AutoCodes – Ford – P1589 Ford

P1589 Ford Code - Throttle Control Unit Unable To Control Desired Throttle Angle

Quick Answer

The Powertrain Control Module (PCM) tests the electronic throttle for the ability of the throttle plate to return to the default (limp home) position from both the open and closed positions. Common causes include Faulty Throttle Control Unit, Throttle Control Unit harness is open or shorted, Throttle Control Unit 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: P1589 Ford indicates Throttle Control Unit Unable To Control Desired Throttle Angle.
Common causes: Common causes include Faulty Throttle Control Unit, Throttle Control Unit harness is open or shorted, Throttle Control Unit 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 5,677

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 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1589 Ford Description

The Powertrain Control Module (PCM) tests the electronic throttle for the ability of the throttle plate to return to the default (limp home) position from both the open and closed positions.

OBDII Code P1589 Ford - Throttle Control Unit Unable To Control Desired Throttle Angle - AutoCodes.com — P1589 Ford Code - Throttle Control Unit Unable To Control Desired Throttle Angle

What does this mean?

What are the Possible Causes of the DTC P1589 Ford?

Faulty Throttle Control Unit
Throttle Control Unit harness is open or shorted
Throttle Control Unit circuit poor electrical connection

How to Fix the DTC P1589 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 P1589 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.