LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Taurus SES, 3.0 2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 421 (Interior Lighting System) >> Diagnosis And Testing >> Interior Lighting >> Inspection and Verification >> GEM Diagnostic Trouble Code (DTC) Index
April 5, 2026: LEMON Manuals is launched! Read the announcement.

GEM Diagnostic Trouble Code (DTC) Index

WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
GEM DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B1314 Battery Saver Relay Coil Circuit Open (and Short to Ground) GEM If battery saver does not operate, Go To PINPOINT TEST E .
If battery saver does not deactivate after time-out, Go To PINPOINT TEST G .
B1315 Battery Saver Relay Coil Circuit Short to Battery GEM Go To PINPOINT TEST E .
B1317 Battery Voltage High GEM Go To PINPOINT TEST J .
B1318 Battery Voltage Low GEM Go To PINPOINT TEST K .
B1322 Driver Door Ajar Circuit Short to Ground GEM Go To PINPOINT TEST C .
B1330 Passenger Door Ajar Circuit Short to Ground GEM Go To PINPOINT TEST C .
B1334 Decklid Ajar Rear Door Circuit Short to Ground GEM Go To PINPOINT TEST C .
B1338 Door Ajar RR Circuit Short to Ground GEM Go To PINPOINT TEST C .
B1371 Illuminated Entry Relay Circuit Failure GEM If the interior lamps are inoperative, Go To PINPOINT TEST B .
If the interior lamps remain on continuously, Go To PINPOINT TEST C .
B1373 Illuminated Entry Relay Short to Battery GEM Go To PINPOINT TEST B .
B1574 Door Ajar LR Circuit Short to Ground GEM Go To PINPOINT TEST C .
- All Other DTCs GEM REFER to MULTIFUNCTION ELECTRONIC MODULE .

For a complete list of multifunction module DTCs, refer to MULTIFUNCTION ELECTRONIC MODULE .