AutoCodes – Ford – C1127 Ford

C1127 Ford Code - Deactivator Switch Circuit Failure

Quick Answer

The Powertrain Control Module (PCM) monitors the Speed Control Actuator Switch. Common causes include Faulty Speed Control Actuator Switch, Speed Control Actuator Switch harness is open or shorted, Speed Control Actuator Switch 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: C1127 Ford indicates Deactivator Switch Circuit Failure.
Common causes: Common causes include Faulty Speed Control Actuator Switch, Speed Control Actuator Switch harness is open or shorted, Speed Control Actuator Switch 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 4,249

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 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1127 Ford Description

The Powertrain Control Module (PCM) monitors the Speed Control Actuator Switch. The PCM sets the OBDII code when the Speed Control Actuator Switch is not to factory specifications.

OBDII Code C1127 Ford - Deactivator Switch Circuit Failure - AutoCodes.com — C1127 Ford Code - Deactivator Switch Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1127 Ford?

Faulty Speed Control Actuator Switch
Speed Control Actuator Switch harness is open or shorted
Speed Control Actuator Switch circuit poor electrical connection

How to Fix the DTC C1127 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 C1127 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.

Frequently Asked Questions about C1127 Ford Code

1. What are the common symptoms of OBDII code C1127 in a Ford, indicating a Deactivator Switch Circuit Failure?

- Common symptoms include illuminated warning lights on the dashboard, difficulty shifting gears, and potential loss of cruise control functionality.

2. What could cause the Deactivator Switch Circuit Failure code C1127 to trigger in a Ford vehicle?

- Possible causes include a faulty deactivator switch, damaged wiring or connectors in the circuit, or a malfunction in the brake light switch.

3. How can I diagnose the Deactivator Switch Circuit Failure in my Ford when OBDII code C1127 appears?

- Use a diagnostic scanner to read and interpret the code, inspect the deactivator switch and related wiring for damage, and test the circuit for continuity.

4. Is it safe to continue driving my Ford if the C1127 code related to Deactivator Switch Circuit Failure is present?

- It is recommended to address the issue promptly to avoid potential safety risks due to impaired brake and cruise control functions.

5. Can I reset the OBDII code C1127 related to Deactivator Switch Circuit Failure in my Ford without fixing the underlying issue?

- While clearing the code may temporarily turn off the warning light, the issue will likely persist until the root cause is identified and repaired.

6. Are there any DIY repair tips for resolving the C1127 code indicating Deactivator Switch Circuit Failure in a Ford?

- DIY repair options may include checking and replacing the deactivator switch, inspecting and repairing damaged wiring, and ensuring proper connections in the circuit.

7. How much does it typically cost to repair the Deactivator Switch Circuit Failure triggering OBDII code C1127 in a Ford?

- Repair costs can vary depending on the exact cause of the issue, but expenses may include parts replacement, labor charges, and diagnostic fees.

8. Will fixing the Deactivator Switch Circuit Failure code C1127 in my Ford require professional assistance?

- While some DIY enthusiasts may be able to address the issue, consulting a qualified mechanic or technician is recommended for accurate diagnosis and repair.

9. Can extreme weather conditions or environmental factors contribute to the appearance of OBDII code C1127 related to Deactivator Switch Circuit Failure in a Ford?

- Yes, exposure to moisture, corrosion, or extreme temperatures can potentially impact the deactivator switch circuit and lead to the triggering of the C1127 code.

10. How long does it typically take to repair the Deactivator Switch Circuit Failure issue associated with OBDII code C1127 in a Ford?

- The repair duration can vary based on the complexity of the problem, availability of parts, and the expertise of the individual performing the repair, but it may take a few hours to complete.