U1228 – BMW DTC

BMW DTC U1228 – Lost Communication With Drive Start Power Status

DTC U1228 meaning on BMW

The Diagnostic Trouble Code (DTC) U1228 for BMW indicates a communication error with the Drive Start Power Status module. This code is triggered when the vehicle’s onboard computer system is unable to establish communication with the Drive Start Power Status module, which is responsible for monitoring the power status during the vehicle’s start-up process.

BMW DTC U1228 symptoms

Symptoms associated with the BMW DTC U1228 may include:

• Engine starting issues
• Intermittent or constant check engine light
• Loss of power during acceleration
• Unusual behavior of electrical components

BMW DTC U1228 causes

The potential causes of the BMW DTC U1228 may include:

• Faulty Drive Start Power Status module
• Wiring or connection issues between the module and the vehicle’s computer system
• Interference from other electronic components

BMW DTC U1228 seriousness

The DTC U1228 for BMW should be addressed promptly to prevent potential issues with the vehicle’s starting system and overall performance. Ignoring this code may lead to further electrical problems and potential safety concerns while driving.

How to diagnose DTC U1228 on BMW

To diagnose the DTC U1228 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the specific fault codes stored in the vehicle’s computer system.
2. Inspect the wiring and connections related to the Drive Start Power Status module for any visible damage or loose connections.
3. Perform a communication test to check for proper connectivity between the module and the vehicle’s computer system.

How to fix DTC U1228 on BMW

To fix the DTC U1228 on a BMW, consider the following steps:

1. Replace the faulty Drive Start Power Status module if necessary.
2. Repair any damaged wiring or connections associated with the module.
3. Clear the fault codes using a diagnostic scanner after completing the repairs.

How to erase DTC U1228 on BMW

To erase the DTC U1228 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 scanner’s menu.
3. Follow the on-screen instructions to erase the DTC U1228 code from the vehicle’s computer system.

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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