All codes/P0819

P0819

Up and Down Shift Switch to Transmission Range Correlation

Moderate severity

This code indicates up and down shift switch to transmission range correlation. It relates to the transmission / transfer case / hybrid-ev drive systems and may affect performance, emissions, or drivability depending on the exact failure.

Up and Down Shift Switch to Transmission Range Correlation

Common causes

  • Low or degraded transmission fluid

    Low fluid level or old fluid can cause shifting and pressure faults.

    medium

    Typical part cost: $100-400

  • Faulty sensor or solenoid

    Transmission sensors and solenoids commonly fail and set codes.

    medium

    Typical part cost: $100-400

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First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P0819 mean?

P0819 means "Up and Down Shift Switch to Transmission Range Correlation". It is a generic OBD-II code that points to a fault in the transmission / transfer case / hybrid-ev drive systems.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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