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U3501 – BMW DTC

BMW DTC U3501 – Control Module Input Power ‘A’ Circuit Low

DTC U3501 meaning on BMW

DTC U3501 on a BMW refers to the Control Module Input Power ‘A’ Circuit Low. This diagnostic trouble code indicates that the power input to a specific control module is lower than the expected threshold.

BMW DTC U3501 symptoms

Symptoms of DTC U3501 on a BMW may include:

  • Check Engine Light (MIL) illuminated
  • Reduced engine performance
  • Electrical malfunctions

BMW DTC U3501 causes

Common causes of DTC U3501 on a BMW include:

  • Faulty control module
  • Wiring or connection issues
  • Defective power supply

BMW DTC U3501 seriousness

The seriousness of DTC U3501 on a BMW depends on the specific control module affected and the extent of the power input issue. Ignoring this DTC can lead to further electrical problems and potential vehicle performance issues.

How to diagnose DTC U3501 on BMW

To diagnose DTC U3501 on a BMW, follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes.
  2. Inspect the wiring and connections related to the affected control module.
  3. Check the power supply to the control module for proper voltage.

How to fix DTC U3501 on BMW

To fix DTC U3501 on a BMW, consider the following:

  1. Repair or replace any damaged wiring or connections.
  2. Test and replace the control module if necessary.
  3. Ensure the power supply to the control module is functioning correctly.

How to erase DTC U3501 on BMW

To erase DTC U3501 on a BMW, use a diagnostic scanner to clear the fault codes after the underlying issue has been resolved. This will reset the Check Engine Light and remove the DTC from the vehicle’s memory.

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

← All BMW Diagnostic Trouble Codes

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