P0994

2017-10-10

Description:

  • The fault code P0994 indicates a low voltage condition in the transmission fluid pressure sensor/switch 'F' circuit. This sensor/switch is responsible for monitoring the fluid pressure within the transmission. The low circuit voltage suggests that there is an issue with the electrical signal or power supply in the circuit.

Possible Symptoms:

  • Illumination of the Malfunction Indicator Lamp (MIL) or Check Engine Light.

  • Abnormal or erratic transmission shifting behavior.

  • Delayed or harsh shifting of gears.

  • Poor acceleration or loss of power.

  • Other related fault codes may be present.

Possible Causes:

  • Faulty transmission fluid pressure sensor/switch 'F'

  • Loose or corroded electrical connections in the transmission fluid pressure sensor/switch 'F' circuit

  • Damaged or frayed wiring in the circuit

  • Short circuit or open circuit in the circuit

  • Issues with the transmission control module (TCM)

  • Low or contaminated transmission fluid

Related Parts:

  • Hydraulic Pressure Sensor: Hydraulic oil is needed for the gear lubrication system. This sensor measures oil pressure. This car's sensor has a problem which may cause difficulty in shifting gears

Possible Solutions:

  • Inspect the electrical connections in the circuit and ensure they are securely connected. Clean or repair any corroded or damaged connectors.

  • Check the wiring in the circuit for any signs of damage or fraying. Repair or replace as necessary.

  • Test and replace the faulty transmission fluid pressure sensor/switch 'F', if necessary.

  • Check for any short circuits or open circuits in the circuit and repair as needed.

  • Verify the functionality of the transmission control module (TCM) and perform any required repairs or updates.

  • Check the transmission fluid level and quality. Drain and replace if low or contaminated.

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