U1875 – BMW DTC

BMW DTC U1875 – Drive Motor ‘A’ Control Module Lost Communication with Hybrid Battery Control Module

DTC U1875 meaning on BMW

DTC U1875 on a BMW indicates that the Drive Motor ‘A’ Control Module has lost communication with the Hybrid Battery Control Module. This communication error can disrupt the proper functioning of the hybrid system in the vehicle.

BMW DTC U1875 symptoms

Symptoms of DTC U1875 on a BMW may include:

• Check Engine Light (CEL) illuminated
• Hybrid system warning light on
• Reduced hybrid system performance
• Difficulty starting the vehicle

BMW DTC U1875 causes

Possible causes of DTC U1875 on a BMW include:

• Faulty Drive Motor ‘A’ Control Module
• Issues with the Hybrid Battery Control Module
• Wiring or connection problems between the modules
• Software communication errors

BMW DTC U1875 seriousness

The seriousness of DTC U1875 on a BMW depends on the extent of the communication loss between the Drive Motor ‘A’ Control Module and the Hybrid Battery Control Module. Ignoring this issue can lead to further hybrid system malfunctions and potentially affect the vehicle’s drivability.

How to diagnose DTC U1875 on BMW

To diagnose DTC U1875 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes
2. Inspect the wiring and connections between the Drive Motor ‘A’ Control Module and the Hybrid Battery Control Module
3. Check for any software updates or reprogramming needed for the modules
4. Perform communication tests between the modules to identify the source of the issue

How to fix DTC U1875 on BMW

To fix DTC U1875 on a BMW, the following steps may be taken:

1. Repair or replace any faulty wiring or connections
2. Address any issues with the Drive Motor ‘A’ Control Module or the Hybrid Battery Control Module
3. Update software or reprogram the modules as necessary
4. Clear the fault codes and perform a test drive to ensure the issue is resolved

How to erase DTC U1875 on BMW

To erase DTC U1875 on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s system. After fixing the underlying issue causing the fault code, the mechanic can then reset the system and ensure that the DTC U1875 is no longer present.

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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