What are the common causes of P0814?

An open or short in the transmission range display circuit. A faulty transmission range sensor. Corrosion at the range display connector. A faulty range display module. A PCM or TCM fault on the display circuit.

Read the transmission range display state on a scan tool. Test the range display circuit for an open or short. Check the range sensor and connector. Check the display module installation. Replace the range sensor if the circuit tests good. Clear the code and retest.

P0814

Transmission Range Display Circuit

System: Transmission (P code)
Lamp: Check Engine Light
Category: Powertrain - Transmission

What it means

P0814 means Transmission Range Display Circuit.

Check these first

An open or short in the transmission range display circuit
A faulty transmission range sensor
Corrosion at the range display connector
A faulty range display module
A PCM or TCM fault on the display circuit

What to do next

Read the transmission range display state on a scan tool
Test the range display circuit for an open or short
Check the range sensor and connector
Check the display module installation
Replace the range sensor if the circuit tests good
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.