P0814 Fault Code

Transmission Range Display Circuit

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0814 fault code indicates an issue with the Transmission Range Display Circuit. This circuit is responsible for providing information about the position of the gear selector to the engine control module (ECM). Proper functioning of this circuit is crucial for the performance and safety of the vehicle's transmission system.

• Ensures correct positioning of the gear selector.
• Facilitates smooth shifting of gears.
• Plays a role in the overall functionality of transmission systems.

What are the symptoms of the P0814 code?

When the P0814 code is present, you may experience:

• Incorrect gear display on the dashboard.
• Transmission slipping or failing to engage.
• Delayed or harsh shifting between gears.
• Check Engine Light (CEL) illuminated.
• Difficulty in accurately determining the gear position.

What causes the P0814 code?

Several factors can trigger the P0814 code, including:

• Faulty transmission range sensor.
• Shorted or open circuits in the wiring.
• Corroded or poor electrical connections.
• Issues with the transmission control module (TCM).
• Software glitches in the vehicle's control system.

How to fix P0814?

To resolve the P0814 fault code, it is important to:

• Inspect the transmission range sensor and its wiring for damage or corrosion.
• Test the electrical connections for continuity and proper function.
• Replace any faulty components identified during inspection.
• Reprogram or update the TCM if necessary.
• Clear any codes and perform a test drive to ensure proper function.