Audi P1857: Load Signal Error Message From Engine Control
Is your scanner showing Audi P1857?
No worries. We'll show you what it means and how to deal with it.
Audi P1857: Load Signal Error Message From Engine Control
OVERVIEWWhat Does The Audi P1857 Code Mean?
The Engine Control Module (ECM) communicates with all databus-capable control modules via a CAN databus. These databus-capable control modules are connected via two data bus wires which are twisted together (CAN_High and CAN_Low), and exchange information.
What Are The Potential Causes Of The Audi P1857 Code?
- Intake Manifold Runner Position Sensor is faulty
- Intake system has leaks (false air)
- Motor for intake flap is faulty
- Mass Air Flow (MAF) sensor has failed
- ECM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Audi P1857, DTCDECODE.
