A BMW P1055 Code is an error code commonly seen in BMW vehicles. This code is caused by the Valvetronic (VVT) Supply Voltage Control Motor High Input (Bank 1). When the key is turned on for 200ms, the DME detects that the supply voltage is too high (more than 17 volts). This jump-start detection throws a fault if there are 24 volts of power for longer than 21 seconds. If this code is displayed, the engine control module (ECM) has detected a voltage issue with the engine. It is important to address this issue immediately, as it can cause serious damage to the engine and other components of the vehicle.
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Causes and Solutions for BMW P1055 Code
| Cause | Solution |
|---|---|
| Faulty Valvetronic system | Replace or repair Valvetronic system components |
| Loose or corroded battery cables | Tighten or replace corroded battery cables |
| Faulty ECM | Replace or repair ECM |
| Faulty wiring | Replace or repair faulty wiring |
BMW P1055 Code is an error code usually associated with the Valvetronic (VVT) Supply Voltage Control Motor High Input (Bank 1). This code is triggered when the key is turned on for 200ms, and the DME detects that the supply voltage is too high (more than 17 volts). If this code is present, the engine control module (ECM) has seen a voltage issue with the engine and must be addressed before further damage. Common causes of this code include faulty Valvetronic system components, loose or corroded battery cables, faulty ECM, and faulty wiring. The solutions for this code vary depending on the cause, such as replacing or repairing Valvetronic system components, tightening or replacing corroded battery cables, replacing or repairing ECM, and replacing or repairing faulty wiring.
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Conclusion
The BMW P1055 Code is an error code commonly seen in BMW vehicles and caused by the Valvetronic (VVT) Supply Voltage Control Motor High Input (Bank 1). If this code is present, the engine control module (ECM) has detected a voltage issue with the engine and must be addressed immediately to prevent further damage. Common causes of this code include faulty Valvetronic system components, loose or corroded battery cables, faulty ECM, and faulty wiring. To address this issue, the solutions vary depending on the cause, such as replacing or repairing Valvetronic system components, tightening or replacing corroded battery cables, replacing or repairing ECM, and replacing or repairing faulty wiring. If a BMW owner encounters the BMW P1055 Code, they should take the necessary steps to address the issue and prevent further damage.
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