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 DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSHANDS FEED MODULE (HFM) - ELECTRICAL DIAGNOSTICS
2009 Jeep Patriot Limited, EDG, Standard
Hands Feed Module (HFM) - Electrical Diagnostics
2009 Jeep Patriot Limited, EDG, StandardSECTION Hands Feed Module (HFM) - Electrical Diagnostics
- Diagnostic Code Index
- DTC Troubleshooting
- B1435-Voice Recognition/Phone Switch Input Circuit Performance
- B1438-Voice Recognition Switch Stuck
- B1439-Phone Switch Stuck
- B143B-Microphone 1 Circuit Low
- B143C-Microphone 1 Circuit High
- B143E-Microphone 2 Circuit Low
- B143F-Microphone 2 Circuit High
- B1459-Telematics Mirror Control Circuit Low
- B145A-Telematics Mirror Control Circuit High
- B2205-Original VIN Missing/Mismatch
- B222A-Vehicle Line Mismatch
- B222E-Flash Checksum Performance
- B2223-(HFM) Hands Free Phone Internal
- B2230-Ram Write Performance
- U0019-Can B Bus
- U0141-Lost Communication With Front Control Module (Totally Integrated Power Module)
- U0151-Lost Communication With Occupant Restraint Controller
- U0154-Lost Communication With Occupant Classification Module
- U0155-Lost Communication With Cluster/CCN
- U0167-Lost Communication With Intrusion Transceiver Control Module
- U0168-Lost Communication With Vehicle Security Control Module (WCM)
- U0184-Lost Communication With Radio
- U0186-Lost Communication With Audio Amplifier
- U0195-Lost Communication With SDARS
- U0199-Lost Communication With Driver Door Module
- U0200-Lost Communication With Passenger Door Module
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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.