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P0994 – BMW DTC

BMW DTC P0994 – Transmission Fluid Pressure Sensor/Switch ‘F’ Circuit Low

DTC P0994 meaning on BMW

The Diagnostic Trouble Code (DTC) P0994 for BMW refers to an issue with the Transmission Fluid Pressure Sensor/Switch ‘F’ Circuit registering a low voltage signal. This code is specific to the transmission system and indicates a problem with the pressure sensor or switch in the transmission fluid circuit.

BMW DTC P0994 symptoms

Symptoms of DTC P0994 on a BMW may include:

  • Transmission slipping or erratic shifting
  • Transmission overheating
  • Transmission warning light illuminated on the dashboard
  • Reduced fuel efficiency

BMW DTC P0994 causes

Common causes of DTC P0994 on a BMW include:

  • Malfunctioning transmission fluid pressure sensor/switch
  • Wiring or connector issues in the transmission fluid pressure circuit
  • Low transmission fluid level or dirty fluid
  • Internal transmission problems

BMW DTC P0994 seriousness

Ignoring DTC P0994 on a BMW can lead to serious transmission issues, potentially causing further damage to the transmission system. It is important to address this code promptly to prevent more extensive and costly repairs in the future.

How to diagnose DTC P0994 on BMW

To diagnose DTC P0994 on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes from the transmission control module.
  2. Inspect the transmission fluid level and condition.
  3. Check the wiring and connectors in the transmission fluid pressure sensor/switch circuit for any damage or corrosion.
  4. Test the transmission fluid pressure sensor/switch for proper operation.

How to fix DTC P0994 on BMW

To fix DTC P0994 on a BMW, you may need to:

  1. Replace the transmission fluid pressure sensor/switch if it is faulty.
  2. Repair or replace any damaged wiring or connectors in the circuit.
  3. Ensure the transmission fluid level is correct and the fluid is clean.
  4. Address any internal transmission issues if necessary.

How to erase DTC P0994 on BMW

To erase DTC P0994 on a BMW, you can:

  1. Use a diagnostic scanner to clear the fault codes from the transmission control module.
  2. After fixing the underlying issue, drive the vehicle to allow the system to recheck and confirm the repair.
  3. If the fault does not reoccur, the DTC P0994 should be successfully erased.

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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