BMW DTC P1372 – Ionic Current Signal Amplification Control Circuit Open (Bank 1)
DTC P1372 meaning on BMW
The Diagnostic Trouble Code (DTC) P1372 for BMW refers to the Ionic Current Signal Amplification Control Circuit Open on Bank 1. This code indicates that there is an issue with the circuit responsible for amplifying the ionic current signal in the engine control module.
BMW DTC P1372 symptoms
Symptoms of DTC P1372 on a BMW may include:
- Check Engine Light (MIL) illuminated
- Engine running rough or misfiring
- Reduced engine performance
- Potential stalling or difficulty starting the engine
BMW DTC P1372 causes
Common causes of DTC P1372 on a BMW include:
- Faulty ionic current signal amplifier
- Wiring or connection issues in the circuit
- Defective engine control module (ECM)
BMW DTC P1372 seriousness
DTC P1372 should not be ignored as it can lead to poor engine performance and potential drivability issues. Ignoring this code may result in further damage to engine components over time.
How to diagnose DTC P1372 on BMW
To diagnose DTC P1372 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the wiring and connections related to the ionic current signal amplifier circuit
- Test the ionic current signal amplifier for proper function
- Check the engine control module for any faults
How to fix DTC P1372 on BMW
To fix DTC P1372 on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring or connections in the circuit
- Replace the faulty ionic current signal amplifier if necessary
- If the engine control module is at fault, it may need to be reprogrammed or replaced
How to erase DTC P1372 on BMW
To erase DTC P1372 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made, the codes can be reset, and the Check Engine Light should turn off if the issue 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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.