BMW DTC P264D – ‘A’ Rocker Arm Actuator Position Sensor Circuit High (Bank 1)
DTC P264D meaning on BMW
The Diagnostic Trouble Code (DTC) P264D for BMW indicates a fault with the ‘A’ Rocker Arm Actuator Position Sensor Circuit High on Bank 1. This means that the engine control module (ECM) has detected a high voltage signal from the sensor that monitors the position of the ‘A’ rocker arm actuator on Bank 1 of the engine.
BMW DTC P264D symptoms
Symptoms of the DTC P264D on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Engine misfires
- Rough idling
BMW DTC P264D causes
Common causes of the DTC P264D on a BMW include:
- Faulty ‘A’ rocker arm actuator position sensor
- Wiring or connector issues in the sensor circuit
- ECM software or hardware problems
BMW DTC P264D seriousness
The DTC P264D should not be ignored as it can lead to engine performance issues and potential damage if left unresolved. It is recommended to address this fault promptly to prevent further complications.
How to diagnose DTC P264D on BMW
To diagnose the DTC P264D on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM
- Inspect the wiring and connectors related to the ‘A’ rocker arm actuator position sensor
- Test the sensor for proper operation using a multimeter
- Check for any visible signs of damage or corrosion in the sensor circuit
How to fix DTC P264D on BMW
To fix the DTC P264D on a BMW, you can try the following:
- Replace the faulty ‘A’ rocker arm actuator position sensor
- Repair any damaged wiring or connectors in the sensor circuit
- Clear the fault codes using a diagnostic scanner after the repair
- Perform a test drive to ensure the issue has been resolved
How to erase DTC P264D on BMW
To erase the DTC P264D on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. Make sure the underlying issue has been addressed before clearing the codes to prevent the Check Engine Light from reappearing.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.