U1152 – BMW DTC

BMW DTC U1152 – Message Monitoring Throttle Actuator Alive Check (Bank 2)

DTC U1152 meaning on BMW

DTC U1152 on a BMW refers to the Message Monitoring Throttle Actuator Alive Check for Bank 2. This diagnostic trouble code indicates that there is an issue with the communication between the engine control module (ECM) and the throttle actuator in Bank 2 of the vehicle.

BMW DTC U1152 symptoms

Symptoms of DTC U1152 on a BMW may include:

• Engine hesitation or lack of response
• Reduced engine power
• Check Engine Light (CEL) illuminated on the dashboard
• Difficulty accelerating

BMW DTC U1152 causes

Common causes of DTC U1152 on a BMW include:

• Faulty throttle actuator in Bank 2
• Wiring or connection issues between the ECM and throttle actuator
• ECM software or hardware malfunction

BMW DTC U1152 seriousness

DTC U1152 should be addressed promptly as it can lead to drivability issues and potential engine damage if left unresolved. Ignoring this code may result in further complications and increased repair costs.

How to diagnose DTC U1152 on BMW

To diagnose DTC U1152 on a BMW, a mechanic would typically perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ECM
2. Inspect the wiring and connections between the ECM and throttle actuator in Bank 2
3. Test the throttle actuator for proper operation
4. Check for any software updates or recalibrations needed for the ECM

How to fix DTC U1152 on BMW

To fix DTC U1152 on a BMW, the following steps may be taken:

1. Replace the faulty throttle actuator in Bank 2
2. Repair any damaged wiring or connections between the ECM and throttle actuator
3. Update the ECM software if necessary
4. Perform a throttle actuator adaptation or calibration procedure

How to erase DTC U1152 on BMW

After addressing the underlying issue causing DTC U1152 on a BMW, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow for a fresh monitoring cycle to ensure the problem has been resolved.

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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