What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
9Original wording in English
MAZDA
Reported code forms U0115
DESCRIPTION Some CX-70 and CX-90 PHEV vehicles may fail to start (enter READY mode) in cold weather, but the vehicle can often be started successfully on the next attempt. This may occur when leakage current between…
MERCEDES-BENZ
Reported code forms U011500
Complaint 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for vehicles with BMS30EB02 yellow HV drive system 465: Red 12V battery message, white HV warning message,…
MERCEDES-BENZ
Reported code forms U011500
Complaint 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for vehicles with BMS30EB02 yellow HV drive system 465: Red 12V battery message, white HV warning message,…
MERCEDES-BENZ
Reported code forms U011500
Complaint 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for vehicles with BMS30EB02 yellow HV drive system 465: Red 12V battery message, white HV warning message,…
MERCEDES-BENZ
Reported code forms U011500
Complaint: 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for vehicles with BMS30EB02 yellow HV drive system 465: Red 12V battery message, white HV warning message,…
MERCEDES-BENZ
Reported code forms U011500
Complaint: 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for vehicles with BMS30EB02 yellow HV drive system 465: Red 12V battery message, white HV warning message,…
Check vehicle applicability
29A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cummins | C8.3 | Year not specified |
| Cummins | CUMMINS | Year not specified |
| Cummins | ISC | Year not specified |
| Cummins | ISL CM2150 | Year not specified |
| Mazda | CX-70 PLUG-IN HYBRID | 2026 |
| Mazda | CX-70 PLUG-IN HYBRID | 2025 |
| Mazda | CX-90 PLUG-IN HYBRID | 2026 |
| Mazda | CX-90 PLUG-IN HYBRID | 2025 |
| Mazda | CX-90 PLUG-IN HYBRID | 2024 |
| Mercedes-Benz | AMG G63 | 2025 |
| Mercedes-Benz | EQB 250 | 2024 |
| Mercedes-Benz | EQB 250 | 2023 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.