LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lincoln >> 2004 >> LS 3.9 A >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Lighting Systems DTCS >> Exterior Lighting >> Front Electronic Module (FEM) Diagnostic Trouble Code (DTC) Index
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Front Electronic Module (FEM) Diagnostic Trouble Code (DTC) Index

FRONT ELECTRONIC MODULE (FEM) DIAGNOSTIC TROUBLE CODE LIST

DTC Description Source Perform Test
B1567 Lamp Headlamp High-Beam Circuit Failure FEM If high beam is inoperative, Go To PINPOINT TEST D: ONE HIGH BEAM HEADLAMP IS INOPERATIVE .
If high beam is always on, Go To PINPOINT TEST E: THE HEADLAMPS ARE ON CONTINUOUSLY .
B1794 Lamp Headlamp Low-Beam Circuit Failure FEM If low beam is inoperative, Go To PINPOINT TEST C: ONE LOW BEAM HEADLAMP IS INOPERATIVE .
If low beam is always on, Go To PINPOINT TEST E: THE HEADLAMPS ARE ON CONTINUOUSLY .