BMW DTC U0553 – Invalid Data Received From Lighting Control Module – Rear ‘B’
DTC U0553 meaning on BMW
DTC U0553 on a BMW indicates that the Engine Control Module (ECM) has detected invalid data from the Lighting Control Module – Rear ‘B’. This means that there is a communication error between the ECM and the rear lighting control module, which could affect the proper functioning of the vehicle’s lighting system.
BMW DTC U0553 symptoms
Symptoms of DTC U0553 on a BMW may include:
- Malfunctioning rear lights
- Erratic behavior of the lighting system
- Dashboard warning light related to lighting system
BMW DTC U0553 causes
The possible causes of DTC U0553 on a BMW include:
- Faulty rear lighting control module
- Wiring issues or loose connections between the ECM and the lighting control module
- Software glitches in the ECM or lighting control module
BMW DTC U0553 seriousness
While DTC U0553 may not directly affect the drivability of the vehicle, it is important to address this issue promptly as it can compromise the safety of the vehicle, especially in low visibility conditions.
How to diagnose DTC U0553 on BMW
To diagnose DTC U0553 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM
- Inspect the wiring and connections between the ECM and the rear lighting control module
- Test the functionality of the rear lighting control module
- Check for any software updates or reprogramming needed for the ECM or lighting control module
How to fix DTC U0553 on BMW
To fix DTC U0553 on a BMW, the following steps may be taken:
- Repair or replace any faulty wiring or connections between the ECM and the lighting control module
- Replace the rear lighting control module if it is found to be defective
- Perform any necessary software updates or reprogramming for the ECM and lighting control module
How to erase DTC U0553 on BMW
To erase DTC U0553 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made, the mechanic can reset the fault codes, and the warning light should no longer be illuminated.
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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