P1E42 – BMW DTC

BMW DTC P1E42 – Drive Motor ‘B’ Control Module Hardware Error

DTC P1E42 meaning on BMW

The DTC P1E42 error code on BMW vehicles indicates a Drive Motor ‘B’ Control Module Hardware Error. This fault code is specific to issues related to the control module hardware of the drive motor ‘B’ in the vehicle’s electric powertrain system.

BMW DTC P1E42 symptoms

Symptoms of the BMW DTC P1E42 error code may include:

• Reduced power or performance of the electric drive system
• Warning lights illuminated on the dashboard
• Vehicle going into a reduced power or limp mode

BMW DTC P1E42 causes

Common causes of the BMW DTC P1E42 error code include:

• Faulty drive motor ‘B’ control module hardware
• Wiring or connection issues related to the control module
• Internal control module malfunctions

BMW DTC P1E42 seriousness

The DTC P1E42 error code should be addressed promptly as it can lead to reduced performance and drivability issues in the electric powertrain system of the BMW vehicle. Ignoring this fault may result in further damage to the control module or other components.

How to diagnose DTC P1E42 on BMW

To diagnose the DTC P1E42 error code on a BMW, a comprehensive diagnostic scan tool capable of reading manufacturer-specific codes is required. The following steps can be taken:

1. Perform a full system scan to retrieve the fault codes
2. Inspect the wiring and connections related to the drive motor ‘B’ control module
3. Check the control module for any visible signs of damage or corrosion

How to fix DTC P1E42 on BMW

To fix the DTC P1E42 error code on a BMW, the following steps can be taken:

1. Replace the faulty drive motor ‘B’ control module hardware
2. Repair any damaged wiring or connections associated with the control module
3. If necessary, reprogram or reset the control module to clear the error code

How to erase DTC P1E42 on BMW

To erase the DTC P1E42 error code on a BMW, follow these steps:

1. Use a diagnostic scan tool to clear the fault codes from the vehicle’s system
2. Ensure that the underlying issue causing the fault code has been addressed
3. Perform a test drive to confirm that the error code does not reappear

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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