BMW DTC P1152 – O2 Sensor Heater Circuit Low Voltage (Bank 2 Sensor 1)
DTC P1152 meaning on BMW
DTC P1152 on a BMW indicates an issue with the O2 sensor heater circuit for Bank 2 Sensor 1. This fault code specifically points to low voltage detected in the O2 sensor heater circuit.
BMW DTC P1152 symptoms
Symptoms of DTC P1152 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Poor fuel economy
- Engine running rough or misfiring
- Reduced engine performance
BMW DTC P1152 causes
Common causes of DTC P1152 on a BMW include:
- Faulty O2 sensor heater
- Wiring or connector issues in the O2 sensor heater circuit
- Blown fuse related to the O2 sensor heater circuit
BMW DTC P1152 seriousness
While DTC P1152 may not cause immediate drivability issues, it can lead to poor engine performance and increased emissions. Ignoring this fault code can result in further damage to the vehicle over time.
How to diagnose DTC P1152 on BMW
To diagnose DTC P1152 on a BMW, you can:
- Use a diagnostic scanner to read the fault code and check freeze frame data
- Inspect the O2 sensor heater circuit wiring and connectors for any damage or corrosion
- Test the O2 sensor heater for proper resistance
- Check the fuse related to the O2 sensor heater circuit
How to fix DTC P1152 on BMW
To fix DTC P1152 on a BMW, you can:
- Replace the faulty O2 sensor heater
- Repair or replace any damaged wiring or connectors in the O2 sensor heater circuit
- Replace the blown fuse if necessary
How to erase DTC P1152 on BMW
To erase DTC P1152 on a BMW, you can:
- Use a diagnostic scanner to clear the fault code
- After fixing the underlying issue, clear the code and perform a test drive to ensure the problem is 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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