00 Ethernet Failure With Accessory Protocol Interface Module (APIM): No Sub Type Information GO to Pinpoint Test B 
GWM U2401:81 Ethernet Failure With Accessory Protocol Interface Module (APIM): Invalid Serial Data Received GO to Pinpoint Test A 
GWM U2401:92 Ethernet Failure With Accessory Protocol Interface 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 
Factory Service Tools

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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.