AutoCodes – Dodge – P0987 Dodge

P0987 Dodge Code - 4C Hydraulic Pressure Test

Quick Answer

The Transmission Control Module (TCM) monitors the Transmission Fluid Pressure Sensor/Switch signal. Common causes include Low or dirty fluid, Faulty Line Pressure Sensor, Line 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: P0987 Dodge indicates 4C Hydraulic Pressure Test.
Common causes: Common causes include Low or dirty fluid, Faulty Line Pressure Sensor, Line 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 8,383

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 P0987 Dodge Description

The Transmission Control Module (TCM) monitors the Transmission Fluid Pressure Sensor/Switch signal. The TCM sets the OBDII code when the Transmission Fluid Pressure Sensor/Switch is not to factory specifications.

OBDII Code P0987 Dodge - 4C Hydraulic Pressure Test - AutoCodes.com — P0987 Dodge Code - 4C Hydraulic Pressure Test

What does this mean?

What are the Possible Causes of the DTC P0987 Dodge?

Low or dirty fluid
Faulty Line Pressure Sensor
Line Pressure Sensor harness is open or shorted
Line Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0987 Dodge?

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 P0987 Dodge 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.

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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.