BMW DTC P1059 – VVL-Control Motor Supply Voltage Circuit Low (Bank 2)
DTC P1059 meaning on BMW
DTC P1059 for BMW refers to the VVL-Control Motor Supply Voltage Circuit Low on Bank 2. This diagnostic trouble code indicates that there is a low voltage condition detected in the Variable Valve Lift (VVL) system’s control motor supply circuit on the second bank of the engine.
BMW DTC P1059 symptoms
Symptoms of DTC P1059 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Engine misfires
- Rough idling
- Decreased fuel efficiency
BMW DTC P1059 causes
Common causes of DTC P1059 on a BMW include:
- Faulty VVL control motor
- Wiring issues in the VVL control motor circuit
- Low engine oil level or poor oil quality
- Electronic control module (ECM) failure
BMW DTC P1059 seriousness
DTC P1059 should not be ignored as it can lead to potential engine performance issues and may cause further damage if left unresolved. It is recommended to address this issue promptly to prevent any long-term problems.
How to diagnose DTC P1059 on BMW
To diagnose DTC P1059 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes and freeze frame data
- Inspect the VVL control motor and its wiring for any visible damage or loose connections
- Check the engine oil level and quality
- Test the VVL control motor’s resistance and voltage
- Inspect the ECM for any signs of malfunction
How to fix DTC P1059 on BMW
To fix DTC P1059 on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring in the VVL control motor circuit
- Replace the faulty VVL control motor if necessary
- Ensure the engine oil level is correct and of good quality
- If the ECM is faulty, it may need to be reprogrammed or replaced
How to erase DTC P1059 on BMW
To erase DTC P1059 on a BMW, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made, the code can be reset, and the Check Engine Light should turn off. It is important to ensure that the underlying issue causing the fault code has been resolved before clearing the code.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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