NetworkU1601
SeriousSeverity: Serious - have it checked soon
Frequency
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 28
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | U1601 | EEPROM Checksum error Brand | Network |
| Mercedes-Benz | U1601 | Frequency Brand | Network |
| BYD | U1601 | temperature Brand | Network |
| Chery | U1601 | MBUSY short Brand | Network |
| Daewoo | U1601 | No description available | Network |
| DFFS | U1601 | Internal CAN network L2 function message is lost Brand | Network |
| DFFX | U1601 | MBUSY short Brand | Network |
| EOBD | U1601 | CAN linka Brand | Network |
| Geely | U1601 | MBUSY short Brand | Network |
| GM | U1601 | No description available | Network |
| Great Wall | U1601 | MBUSY short Brand | Network |
| Hafei | U1601 | MBUSY short Brand | Network |
| Holden | U1601 | CAN Bus Communication Brand | Network |
| Honda | U1601 | No description available | Network |
| Hyundai | U1601 | No description available | Network |
| Mahindra | U1601 | No description available | Network |
| Maserati | U1601 | ECU Application Software Code 1 Missing or Corrupted Brand | Network |
| Mitsubishi | U1601 | MBUSY short Brand | Network |
| Opel | U1601 | No description available | Network |
| Peugeot | U1601 | No description available | Network |
| Proton | U1601 | MBUSY short Brand | Network |
| Saab | U1601 | No description available | Network |
| MG (SAIC) | U1601 | CAN bus off Brand | Network |
| Smart | U1601 | No description available | Network |
| Sprinter | U1601 | No description available | Network |
| Subaru | U1601 | No description available | Network |
| Suzuki | U1601 | No description available | Network |
| Tata | U1601 | Diagnosis Of CAN Line 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 4
These 7-character codes are manufacturer-specific variants of U1601 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | U160100 | Interner Fehler aufgetreten, Software-überwachung Brand | Network |
| SsangYong | U160100 | Vehicle Control Unit (VCU) communication lost Brand | Network |
| SsangYong | U160141 | DTC snapshot history content for cyber security attacks Brand | Network |
| SsangYong | U160187 | CAN communication: left front side Blind Spot Detection (BSD) local CAN - timeout Brand | Network |
6Related codes
Browse Uxxx codes or U160xx codes.