AutoCodes – Ford – P1904 Ford

P1904 Ford Code - Kickdown Solenoid Circuit High Voltage

Quick Answer

P1904 Ford indicates Kickdown Solenoid Circuit High Voltage. Common causes include Faulty Kickdown Solenoid, Kickdown Solenoid harness is open or shorted, Kickdown Solenoid 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: P1904 Ford indicates Kickdown Solenoid Circuit High Voltage.
Common causes: Common causes include Faulty Kickdown Solenoid, Kickdown Solenoid harness is open or shorted, Kickdown Solenoid 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 4,076

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 Sep 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1904 Ford Description

OBDII Code P1904 Ford - Kickdown Solenoid Circuit High Voltage - AutoCodes.com — P1904 Ford Code - Kickdown Solenoid Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1904 Ford?

Faulty Kickdown Solenoid
Kickdown Solenoid harness is open or shorted
Kickdown Solenoid circuit poor electrical connection

How to Fix the DTC P1904 Ford?

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 P1904 Ford 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.