Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2001 Ford Explorer ChassisFACTORY OEM SERVICE PROCEDURE

Instrument Panel DTCS

INSTRUMENT PANEL DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC	Description	Test
B1323	Door Ajar Light Circuit Fault	V
B1325	Door Ajar Light Circuit Short To Voltage	V
B1342	GEM/CTM Defective	Using NGS tester, retrieve and document continuous DTCs. Clear all DTCs. Perform GEM/CTM self-test. If DTC B1342 is retrieved again, replace GEM/CTM.
B1426	Seat Belt Light Circuit Short To Voltage	W
B1428	Seat Belt Light Circuit Fault	W
P1804	4WD High Indicator Light Circuit Fault	X
P1806	4WD High Indicator Light Circuit Short To Voltage	X
P1808	4WD Low Indicator Light Circuit Fault	X
P1810	4WD Low Indicator Light Circuit Short To Voltage	X

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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