Fault Code 41


Description:  Alternator field control circuit open or shorted
Power loss light:  Off
Limp-in mode:  None

Possible Causes

Bad connection or wiring - Check the wiring and connections between the logic module and the power module.  Clean and regrease any corroded connectors with dielectric grease and repair any shorts.

Bad voltage regulator circuit - See Diagnosing Your Charging System

Diagnostic Method

Trigger Parameters

- Near 0V or near 12V not detected when the field coil driver is turned on or off, respectively

Results If Component Fails

Fault code 41 is stored. If the condition persists, it will eventually result in a fault code 46 or 47.
Return to the Fault Codes Page


This page is maintained by Russell W. Knize and was last updated 08/25/98. Comments? Questions? Send email.

Copyright © 1996-2003 Russ W. Knize