NetworkU1213
SeriousSeverity: Serious - have it checked soon
The information sent by the electronic stability program ECU is faulty.
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 17
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | U1213 | No description available | Network |
| Chery | U1213 | Lost communication with PCM Brand | Network |
| Daewoo | U1213 | Loss of serial communications for class 2 devices Brand | Network |
| DFFS | U1213 | Vehicle speed signal out of range Brand | Network |
| EOBD | U1213 | Ajonopeus Brand | Network |
| GM | U1213 | Loss of serial communications for class 2 devices Brand | Network |
| Holden | U1213 | Invalid Data Received From Electronic Brake Control Module Brand | Network |
| Maserati | U1213 | No description available | Network |
| Mitsubishi | U1213 | ASC torque request error Brand | Network |
| Opel | U1213 | Loss of serial communications for class 2 devices Brand | Network |
| Peugeot | U1213 | No description available | Network |
| Proton | U1213 | ASC torque request error Brand | Network |
| Saab | U1213 | Loss of serial communications for class 2 devices Brand | Network |
| Smart | U1213 | No description available | Network |
| Sprinter | U1213 | No description available | Network |
| Subaru | U1213 | No description available | Network |
| Toyota | U1213 | The information sent by the electronic stability program ECU is faulty. 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 1
These 7-character codes are manufacturer-specific variants of U1213 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | U121383 | CAN communication: Motor Control Unit (MCU) checksum error (3A3) Brand | Network |
6Related codes
Browse Uxxx codes or U121xx codes.