Engine-CodesDodge – P0878 Dodge

P0878 Dodge Code - Transmission Fluid Pressure Sensor/Switch 'D' Circuit High

Quick Answer

The P0878 diagnostic trouble code for Dodge vehicles indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'D' Circuit being too high. Common causes include Faulty transmission fluid pressure sensor/switch, Clogged transmission fluid filter, Low transmission fluid levels. 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
P0878 Dodge indicates Transmission Fluid Pressure Sensor/Switch 'D' Circuit High.
Common causes
Common causes include Faulty transmission fluid pressure sensor/switch, Clogged transmission fluid filter, Low transmission fluid levels.
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 11, 2024
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Code P0878 Dodge Description

The P0878 diagnostic trouble code for Dodge vehicles indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'D' Circuit being too high. The transmission fluid pressure sensor/switch is responsible for monitoring the hydraulic pressure within the transmission system. When the sensor detects that the pressure is too high, it triggers this code to alert the vehicle's onboard computer system of the issue.

OBDII Code P0878 Dodge - Transmission Fluid Pressure Sensor/Switch 'D' Circuit High
P0878 Dodge Code - Transmission Fluid Pressure Sensor/Switch 'D' Circuit High

Common Causes of P0878 Dodge

  1. Faulty transmission fluid pressure sensor/switch
  2. Clogged transmission fluid filter
  3. Low transmission fluid levels
  4. Malfunctioning transmission control module
  5. Electrical issues in the transmission system

Symptoms of P0878 Dodge

  1. Harsh or delayed shifting
  2. Transmission slipping
  3. Decreased fuel efficiency
  4. Illumination of the Check Engine Light
  5. Transmission overheating

How to Fix P0878 Dodge

  1. Begin by connecting a diagnostic scanner to the vehicle's onboard computer to retrieve the specific error codes and confirm P0878.
  2. Inspect the transmission fluid pressure sensor/switch for any signs of damage or corrosion and replace if necessary.
  3. Check the transmission fluid level and quality, topping up or replacing as needed.
  4. Inspect the transmission fluid filter for any clogs or debris and replace if necessary.
  5. Clear the error codes from the system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0878 Dodge

The typical repair costs for addressing a P0878 code in a Dodge vehicle can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

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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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