AutoCodes – Ford – P1788 Ford

P1788 Ford Code - 3-2 Timing/Coast Clutch Solenoid Circuit Open 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 an open circuit condition. 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: P1788 Ford indicates 3-2 Timing/Coast Clutch Solenoid Circuit Open 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 10,565

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 P1788 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 an open circuit condition.

OBDII Code P1788 Ford - 3-2 Timing/Coast Clutch Solenoid Circuit Open Conditions - AutoCodes.com — P1788 Ford Code - 3-2 Timing/Coast Clutch Solenoid Circuit Open Conditions

What does this mean?

What are the Possible Causes of the DTC P1788 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 P1788 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 P1788 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.