Engine-CodesChrysler – P0994 Chrysler

P0994 Chrysler Code - LR Pressure Switch Sense Circuit

Quick Answer

The P0994 code in a Chrysler vehicle specifically relates to the LR (left rear) pressure switch sense circuit. Common causes include Faulty LR pressure switch, Damaged wiring or connectors in the circuit, Malfunctioning transmission control module (TCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0994 Chrysler indicates LR Pressure Switch Sense Circuit.
Common causes
Common causes include Faulty LR pressure switch, Damaged wiring or connectors in the circuit, Malfunctioning transmission control module (TCM).
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0994 Chrysler Description

The P0994 code in a Chrysler vehicle specifically relates to the LR (left rear) pressure switch sense circuit. This code indicates that there is a malfunction in the circuit responsible for sensing pressure in the left rear portion of the transmission. The pressure switch is a crucial component in the transmission system, as it helps to regulate the transmission fluid pressure, which is essential for smooth gear shifting and overall transmission performance.

OBDII Code P0994 Chrysler - LR Pressure Switch Sense Circuit
P0994 Chrysler Code - LR Pressure Switch Sense Circuit

Common Causes of P0994 Chrysler

  1. Faulty LR pressure switch
  2. Damaged wiring or connectors in the circuit
  3. Malfunctioning transmission control module (TCM)
  4. Low transmission fluid levels
  5. Contaminated or degraded transmission fluid

Symptoms of P0994 Chrysler

  1. Harsh or delayed shifting
  2. Erratic transmission behavior
  3. Transmission slippage
  4. Illuminated Check Engine Light
  5. Transmission overheating

How to Fix P0994 Chrysler

  1. Begin by connecting a diagnostic scanner to the vehicle's OBD-II port to retrieve the specific fault codes, including the P0994 code.
  2. Inspect the LR pressure switch, wiring harnesses, and connectors for any visible damage or wear. Replace any components that are faulty or damaged.
  3. Check the transmission fluid levels and condition. Top off or replace the fluid as needed.
  4. Test the LR pressure switch and the circuit to ensure proper functionality. Repair or replace any components that are not functioning correctly.
  5. Clear the fault codes using the diagnostic scanner and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0994 Chrysler

The typical repair costs for addressing the P0994 code in a Chrysler vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a faulty LR pressure switch, repairing wiring harnesses or connectors, and performing a transmission fluid flush can range from $200 to $600. Additional costs for diagnostic time and labor rates at auto repair shops should also be considered. It is recommended to consult with a trusted mechanic or dealership for a more accurate estimate based on the individual circumstances of the vehicle.

When is the Code Detected?

This code is set if the LR pressure switch is either open or closed at the wrong time in a given gear.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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