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.
2000 Jeep Wrangler SE, AutomaticFACTORY OEM SERVICE PROCEDURE
Body Control Modules
- Description
- Operation
- Component Locations
- Programming
- Service Precautions
- Self-Diagnostic System
- System Tests
- Communications
- Notes
- Bus (+) &/Or Bus (-) Open
- Bus (+) & Bus (-) Shorted Together
- Bus Bias Too High/Too Low
- No Bus Bias
- No Response From Air Bag Control Module
- No Response From Instrument Cluster
- No Response From Powertrain Control Module
- No Response From Sentry Key Immobilizer Module
- No Termination
- Not Receiving Bus Messages Correctly
- Short To 5 Volts
- Short To Battery
- Short To Ground
- Instrument Cluster
- Sentry Key Immobilizer System
- Notes
- Antenna Failure, COP Failure, EEPROM Failure, Internal Faults, RAM Failure, Serial Link Internal Or Stack Overflow Failure
- PCM Status Failure, Rolling Code Failure Or Serial Link External Fault
- Transponder Cyclic Redundancy Check Failure, Transponder Communication Failure, Transponder Id Mismatch, Or Transponder Response Mismatch
- VIN Mismatch
- Communications
- Verification Tests
- Removal & Installation
- Wiring Diagrams
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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