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
AWD
C0090:16
4WD/AWD Power Transfer Unit Actuator: Circuit Voltage Below Threshold
GO to Pinpoint Test A
AWD
C0090:..
Activation
Refer to: Starter Motor (303-06C)
.
Check the wear patterns on the starter drive gear and
the flywheel or flexplate ring gear. If the wear pattern is normal,
install the starter motor.
Refer to: Starter Motor (303-06C)
.
If the starter drive gear and the flywheel or flexplate
ring gear are not fully meshing and the gears are score..