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 MANUALSJEEP2007GRAND CHEROKEE LIMITED, 5.7 2, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESELECTRONIC CONTROL MODULES (SERVICE INFORMATION)MODULE-FINAL DRIVE CONTROLOPERATIONFINAL DRIVE CONTROL MODULEINPUTS/OUTPUTS
2007 Jeep Grand Cherokee Limited, 5.7 2, RWD
Final Drive Control Module: Inputs/Outputs
2007 Jeep Grand Cherokee Limited, 5.7 2, RWDSECTION Inputs/Outputs
The following are inputs to the FDCM:
- Lateral Accelerometer
- Transfer Case Range Select Switch
- Transfer Case Mode Sensor Signal
- 3 Direct Battery Feeds
- Ignition RUN Sense
- Sensor Grounds
- Module Grounds
- CAN C Bus
The following are outputs of the FDCM:
- 5V Sensor Supply
- Transfer Case NEUTRAL Lamp
- Front Electronic Limited Slip Differential Pressure Solenoid
- Rear Electronic Limited Slip Differential Pressure Solenoid
- Transfer Case Bi-directional Motor Control (A & B)
- Switched B+ Solenoid Supply
- Transfer Case Motor Brake Control
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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.