AutoCodes – Generic – P0819

P0819 Code - Up And Down Shift Switch To Transmission Range Correlation

Quick Answer

The Transmission Control Module (TCM) monitors the Up And Down Shift Switch signal. Common causes include Faulty Up And Down Shift Switch, Up And Down Shift Switch harness is open or shorted, Up And Down Shift Switch circuit poor electrical connection. 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: P0819 indicates Up And Down Shift Switch To Transmission Range Correlation.
Common causes: Common causes include Faulty Up And Down Shift Switch, Up And Down Shift Switch harness is open or shorted, Up And Down Shift Switch circuit poor electrical connection.
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.

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Code Popularity 10,322

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0819 Description

The Transmission Control Module (TCM) monitors the Up And Down Shift Switch signal. The TCM sets the OBDII code when the Up And Down Shift Switch signal is not to factory specifications.

OBDII Code P0819 - Up And Down Shift Switch To Transmission Range Correlation - AutoCodes.com — P0819 Code - Up And Down Shift Switch To Transmission Range Correlation

What does this mean?

What are the Possible Causes of the DTC P0819?

Faulty Up And Down Shift Switch
Up And Down Shift Switch harness is open or shorted
Up And Down Shift Switch circuit poor electrical connection

How to Fix the DTC P0819?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0819 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0819 code?

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Information for Specific Makes

P0819 Dodge — Up And Down Shift Switch To Transmission Range Correlation
P0819 KIA — Up And Down Shift Switch To Transmission Range Correlation
P0819 Mazda — Manual Up/Down Switch Circuit Malfunction

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.