NetworkU1427
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 13
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | U1427 | No description available | Network |
| BYD | U1427 | Dynamic Range Error Brand | Network |
| Chery | U1427 | Dynamic Range Error Brand | Network |
| DFFX | U1427 | Dynamic Range Error Brand | Network |
| EOBD | U1427 | Motorkoppelsignaalfout Brand | Network |
| Geely | U1427 | Dynamic Range Error Brand | Network |
| Great Wall | U1427 | Dynamic Range Error Brand | Network |
| Hafei | U1427 | Dynamic Range Error Brand | Network |
| Mitsubishi | U1427 | Dynamic range error Brand | Network |
| Peugeot | U1427 | No description available | Network |
| Proton | U1427 | Dynamic range error Brand | Network |
| MG (SAIC) | U1427 | Static Torque Invalid Brand | Network |
| Smart | U1427 | 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 10
These 7-character codes are manufacturer-specific variants of U1427 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | U142700 | Implausible data were received from control unit 'Audio or COMAND'. Brand | Network |
| Mercedes-Benz | U142702 | Implausible data were received from control unit 'Audio or COMAND'. There is a general signal fault. Brand | Network |
| Mercedes-Benz | U142703 | Implausible data were received from control unit 'Audio or COMAND'. There is a frequency or pulse width modulation fault. Brand | Network |
| Mercedes-Benz | U142731 | Unplausible Daten wurden vom Steuergerät 'Headunit' empfangen. Das Signal ist nicht vorhanden. Brand | Network |
| Mercedes-Benz | U142781 | Unplausible Daten wurden vom Steuergerät 'Headunit' empfangen. Falsche Daten wurden empfangen. Brand | Network |
| Mercedes-Benz | U142782 | Implausible data were received from the control unit 'Head unit'. The instruction counter is not updated. Brand | Network |
| Mercedes-Benz | U142783 | Implausible data were received from the control unit 'Head unit'. The checksum for the message has an incorrect value. Brand | Network |
| Mercedes-Benz | U14278F | Signale der HU werden mit zu altem Zeitstempel empfangen Brand | Network |
| Mercedes-Benz | U142794 | Implausible data were received from the control unit Head unit. There is an unexpected instruction. Brand | Network |
| Mercedes-Benz | U1427E5 | Das Signal INP_Micro_Siren_Avl oder GRD_M_EI_Micro_Siren_TmStmp_ST3 des Steuergerätes HU_MICRO zeigt einen Fehler an, oder das Signal LCA_Md_DrvCfg_Rq_L2P_ST3 zeigt einen Fehler im Subscription State der Funktion L2P an. Brand | Network |
6Related codes
Browse Uxxx codes or U142xx codes.