NetworkU1407
SeriousSeverity: Serious - have it checked soon
Dynamic Range Error
Key terms: Control module: a small computer that runs one part of the car
1What it means in plain English
Control modules in the car cannot communicate with each other over the vehicle network.
2Common causes
- Wiring or connector fault on the communication bus
- Faulty control module
- Low battery voltage or poor ground
- Water ingress in a connector or module
- Aftermarket device interfering with the bus
3Can I drive?
The car may run normally or may not run at all. If the module that has lost communication controls steering, brakes, park brake, charging or engine cooling, drive only if those systems feel normal; stop safely if the steering becomes heavy, a brake warning appears, or the engine temperature climbs. If the car will not start or runs badly, have it towed.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 22
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | U1407 | No description available | Network |
| BYD | U1407 | Dynamic Range Error Brand | Network |
| Chery | U1407 | Dynamic Range Error Brand | Network |
| Chrysler | U1407 | implausible engine torque request signal received Brand | Network |
| Daewoo | U1407 | No description available | Network |
| DFFX | U1407 | Dynamic Range Error Brand | Network |
| EOBD | U1407 | Klemme 30 Brand | Network |
| Geely | U1407 | Dynamic Range Error Brand | Network |
| GM | U1407 | No description available | Network |
| Great Wall | U1407 | Dynamic Range Error Brand | Network |
| Hafei | U1407 | Dynamic Range Error Brand | Network |
| Holden | U1407 | No description available | Network |
| Mahindra | U1407 | No description available | Network |
| Mitsubishi | U1407 | Dynamic range error Brand | Network |
| Opel | U1407 | No description available | Network |
| Peugeot | U1407 | No description available | Network |
| Proton | U1407 | Dynamic range error Brand | Network |
| Saab | U1407 | No description available | Network |
| MG (SAIC) | U1407 | Invalid Data Received from Antilock Brake System Brand | Network |
| Smart | U1407 | No description available | Network |
| Sprinter | U1407 | No description available | Network |
| Suzuki | U1407 | No description available | Network |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 5
These 7-character codes are manufacturer-specific variants of U1407 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | U140700 | Das FlexRay-Signal Min-Motormoment oder Max-Motormoment oder EngTrqCoastMin (Mildhybrid) vom ECM -SG (Motorsteuergerät) ist fehlerhaft. Brand | Network |
| SsangYong | U140700 | CAN: error in signal value for torque demand from ESP(from MS) (invalid) Brand | Network |
| Mercedes-Benz | U140786 | Implausible signal 'Engine torque' was received. Signal Invalid Brand | Network |
| Mercedes-Benz | U1407FB | Das FlexRay-Signal EngTrqStatic (Statisches Motormoment) vom ECM -SG (Motorsteuergerät) ist fehlerhaft. Brand | Network |
| Mercedes-Benz | U1407FC | Das FlexRay-Signal EngTrq_Enbl_Rq_AS (Schnittstellenfehler im Motormomentenpfad Assistenzsysteme) vom ECM -SG (Motorsteuergerät) ist fehlerhaft. Brand | Network |
6Related codes
Browse Uxxx codes or U140xx codes.