Pinpoint Test AN: Auxiliary Powertrain Control System: Introduction: Remember
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose only the following:
- harness circuits: KEY PWR, GND, BUS+, BUS-
- auxiliary powertrain control (APCM)