WOMS
P code powertrain Medium severity

P1910 VFS A Pressure Output Failed Low

The OBD2 code P1910 VFS A Pressure Output Failed Low indicates that the Vehicle Fluid System (VFS) A pressure sensor is reporting a low output signal, suggesting a potential malfunction or failure in the sensor or its...

Definition

The OBD2 code P1910 VFS A Pressure Output Failed Low indicates that the Vehicle Fluid System (VFS) A pressure sensor is reporting a low output signal, suggesting a potential malfunction or failure in the sensor or its circuit

Common causes

  • Faulty VFS (Variable Force Solenoid) A
  • Wiring issues (shorts, opens, or corrosion)
  • Poor electrical connections
  • Failed transmission control module (TCM)
  • Low transmission fluid level
  • Contaminated or degraded transmission fluid
  • Internal transmission issues (e.g., valve body problems)
  • Faulty pressure sensor or switch

Common misdiagnoses

  • Faulty transmission control module (TCM)
  • Defective transmission fluid temperature sensor
  • Malfunctioning valve body
  • Low transmission fluid level
  • Clogged transmission filter
  • Wiring or connector issues
  • Faulty pressure sensor or switch
  • Incorrectly diagnosed transmission issues

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are multiple issues

  2. 2. Inspect Wiring and Connectors

    Visually inspect the wiring and connectors related to the VFS A. Look for signs of damage, corrosion, or loose connections. Repair or replace any damaged components

  3. 3. Test the VFS A

    Use a multimeter to test the resistance and voltage of the Variable Force Solenoid. Compare the readings to the manufacturer's specifications. If the solenoid is out of spec, it may need to be replaced

  4. 4. Check Transmission Fluid

    Ensure that the transmission fluid is at the correct level and in good condition. Low or contaminated fluid can affect solenoid operation. If necessary, change the fluid and filter

  5. 5. Inspect the Transmission Control Module (TCM)

    Check for any issues with the TCM, as it controls the operation of the solenoids. Ensure that the TCM is functioning properly and that there are no software issues

  6. 6. Perform a Pressure Test

    If applicable, perform a pressure test on the transmission to ensure that it is operating within the specified pressure range. Low pressure can indicate internal transmission issues

  7. 7. Check for Mechanical Issues

    Inspect the transmission for any mechanical problems, such as sticking valves or worn components, that could affect solenoid operation

  8. 8. Clear Codes and Test Drive

    After performing repairs or adjustments, clear the trouble codes and take the vehicle for a test drive to see if the code returns

  9. 9. Seek Professional Help

    If the issue persists after performing the above steps, consider seeking help from a qualified mechanic or transmission specialist who can perform more advanced diagnostics. By following these steps, you can systematically identify and address the cause of the P1910 code