NetworkU1437
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 10
| Brand | Code | Description | System |
|---|---|---|---|
| BYD | U1437 | Dynamic Range Error Brand | Network |
| Chery | U1437 | Dynamic Range Error Brand | Network |
| Chrysler | U1437 | implausible intake air temperature message received Brand | Network |
| DFFX | U1437 | Dynamic Range Error Brand | Network |
| EOBD | U1437 | Dynamic range error Brand | Network |
| Geely | U1437 | Dynamic Range Error Brand | Network |
| Great Wall | U1437 | Dynamic Range Error Brand | Network |
| Hafei | U1437 | Dynamic Range Error Brand | Network |
| Mitsubishi | U1437 | Dynamic range error Brand | Network |
| Proton | U1437 | Dynamic range error Brand | 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 13
These 7-character codes are manufacturer-specific variants of U1437 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | U143729 | Botschaften vom LRL SG wird mit ungültigem Wert oder Fehler gesendet Brand | Network |
| Mercedes-Benz | U143741 | Botschaft vom LRL-Steuergerät zeigen einen Fehler im Botschaftszähler oder CRC-Fehler Brand | Network |
| Mercedes-Benz | U143771 | Implausible data were received from the control unit 'Lidar'. The actuator is blocked. Brand | Network |
| Mercedes-Benz | U14378F | Botschaft vom LRL SG werden mit zu altem Zeitstempel empfangen Brand | Network |
| Mercedes-Benz | U14379A | Implausible data were received from the control unit 'Lidar'. The operating conditions for the component or the system are not satisfied. Brand | Network |
| Mercedes-Benz | U1437E0 | Zeitsynchronisation des LIDAR-Sensors meldet Fehler. Brand | Network |
| Mercedes-Benz | U1437E1 | Botschaft vom LRL SG wird zeitweise nicht empfangen Brand | Network |
| Mercedes-Benz | U1437E2 | Botschaften vom LRL-Steuergerät zeigen einen Fehler an Brand | Network |
| Mercedes-Benz | U1437E3 | Das Signal MIC_LRL_DetRange zeigt einen Fehler an Brand | Network |
| Mercedes-Benz | U1437E4 | Das Signal MIC_LRL_SWM zeigt einen Fehler an Brand | Network |
| Mercedes-Benz | U1437E5 | Botschaften vom LRL SG führen in der IDC zu einem Signalfehler Brand | Network |
| Mercedes-Benz | U1437E6 | Botschaften vom LRL SG werden mit ungültigem Wert oder Fehler gesendet Brand | Network |
| Mercedes-Benz | U1437E7 | Botschaft vom LRL SG wird zeitweise nicht empfangen Brand | Network |
6Related codes
Browse Uxxx codes or U143xx codes.