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P1122 – BMW DTC

BMW DTC P1122 – Pedal Position Sensor 1 Circuit Low

DTC P1122 meaning on BMW

The Diagnostic Trouble Code (DTC) P1122 for BMW refers to an issue with the Pedal Position Sensor 1 Circuit being detected as low. This code indicates that the signal from the pedal position sensor is below the expected range, potentially causing drivability issues.

BMW DTC P1122 symptoms

Symptoms of a DTC P1122 on a BMW may include:

  • Reduced engine power
  • Difficulty accelerating
  • Check Engine Light (CEL) illuminated
  • Unresponsive throttle

BMW DTC P1122 causes

Common causes of a DTC P1122 on a BMW include:

  • Faulty pedal position sensor
  • Wiring or connection issues in the sensor circuit
  • Corrosion or damage to sensor components

BMW DTC P1122 seriousness

The seriousness of a DTC P1122 on a BMW lies in the potential drivability issues it can cause. If left unresolved, it can lead to reduced engine performance and safety concerns. It is recommended to address this issue promptly.

How to diagnose DTC P1122 on BMW

To diagnose a DTC P1122 on a BMW, you can perform the following steps:

  1. Use a diagnostic scanner to retrieve the fault code
  2. Inspect the pedal position sensor and its wiring for any visible damage
  3. Test the sensor’s output voltage with a multimeter
  4. Check for any loose connections or corrosion in the sensor circuit

How to fix DTC P1122 on BMW

To fix a DTC P1122 on a BMW, you can try the following solutions:

  1. Replace the faulty pedal position sensor
  2. Repair or replace any damaged wiring or connections in the sensor circuit
  3. Clean any corrosion from sensor components

How to erase DTC P1122 on BMW

To erase a DTC P1122 on a BMW, you can use a diagnostic scanner to clear the fault code from the vehicle’s memory. Once the issue has been addressed and fixed, clearing the code will reset the Check Engine Light and ensure the repair was successful.

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

← All BMW Diagnostic Trouble Codes

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