P1039 – BMW DTC

BMW DTC P1039 – VVL-CAN-Timeout VVT-Desired Message (Bank 2)

DTC P1039 meaning on BMW

DTC P1039 on a BMW refers to a VVL-CAN-Timeout VVT-Desired Message error in Bank 2. This diagnostic trouble code indicates a communication issue within the Variable Valve Lift (VVL) system on the engine’s Bank 2 side. The VVL system is responsible for adjusting the valve lift to optimize engine performance and efficiency.

BMW DTC P1039 symptoms

Symptoms of DTC P1039 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 P1039 causes

The common causes of DTC P1039 on a BMW include:

• Faulty VVL solenoid
• Wiring or connection issues in the VVL system
• Defective VVL actuator
• Communication errors within the VVL system

BMW DTC P1039 seriousness

While DTC P1039 may not cause immediate drivability issues, it is important to address this fault promptly to prevent potential long-term engine damage. Ignoring this fault could lead to reduced engine performance and efficiency over time.

How to diagnose DTC P1039 on BMW

To diagnose DTC P1039 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s Engine Control Module (ECM).
2. Inspect the VVL system components on Bank 2, including the solenoid, actuator, and wiring for any visible damage or loose connections.
3. Perform a continuity test on the wiring harness to check for any open circuits or shorts.
4. Check the VVL system communication using a diagnostic tool to ensure proper data exchange.

How to fix DTC P1039 on BMW

To fix DTC P1039 on a BMW, consider the following steps:

1. Replace the faulty VVL solenoid or actuator on Bank 2.
2. Repair any damaged wiring or connections in the VVL system.
3. Clear the fault codes using a diagnostic scanner after completing the repairs.
4. Perform a test drive to ensure the issue has been resolved and the Check Engine Light does not reappear.

How to erase DTC P1039 on BMW

To erase DTC P1039 on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port.
2. Select the ¨Erase Codes¨ or ¨Clear Codes¨ function on the scanner.
3. Follow the on-screen prompts to confirm the deletion of the fault codes.
4. Once the codes are cleared, disconnect the scanner and start the engine to ensure the Check Engine Light is no longer illuminated.

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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