P1AF6 – BMW DTC

BMW DTC P1AF6 – Drive Motor ‘B’ Voltage Isolation Sensor Circuit Low

DTC P1AF6 meaning on BMW

The DTC P1AF6 code on a BMW indicates an issue with the Drive Motor ‘B’ Voltage Isolation Sensor Circuit being detected as low. This means that there is a problem with the voltage isolation sensor circuit for the drive motor ‘B’ in the vehicle.

BMW DTC P1AF6 symptoms

Symptoms of the BMW DTC P1AF6 code may include:

• Check Engine Light illuminated on the dashboard
• Reduced power or performance
• Vehicle may go into a reduced power mode

BMW DTC P1AF6 causes

Common causes of the BMW DTC P1AF6 code include:

• Faulty drive motor ‘B’ voltage isolation sensor
• Wiring or connection issues in the voltage isolation sensor circuit
• Electrical problems in the drive motor ‘B’ system

BMW DTC P1AF6 seriousness

The DTC P1AF6 code should be addressed promptly as it can lead to reduced performance and potential drivability issues. Ignoring this code may result in further damage to the drive motor ‘B’ system.

How to diagnose DTC P1AF6 on BMW

To diagnose the DTC P1AF6 code on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes
2. Inspect the drive motor ‘B’ voltage isolation sensor and its circuit for any visible damage or loose connections
3. Test the voltage isolation sensor for proper operation
4. Check the wiring harness and connectors for any signs of wear or corrosion

How to fix DTC P1AF6 on BMW

To fix the DTC P1AF6 code on a BMW, the following steps may be taken:

1. Replace the faulty drive motor ‘B’ voltage isolation sensor
2. Repair any damaged wiring or connectors in the voltage isolation sensor circuit
3. Clear the fault codes using a diagnostic scanner

How to erase DTC P1AF6 on BMW

To erase the DTC P1AF6 code on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault codes
2. Ensure that the underlying issue causing the fault code has been addressed
3. Perform a test drive to verify that the code does not return

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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