Engine-CodesGeneric – P0819

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

Quick Answer

The OBD-II trouble code P0819 refers to the Up and Down Shift Switch to Transmission Range Correlation. Common causes include Faulty upshift or downshift switch, Faulty transmission range sensor, Wiring or connector issues between the switches and the 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
P0819 indicates Up And Down Shift Switch To Transmission Range Correlation.
Common causes
Common causes include Faulty upshift or downshift switch, Faulty transmission range sensor, Wiring or connector issues between the switches and the 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 07, 2024
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Code P0819 Description

The OBD-II trouble code P0819 refers to the Up and Down Shift Switch to Transmission Range Correlation. This code indicates that there is a correlation problem between the upshift and downshift switch signals and the transmission range sensor. In simpler terms, it means that the signals from the shift switches are not matching the gear the transmission is actually in. This can lead to issues with the transmission shifting properly, potentially causing erratic shifting, harsh shifting, or even the transmission getting stuck in a certain gear.

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

Common Causes of P0819

  1. Faulty upshift or downshift switch
  2. Faulty transmission range sensor
  3. Wiring or connector issues between the switches and the TCM
  4. TCM software or programming issues
  5. Low transmission fluid levels

Symptoms of P0819

  1. Erratic shifting
  2. Harsh shifting
  3. Transmission slipping
  4. Transmission getting stuck in a gear
  5. Check Engine Light illuminated

How to Fix P0819

  1. Perform a thorough diagnostic scan to confirm the P0819 code and pinpoint the exact source of the issue.
  2. Inspect the upshift and downshift switches to ensure they are functioning correctly. Replace any faulty switches.
  3. Check the transmission range sensor for proper operation. Replace if necessary.
  4. Inspect the wiring and connectors between the switches, sensor, and TCM for any damage or corrosion. Repair or replace as needed.
  5. Clear the trouble code from the system and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0819

The typical repair costs for addressing the P0819 code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, you can expect to pay anywhere from $150 to $500 for this repair. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to check with local shops for more accurate pricing.

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Code P0819 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.

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