BMW DTC P1623 – Pedal Position Sensor Potentiometer Supply
DTC P1623 meaning on BMW
DTC P1623 on a BMW indicates an issue with the Pedal Position Sensor Potentiometer Supply. This fault code is triggered when the Engine Control Module (ECM) detects a problem with the supply voltage to the pedal position sensor potentiometer.
BMW DTC P1623 symptoms
Symptoms of DTC P1623 on a BMW may include:
- Reduced engine power
- Engine stalling
- Difficulty accelerating
- Illuminated Check Engine Light
BMW DTC P1623 causes
Common causes of DTC P1623 on a BMW include:
- Faulty pedal position sensor potentiometer
- Wiring or connector issues in the sensor circuit
- ECM malfunction
BMW DTC P1623 seriousness
DTC P1623 should be addressed promptly as it can lead to drivability issues and potential safety concerns. Ignoring this fault code may result in further damage to the vehicle and could compromise the vehicle’s performance.
How to diagnose DTC P1623 on BMW
To diagnose DTC P1623 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the wiring and connectors related to the pedal position sensor
- Test the pedal position sensor potentiometer for proper voltage and resistance
- Check for any other related fault codes that may provide additional clues
How to fix DTC P1623 on BMW
To fix DTC P1623 on a BMW, you can try the following solutions:
- Replace the faulty pedal position sensor potentiometer
- Repair any damaged wiring or connectors in the sensor circuit
- If the ECM is determined to be faulty, consider replacing or reprogramming it
How to erase DTC P1623 on BMW
To erase DTC P1623 on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM’s memory. After addressing the underlying issue that caused the fault code, you can reset the ECM and verify that the code does not return.
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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