AutoCodes – Ford – P1789 Ford

P1789 Ford Code - 3-2 Timing/Coast Clutch Solenoid Circuit Shorted Conditions

Quick Answer

With the engine running in gear at cruise speed, the Powertrain Control Module (PCM) receives a signal that the 3-2 Timing or coast clutch solenoid circuit had a shorted circuit. Common causes include Faulty Coast Clutch Solenoid, Coast Clutch Solenoid harness is open or shorted, Coast Clutch 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: P1789 Ford indicates 3-2 Timing/Coast Clutch Solenoid Circuit Shorted Conditions.
Common causes: Common causes include Faulty Coast Clutch Solenoid, Coast Clutch Solenoid harness is open or shorted, Coast Clutch 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 7,859

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1789 Ford Description

With the engine running in gear at cruise speed, the Powertrain Control Module (PCM) receives a signal that the 3-2 Timing or coast clutch solenoid circuit had a shorted circuit.

OBDII Code P1789 Ford - 3-2 Timing/Coast Clutch Solenoid Circuit Shorted Conditions - AutoCodes.com — P1789 Ford Code - 3-2 Timing/Coast Clutch Solenoid Circuit Shorted Conditions

What does this mean?

What are the Possible Causes of the DTC P1789 Ford?

Faulty Coast Clutch Solenoid
Coast Clutch Solenoid harness is open or shorted
Coast Clutch Solenoid circuit poor electrical connection

How to Fix the DTC P1789 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 P1789 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.