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 MANUALSJEEP2009PATRIOT LIMITED, EDG, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 4 ((ALL WHEEL DRIVE (AWD) MODULE - ELECTRICAL DIAGNOSTICS))
2009 Jeep Patriot Limited, EDG, Standard
Section 4 ((All Wheel Drive (AWD) Module - Electrical Diagnostics))
2009 Jeep Patriot Limited, EDG, StandardSECTION Section 4 ((All Wheel Drive (AWD) Module - Electrical Diagnostics))
WARNING: This page is about a different variant/trim than selected.
- Diagnostic Code Index
- DTC Troubleshooting
- C1456-AWD Clutch Power Control Circuit Low
- C145A-AWD Clutch Return Control Circuit Low
- C145D-AWD Clutch Power/Return Control Circuit Open
- C145F-AWD System Temporarily Disabled - OVERTEMPERATURE
- C1460-AWD Switch Circuit Performance
- C2100-Battery Voltage Low
- C2101-Battery Voltage High
- C211C-Ignition Run/Start Input Circuit Low
- C211D-Ignition Run/Start Input Circuit High
- C211E-Battery Supply Voltage Low
- C211F-Battery Supply Voltage High
- C2208-AWD Ecu Internal
- U0001-Can C Bus
- U0100-Lost Communication With ECM/Pcm
- U0121-Lost Communication With Abs
- U0141-Lost Communication With IPM (FCM/TIPM)
- U0401-Implausible Data Received From ECM/Pcm
- U0415-Implausible Data Received From Abs
- U0423-Implausible Data Received From Cluster/CCN
- U1113C-Lost Wheel Speed Messages
- U1415-Implausible/Missing Vehicle Configuration Received
- Standard Procedure
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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.