Other information:
Diagnostic Trouble Code (DTC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
Module
DTC
Description
Action
APIM
U0253:00
Lost Communication With Accessory Protocol Interface Module: No Sub Type Information
GO to Pinpoint Test E..
Starting and Stopping the Engine – Warning Lamps
Malfunction Indicator Lamp
If it illuminates when the
engine is
running, the on-board diagnostics
system is detecting a malfunction
of the vehicle emission control system.
If it flashes, engine misfire could be
occurring. Increased exhaust gas
temperatures could damage the catalytic
converter or other vehicle components.
Avoid heavy accel..