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.
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HOMESERVICE MANUALSJEEP2002LIBERTY LIMITED EDITION 2WD V6-3.7L VIN KREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULEDESCRIPTION AND OPERATIONBODY CONTROL SYSTEMFUNCTIONAL OPERATIONREAR WINDOW DEFOGGER
2002 Jeep Liberty Limited Edition 2WD V6-3.7L VIN K
Rear Window Defogger
2002 Jeep Liberty Limited Edition 2WD V6-3.7L VIN KSECTION Rear Window Defogger
REAR WINDOW DEFOGGER
The Body Control Module reads the Rear Window Defogger Switch and turns ON the rear window defogger relay to defrost the rear glass. The first time in an ignition cycle that the driver presses the defogger button, the BCM will turn ON the relay for 10 minutes. The second and subsequent times, the BCM will turn ON the relay for 5 minutes. If the ignition is turned OFF, the BCM will turn the rear window defogger relay OFF.
The Body Control Module reads the Rear Window Defogger Switch and turns ON the rear window defogger relay to defrost the rear glass. The first time in an ignition cycle that the driver presses the defogger button, the BCM will turn ON the relay for 10 minutes. The second and subsequent times, the BCM will turn ON the relay for 5 minutes. If the ignition is turned OFF, the BCM will turn the rear window defogger relay OFF.
RENDER: 1.0x
NO RELATED
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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.