AutoCodes – Generic – P0869

P0869 Code - Transmission Fluid Pressure High

Quick Answer

The Transmission Control Module (TCM) continuously monitors actual line pressure and compares it to the desired line pressure. Common causes include Low / Dirty Transmission Fluid, Faulty Transmission Fluid Pressure Sensor, Transmission Fluid Pressure Sensor harness is open or shorted. 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: P0869 indicates Transmission Fluid Pressure High.
Common causes: Common causes include Low / Dirty Transmission Fluid, Faulty Transmission Fluid Pressure Sensor, Transmission Fluid Pressure Sensor harness is open or shorted.
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 21,829

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 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0869 Description

The Transmission Control Module (TCM) continuously monitors actual line pressure and compares it to the desired line pressure. If the difference between actual line pressure and desired line pressure is 10 psi (.7 kg/cm2 ) or greater, DTC P0867 will set. Transmission system will default to open loop line pressure control resulting in a fixed solenoid duty cycle. This duty cycle will change slightly depending on temperature and current gear.

OBDII Code P0869 - Transmission Fluid Pressure High - AutoCodes.com — P0869 Code - Transmission Fluid Pressure High

What does this mean?

What are the Possible Causes of the DTC P0869?

Low / Dirty Transmission Fluid
Faulty Transmission Fluid Pressure Sensor
Transmission Fluid Pressure Sensor harness is open or shorted
Transmission Fluid Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0869?

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 P0869 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 P0869 code?

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Need Help with the Code?

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Information for Specific Makes

P0869 Chrysler — Transmission Fluid Pressure High
P0869 Dodge — Transmission Fluid Pressure High
P0869 Jeep — Transmission Fluid Pressure High

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.