P105A – BMW DTC

BMW DTC P105A – Internal Control Module VVL Error, Current Too High

DTC P105A meaning on BMW

The DTC P105A on a BMW refers to an Internal Control Module Variable Valve Lift (VVL) Error, indicating that the current flowing through the control module for the variable valve lift system is too high.

BMW DTC P105A symptoms

Symptoms of the DTC P105A on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Engine misfires
• Increased fuel consumption

BMW DTC P105A causes

Common causes of the DTC P105A on a BMW include:

• Faulty variable valve lift control module
• Short circuit or high resistance in the wiring related to the variable valve lift system
• Issues with the variable valve lift solenoid

BMW DTC P105A seriousness

The DTC P105A should be addressed promptly as it can lead to reduced engine performance and potential long-term damage to the variable valve lift system if left unresolved.

How to diagnose DTC P105A on BMW

To diagnose the DTC P105A on a BMW, a mechanic would typically perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and related data
2. Inspect the wiring and connectors associated with the variable valve lift system for any visible damage or corrosion
3. Test the variable valve lift control module and solenoid for proper operation

How to fix DTC P105A on BMW

To fix the DTC P105A on a BMW, the following steps may be taken:

1. Replace the faulty variable valve lift control module if diagnosed as the root cause
2. Repair any wiring issues or replace damaged connectors in the variable valve lift system
3. Replace the variable valve lift solenoid if found to be faulty

How to erase DTC P105A on BMW

To erase the DTC P105A 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 to ensure the issue has been resolved.

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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