U1224 – BMW DTC

BMW DTC U1224 – Lost Communication With 10ms Task From Slave

DTC U1224 meaning on BMW

The DTC U1224 code on a BMW indicates a communication error with the 10ms task from a slave module. This means that the control module in question is not receiving the expected data or signals from the specified slave module within the allotted time frame.

BMW DTC U1224 symptoms

Symptoms of the DTC U1224 code on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Loss of communication with certain vehicle systems
• Erratic behavior of electronic components

BMW DTC U1224 causes

Common causes of the DTC U1224 code on a BMW include:

• Faulty wiring or connections
• Defective control module
• Interference from other electronic devices

BMW DTC U1224 seriousness

The seriousness of the DTC U1224 code on a BMW depends on the extent of the communication failure and the systems affected. While it may not always result in immediate drivability issues, it is important to address the underlying cause to prevent potential malfunctions or safety concerns.

How to diagnose DTC U1224 on BMW

To diagnose the DTC U1224 code on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
2. Inspect the wiring and connections related to the affected control module and slave module.
3. Perform a communication test to identify the source of the communication error.

How to fix DTC U1224 on BMW

To fix the DTC U1224 code on a BMW, consider the following:

1. Repair any damaged wiring or connections.
2. Replace the faulty control module or slave module if necessary.
3. Clear the fault codes using a diagnostic scanner after the repairs are completed.

How to erase DTC U1224 on BMW

To erase the DTC U1224 code on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port.
2. Select the option to clear fault codes from the control module menu.
3. Confirm the action and wait for the scanner to erase the DTC U1224 code.

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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