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.
2008 Jeep Commander Base, 4.7 N, RWDFACTORY OEM SERVICE PROCEDURE
Electronic Control Modules DTCS
ELECTRONIC CONTROL MODULES DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| B210D | BATTERY VOLTAGE LOW - (FCM) |
| B210E | BATTERY VOLTAGE HIGH (FCM) |
| B2112 | 5 VOLT SUPPLY CIRCUIT LOW (FCM) |
| B2113 | 5 VOLT SUPPLY CIRCUIT HIGH (FCM) |
| B2206 | CURRENT VIN MISSING/MISMATCH |
| B2215 | FRONT CONTROL MODULE INTERNAL |
| B222C | VEHICLE CONFIGURATION NOT PROGRAMMED |
| U0001 | CAN C BUS CIRCUIT |
| U0021 | CAN B BUS (+) CIRCUIT OPEN |
| U0022 | CAN B BUS (+) CIRCUIT LOW |
| U0023 | CAN B BUS (+) CIRCUIT HIGH |
| U0024 | CAN B BUS (-) CIRCUIT OPEN |
| U0025 | CAN B BUS (-) CIRCUIT LOW |
| U0026 | CAN B BUS (-) CIRCUIT HIGH |
| U0027 | CAN B BUS (-) SHORTED TO BUS (+) |
| U0100 | LOST COMMUNICATION WITH ECM/PCM |
| U0101 | LOST COMMUNICATION WITH TCM |
| U0103 | LOST COMMUNICATION WITH ELECTRIC GEAR SHIFT MODULE |
| U0114 | LOST COMMUNICATION WITH FINAL DRIVE CONTROL MODULE |
| U0121 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE MODULE |
| U0141 | LOST COMMUNICATION WITH FRONT CONTROL MODULE |
| U0151 | LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER (ORC) |
| U0155 | LOST COMMUNICATION WITH CLUSTER/CCN |
| U0159 | LOST COMMUNICATION WITH PARK ASSIST CONTROL MODULE |
| U0164 | LOST COMMUNICATION WITH HVAC CONTROL MODULE |
| U0167 | LOST COMMUNICATION WITH INTRUSION TRANSCEIVER CONTROL MODULE |
| U0168 | LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (SKREEM/WCM) |
| U0169 | LOST COMMUNICATION WITH SUNROOF CONTROL MODULE |
| U0184 | LOST COMMUNICATION WITH RADIO |
| U0186 | LOST COMMUNICATION WITH AUDIO AMPLIFIER |
| U0195 | LOST COMMUNICATION WITH SDARS |
| U0196 | LOST COMMUNICATION WITH VEHICLE ENTERTAINMENT CONTROL MODULE |
| U0197 | LOST COMMUNICATION WITH HANDS FREE PHONE MODULE |
| U0199 | LOST COMMUNICATION WITH DRIVER DOOR MODULE |
| U0200 | LOST COMMUNICATION WITH PASSENGER DOOR MODULE |
| U0208 | LOST COMMUNICATION WITH HEATED SEAT CONTROL MODULE |
| U0209 | LOST COMMUNICATION WITH MEMORY SEAT CONTROL MODULE |
| U0212 | LOST COMMUNICATION WITH SCCM - CAN B |
| U0230 | LOST COMMUNICATION WITH POWER LIFTGATE MODULE |
| U0231 | LOST COMMUNICATION WITH RAIN SENSING MODULE |
| U0241 | LOST COMMUNICATION WITH AUTO HIGHBEAM HEADLAMP CONTROL MODULE |
| U0252 | LOST COMMUNICATION WITH TRAILER LIGHTING MODULE |
| U1108 | ADDITIONAL CAN B ECU DETECTED |
| U110A | LOST COMMUNICATION WITH SCCM - CAN C |
Factory Service Tools
Use the Manual With the Right Hardware
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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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