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P1720 – BMW DTC

BMW DTC P1720 – CAN Timeout Control Module

DTC P1720 meaning on BMW

The Diagnostic Trouble Code (DTC) P1720 for BMW refers to a CAN Timeout Control Module error. This code indicates that the control module is not receiving communication from the CAN (Controller Area Network) bus within the specified time frame.

BMW DTC P1720 symptoms

Symptoms of the BMW DTC P1720 may include:

  • Check Engine Light (MIL) illuminated
  • Loss of communication with control modules
  • Erratic behavior of vehicle systems

BMW DTC P1720 causes

Common causes of the BMW DTC P1720 include:

  • Faulty control module
  • Wiring or connection issues in the CAN bus network
  • Interference or signal disruption in the communication network

BMW DTC P1720 seriousness

The DTC P1720 for BMW should be addressed promptly as it can lead to communication failures between critical control modules, affecting the proper functioning of various vehicle systems.

How to diagnose DTC P1720 on BMW

To diagnose the DTC P1720 on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes
  2. Check for any other related DTCs present
  3. Inspect the wiring and connections in the CAN bus network
  4. Test the control module for proper functionality

How to fix DTC P1720 on BMW

To fix the DTC P1720 on a BMW, you may need to:

  1. Repair or replace any damaged wiring or connections in the CAN bus network
  2. Replace the faulty control module if necessary
  3. Ensure proper grounding and shielding of the communication network

How to erase DTC P1720 on BMW

To erase the DTC P1720 on a BMW, you can:

  1. Use a diagnostic scanner to clear the fault codes
  2. Verify that the issue has been resolved by performing a test drive
  3. If the fault code reappears, further diagnosis may be required

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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