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 MANUALSJEEP2009GRAND CHEROKEE SRT-8REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESHEATED SEAT MODULE (HSM) - ELECTRICAL DIAGNOSTICS
2009 Jeep Grand Cherokee SRT-8
Heated Seat Module (HSM) - Electrical Diagnostics
2009 Jeep Grand Cherokee SRT-8SECTION Heated Seat Module (HSM) - Electrical Diagnostics
- Diagnostic Code Index
- DTC Troubleshooting
- B1092-Front Left Seat Heater Control Circuit Low
- B1094-Front Left Seat Heater Control Circuit Open
- B1096-Front Right Seat Heater Control Circuit Low
- B1098-Front Right Seat Heater Control Circuit Open
- B117D-Rear Left Seat Heater Control Circuit Low
- B117F-Rear Left Seat Heater Control Circuit Open
- B1181-Rear Right Seat Heater Control Circuit Low
- B1183-Rear Right Seat Heater Control Circuit Open
- B210D-Battery Voltage Low
- B210E-Battery Voltage High
- B221A-Heated Seat Module Internal
- U0019-Can B Bus
- U0141-Lost Communication With Front Control Module
- U0155-Lost Communication With Cluster/CCN
- U0156-Lost Communication With EOM
- U0159-Lost Communication With Parking Assist Control Module
- U0164-Lost Communication With HVAC Control Module
- U0167-Lost Communication With Intrusion Transceiver Module (ITM)
- U0168-Lost Communication With Vehicle Security Control Module (Win)
- U0169-Lost Communication With Sunroof Control Module
- U0181-Lost Communication With Headlamp Leveling Translator
- U0184-Lost Communication With Radio
- U0186-Lost Communication With Audio Amplifier
- U0196-Lost Communication With Vehicle Entertainment Control Module
- U0197-Lost Communication With Hands Free Phone
- U0199-Lost Communication With Driver Door Module
- U0200-Lost Communication With Passenger Door Module
- U0209-Lost Communication With Memory Seat Control Module
- U0212-Lost Communication With SCCM
- U0231-Lost Communication With Rain Sensing Module
- U0241-Lost Communication With Auto High Beam Headlamp Control Module
- U1107-Ecu In Single-Wire Mode
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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.