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..
Removal
NOTE:
If installing a new module, it is necessary to
upload the module configuration information to the scan tool prior to
removing the module. This information must be downloaded into the new
module after installation.
Using a diagnostic scan tool, begin the PMI process for the GWM following the on-screen instructions.
Remove the subwoofer and amplifier unit..