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 MANUALSJEEP2023GRAND CHEROKEE L ALTITUDE, RWDREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXDTC INDEX (2 OF 3)MODULE, DRIVER MONITORING SYSTEM (DMSM)
2023 Jeep Grand Cherokee L Altitude, RWD
Module, Driver Monitoring System (DMSM)
2023 Jeep Grand Cherokee L Altitude, RWDSECTION Module, Driver Monitoring System (DMSM)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B0126-04 | DRIVER MONITORING CAMERA - SYSTEM INTERNAL FAILURES |
| B0126-4B | DRIVER MONITORING CAMERA - OVER TEMPERATURE |
| B0126-54 | DRIVER MONITORING CAMERA - MISSING CALIBRATION |
| B0126-78 | DRIVER MONITORING CAMERA - ALIGNMENT OR ADJUSTMENT INCORRECT |
| B0126-97 | DRIVER MONITORING CAMERA - COMPONENT OR SYSTEM OPERATION OBSTRUCTED OR BLOCKED |
| B2199-16 | BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B2199-17 | BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B222D-00 | ECU UNABLE TO CONFIGURE/CONFIGURATION NOT LEARNED |
| B22A9-04 | ECU INTERNAL PERFORMANCE - SYSTEM INTERNAL FAILURES |
| B22A9-45 | ECU INTERNAL PERFORMANCE - PROGRAM MEMORY FAILURE |
| B22A9-4B | ECU INTERNAL PERFORMANCE - OVER TEMPERATURE |
| B23AD-00 | INTERNAL DATA RECORD FULL |
| C2202-00 | ORIGINAL VIN MISMATCH/MISSING |
| P0602-00 | CONTROL MODULE PROGRAMMING ERROR / NOT PROGRAMMED |
| U0011-00 | CAN INTERIOR BUS OFF PERFORMANCE |
| U0100-00 | LOST COMMUNICATION WITH ECM/PCM "A" |
| U0101-00 | LOST COMMUNICATION WITH TCM |
| U0129-00 | LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE 1 |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0155-00 | LOST COMMUNICATION WITH CLUSTER/CCN |
| U015C-00 | LOST COMMUNICATION WITH AUTOMATED DRIVING SYSTEM CONTROL MODULE "A" |
| U0401-00 | IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM "A" |
| U0402-00 | IMPLAUSIBLE DATA RECEIVED FROM TCM |
| U0418-00 | IMPLAUSIBLE DATA RECEIVED FROM BRAKE SYSTEM CONTROL MODULE 1 |
| U0422-00 | IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULE |
| U0423-00 | IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN |
| U044A-00 | IMPLAUSIBLE DATA RECEIVED FROM SECURITY GATEWAY |
| U045D-00 | INVALID DATA RECEIVED FROM AUTOMATED DRIVING SYSTEM CONTROL MODULE "A" |
RENDER: 1.0x
NO RELATED
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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.