AutoCodes – Ford – P1780 2008 Ford Fusion

P1780 2008 Ford Fusion Code - Transmission Control Switch Circuit is Out of Self-Test Range

Quick Answer

The Transmission Control Switch (TCS) is a momentary contact switch that is located on the end of the transmission control selector lever. Common causes include Transmission Control Switch (TCS) not cycled during the self-test, Faulty Transmission Control Switch, Transmission Control Switch 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: P1780 2008 Ford Fusion indicates Transmission Control Switch Circuit is Out of Self-Test Range.
Common causes: Common causes include Transmission Control Switch (TCS) not cycled during the self-test, Faulty Transmission Control Switch, Transmission Control Switch 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 2,829

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 Aug 01, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code P1780 2008 Ford Fusion Description

The Transmission Control Switch (TCS) is a momentary contact switch that is located on the end of the transmission control selector lever. Pushing the TCS will either disengage or engage the overdrive function of the transmission. During Key ON Engine Running (KOER) self-test the TCS must be cycled, the Diagnostic Trouble Code (DTC) will set anytime Powertrain Control Module (PCM) detects a TCS out of self-test range.

OBDII Code P1780 2008 Ford Fusion - Transmission Control Switch Circuit is Out of Self-Test Range - AutoCodes.com — P1780 2008 Ford Fusion Code - Transmission Control Switch Circuit is Out of Self-Test Range

What does this mean?

What are the Possible Causes of the DTC P1780 2008 Ford Fusion?

Transmission Control Switch (TCS) not cycled during the self-test
Faulty Transmission Control Switch
Transmission Control Switch harness is open or shorted
Transmission Control Switch circuit poor electrical connection

How to Fix the DTC P1780 2008 Ford Fusion?

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 P1780 2008 Ford Fusion 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.

Frequently Asked Questions about P1780 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P1780 on a 2008 Ford Fusion?

- Common symptoms include the Check Engine Light illuminating, harsh shifting, transmission slippage, and the transmission going into limp mode.

2. What does the OBDII code P1780 indicate for a 2008 Ford Fusion?

- The code P1780 indicates that the Transmission Control Switch Circuit is Out of Self-Test Range.

3. What are the possible causes of OBDII code P1780 on a 2008 Ford Fusion?

- Possible causes include a faulty transmission range sensor, damaged wiring or connectors in the transmission control circuit, or a malfunctioning transmission control module.

4. How can I diagnose the OBDII code P1780 on my 2008 Ford Fusion?

- Diagnosis typically involves using a scan tool to retrieve the trouble codes, checking the transmission range sensor for proper operation, and inspecting the wiring and connectors for any damage.

5. Can I continue to drive my 2008 Ford Fusion with OBDII code P1780?

- It is not recommended to continue driving with this code present, as it can lead to further transmission issues and potential safety hazards.

6. How can I repair OBDII code P1780 on a 2008 Ford Fusion?

- Repair options may include replacing the transmission range sensor, repairing any damaged wiring or connectors, or reprogramming the transmission control module.

7. Is it possible to reset the OBDII code P1780 on a 2008 Ford Fusion without fixing the underlying issue?

- While you can clear the code using a scan tool, it will likely return if the root cause of the problem is not addressed.

8. How much does it typically cost to repair OBDII code P1780 on a 2008 Ford Fusion?

- The cost of repairs can vary depending on the specific issue and the labor rates in your area. It's best to consult with a professional mechanic for an accurate estimate.

9. Are there any recalls or technical service bulletins related to OBDII code P1780 on a 2008 Ford Fusion?

- It's recommended to check with Ford or a local dealership to see if there are any relevant recalls or technical service bulletins for this specific issue.

10. How can I prevent OBDII code P1780 from appearing on my 2008 Ford Fusion in the future?

- To prevent the recurrence of this code, it's essential to address any underlying issues promptly, perform regular maintenance on your vehicle, and avoid harsh driving habits that can strain the transmission system.