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, GLOBAL TELEMATICS BOX
2023 Jeep Grand Cherokee L Altitude, RWD
Module, Global Telematics Box
2023 Jeep Grand Cherokee L Altitude, RWDSECTION Module, Global Telematics Box
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1401-11 | EMERGENCY CALL SPEAKER - CIRCUIT SHORT TO GROUND |
| B1401-12 | EMERGENCY CALL SPEAKER - CIRCUIT SHORT TO BATTERY |
| B1401-13 | EMERGENCY CALL SPEAKER - CIRCUIT OPEN |
| B1401-2B | EMERGENCY CALL SPEAKER - WIRES SHORTED TOGETHER |
| B143A-11 | MICROPHONE 1 - CIRCUIT SHORT TO GROUND |
| B143A-12 | MICROPHONE 1 - CIRCUIT SHORT TO BATTERY |
| B143A-13 | MICROPHONE 1 - CIRCUIT OPEN |
| B143A-2B | MICROPHONE 1 - WIRES SHORTED TOGETHER |
| B1552-11 | EMERGENCY CALL BUTTON - CIRCUIT SHORT TO GROUND |
| B1552-15 | EMERGENCY CALL BUTTON - CIRCUIT SHORT TO BATTERY OR OPEN |
| B1552-2A | EMERGENCY CALL BUTTON - STUCK |
| B1555-11 | EMERGENCY CALL BUTTON BACKLIGHT LED CONTROL - CIRCUIT SHORT TO GROUND |
| B1555-15 | EMERGENCY CALL BUTTON BACKLIGHT LED CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN |
| B1556-11 | RED EMERGENCY CALL LED CONTROL - CIRCUIT SHORT TO GROUND |
| B1556-15 | RED EMERGENCY CALL LED CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN |
| B1557-11 | GREEN EMERGENCY CALL LED CONTROL - CIRCUIT SHORT TO GROUND |
| B1557-15 | GREEN EMERGENCY CALL LED CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN |
| B1560-11 | CELLULAR ANTENNA 1 - CIRCUIT SHORT TO GROUND |
| B1560-13 | CELLULAR ANTENNA 1 - CIRCUIT OPEN |
| B1561-11 | CELLULAR ANTENNA 2 - CIRCUIT SHORT TO GROUND |
| B1561-13 | CELLULAR ANTENNA 2 - CIRCUIT OPEN |
| B1562-14 | GPS ANTENNA - CIRCUIT SHORT TO GROUND OR OPEN |
| B1570-93 | USB COMMUNICATION - NO OPERATION |
| B1E21-16 | BACKUP BATTERY - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B1E21-96 | BACKUP BATTERY COMPONENT INTERNAL FAILURE |
| B210D-16 | BATTERY VOLTAGE LOW - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B210E-17 | BATTERY VOLTAGE HIGH - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B2206-00 | CURRENT VIN MISSING / MISMATCH |
| B222C-00 | VEHICLE CONFIGURATION NOT PROGRAMMED |
| B22A9-96 | ECU INTERNAL PERFORMANCE - COMPONENT INTERNAL FAILURE |
| B273C-87 | DIGITAL CRASH INPUT - MISSING MESSAGE |
| P0602-00 | CONTROL MODULE PROGRAMMING ERROR / NOT PROGRAMMED |
| U0080-00 | ETHERNET BUS 1 |
| U0100-00 | LOST COMMUNICATION WITH ECM/PCM "A" |
| U0129-00 | LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE 1 |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0151-00 | LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER (ORC) |
| U0155-00 | LOST COMMUNICATION WITH CLUSTER/CCN |
| U0184-00 | LOST COMMUNICATION WITH RADIO |
| U0401-86 | IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM "A" - SIGNAL INVALID |
| U0418-86 | VEHICLE SPEED CAN SIGNAL |
| U0422-86 | INVALID DATA RECEIVED FROM BODY CONTROL MODULE |
| U0423-86 | IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN - SIGNAL INVALID |
| U0452-86 | IMPLAUSIBLE DATA RECEIVED FROM RESTRAINTS CONTROL MODULE - SIGNAL INVALID |
| U0485-86 | IMPLAUSIBLE DATA RECEIVED FROM RADIO - SIGNAL INVALID |
| U1066-00 | HIGH SPEED FD-CAN 8 COMMUNICATION BUS PERFORMANCE |
| U112F-00 | LOST COMMUNICATION WITH VEHICLE DOMAIN CONTROL MODULE "A" |
| U146B-00 | INVALID DATA RECEIVED FROM VEHICLE DOMAIN CONTROL MODULE "A" |
| U160B-45 | ECU BOOT SOFTWARE 1 MISSING OR CORRUPTED PROGRAM MEMORY FAILURE |
| U3033-00 | CONTROL MODULE SECURITY CERTIFICATE MISSING/INVALID |
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.