U112C – BMW DTC

BMW DTC U112C – Lost Communication With Heat Flow/Load Moment A/C

DTC U112C meaning on BMW

The DTC U112C code on a BMW indicates a communication error with the Heat Flow/Load Moment A/C system. This means that the vehicle’s onboard computer is unable to receive or transmit data properly with this specific component, leading to potential issues with the heating and air conditioning system.

BMW DTC U112C symptoms

Symptoms of the DTC U112C code on a BMW may include:

• Malfunctioning heating or air conditioning system
• Inconsistent temperature control
• Failure of the A/C system to respond to commands
• Dashboard warning light related to the HVAC system

BMW DTC U112C causes

The DTC U112C code on a BMW can be triggered by various factors, including:

• Faulty wiring or connections in the Heat Flow/Load Moment A/C system
• Defective A/C control module
• Communication bus issues within the vehicle’s network
• Software glitches in the HVAC system

BMW DTC U112C seriousness

While the DTC U112C code may not directly affect the drivability of the vehicle, it can lead to discomfort for the occupants if the heating or air conditioning system is not functioning properly. It is recommended to address this issue to ensure the HVAC system operates correctly.

How to diagnose DTC U112C on BMW

To diagnose the DTC U112C code on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the specific fault codes stored in the vehicle’s computer
2. Inspect the wiring and connections related to the Heat Flow/Load Moment A/C system for any visible damage or corrosion
3. Check the A/C control module for proper functionality
4. Conduct a communication network test to identify any bus communication issues

How to fix DTC U112C on BMW

To fix the DTC U112C code on a BMW, the following steps may be taken:

1. Repair or replace any damaged wiring or connections in the Heat Flow/Load Moment A/C system
2. Replace the faulty A/C control module if necessary
3. Address any communication bus issues within the vehicle’s network
4. Update or reprogram the software in the HVAC system to resolve any glitches

How to erase DTC U112C on BMW

To erase the DTC U112C code on a BMW, a mechanic can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. Once the underlying issue has been addressed and fixed, the code can be erased to reset the system and ensure proper operation of the HVAC 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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