P1624 – BMW DTC

BMW DTC P1624 – Pedal Position Sensor Potentiometer Supply Channel 1 Electrical (M52: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature))

DTC P1624 meaning on BMW

The DTC P1624 code on a BMW indicates an issue with the Pedal Position Sensor Potentiometer Supply Channel 1 Electrical related to the M52 Coolant Thermostat. Specifically, it points to a problem with the coolant temperature being below the thermostat regulating temperature.

BMW DTC P1624 symptoms

Some common symptoms associated with the BMW DTC P1624 code may include:

• Check Engine Light illuminated on the dashboard
• Engine running rough or misfiring
• Reduced engine performance
• Difficulty starting the vehicle

BMW DTC P1624 causes

The potential causes of the BMW DTC P1624 code can include:

• Faulty Pedal Position Sensor Potentiometer
• Issues with the coolant thermostat
• Wiring or connection problems in the sensor circuit

BMW DTC P1624 seriousness

While the BMW DTC P1624 code may not always result in immediate drivability issues, it is important to address it promptly to prevent potential damage to the engine or other components. Ignoring the code could lead to more severe problems over time.

How to diagnose DTC P1624 on BMW

Diagnosing the DTC P1624 code on a BMW typically involves the following steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer
2. Inspect the Pedal Position Sensor Potentiometer and its wiring for any visible damage or corrosion
3. Check the coolant thermostat for proper operation and correct temperature readings
4. Perform a thorough inspection of the sensor circuit for any loose connections or shorts

How to fix DTC P1624 on BMW

Fixing the BMW DTC P1624 code may require the following actions:

1. Replace the faulty Pedal Position Sensor Potentiometer if necessary
2. Repair or replace any damaged wiring or connections in the sensor circuit
3. Ensure the coolant thermostat is functioning correctly and replace if needed
4. Clear the fault codes from the vehicle’s computer after completing the repairs

How to erase DTC P1624 on BMW

To erase the DTC P1624 code on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. Once the repairs have been made and the underlying issue resolved, clearing the codes will reset the Check Engine Light and ensure the system is operating properly.

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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