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 MANUALSJEEP2008WRANGLER 2WD V6-3.8LREPAIR AND DIAGNOSISPOWER AND GROUND DISTRIBUTIONPOWER DISTRIBUTION MODULETECHNICAL SERVICE BULLETINSRECALLSRECALL - A/T FLUID TEMPERATURE WARNING ENABLINGSERVICE PROCEDUREA. REPROGRAM THE CCN USING WITECH
2008 Jeep Wrangler 2WD V6-3.8L
A. Reprogram the CCN Using wiTECH
2008 Jeep Wrangler 2WD V6-3.8LSECTION A. Reprogram the CCN Using wiTECH
NOTE:
The CCN is "abort - recovery" supported. If this flash process is interrupted/aborted repeat the procedure.
1. Open the hood. Install a battery charger and verify that the charging rate provides 13.2 to 13.5 volts. Do not allow the charger to time out during the flash process. Set the battery charger timer (if so equipped) to continuous charge.
NOTE:
Use an accurate stand-alone voltmeter. The battery charger voltmeter may not be sufficiently accurate. Voltages outside of the specified range will cause an unsuccessful flash. If voltage reading is too high, apply an electrical load by activating the park or headlamps and/or HVAC blower motor to lower the voltage.
2. Connect the wiPOD to the vehicle data link connector.
3. Place the ignition key in the "RUN" position.
4. Launch the wiTECH diagnostic application.
5. Select "CCN" from the vehicle view screen.
6. Select the "FLASH" tab.
7. Select the flash file from the list.
8. Select the "UPDATE ECU" button and follow the screen prompts.
9. Clear all DTC's.
NOTE:
Due to the CCN programming procedure, DTC(s) may be set in other modules (PCM, TCM, ABS, BCM, MIC, WCM, etc.) within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate.
10. Place the ignition in the "OFF" position, remove the wiPOD from the data link connector and disconnect the battery charger.
The CCN is "abort - recovery" supported. If this flash process is interrupted/aborted repeat the procedure.
1. Open the hood. Install a battery charger and verify that the charging rate provides 13.2 to 13.5 volts. Do not allow the charger to time out during the flash process. Set the battery charger timer (if so equipped) to continuous charge.
NOTE:
Use an accurate stand-alone voltmeter. The battery charger voltmeter may not be sufficiently accurate. Voltages outside of the specified range will cause an unsuccessful flash. If voltage reading is too high, apply an electrical load by activating the park or headlamps and/or HVAC blower motor to lower the voltage.
2. Connect the wiPOD to the vehicle data link connector.
3. Place the ignition key in the "RUN" position.
4. Launch the wiTECH diagnostic application.
5. Select "CCN" from the vehicle view screen.
6. Select the "FLASH" tab.
7. Select the flash file from the list.
8. Select the "UPDATE ECU" button and follow the screen prompts.
9. Clear all DTC's.
NOTE:
Due to the CCN programming procedure, DTC(s) may be set in other modules (PCM, TCM, ABS, BCM, MIC, WCM, etc.) within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate.
10. Place the ignition in the "OFF" position, remove the wiPOD from the data link connector and disconnect the battery charger.
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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.