AutoCodes – Ford – C1206 Ford

C1206 Ford Code - ABS Rear Isolation Valve Circuit Failure

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the ABS Rear Isolation Valve. Common causes include Faulty ABS Rear Isolation Valve, ABS Rear Isolation Valve harness is open or shorted, ABS Rear Isolation Valve 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: C1206 Ford indicates ABS Rear Isolation Valve Circuit Failure.
Common causes: Common causes include Faulty ABS Rear Isolation Valve, ABS Rear Isolation Valve harness is open or shorted, ABS Rear Isolation Valve 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 9,218

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 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1206 Ford Description

The Anti-Lock Brake System (ABS) Module monitors the ABS Rear Isolation Valve. The ABS Module sets the OBDII code when the ABS Rear Isolation Valve is not to factory specifications.

OBDII Code C1206 Ford - ABS Rear Isolation Valve Circuit Failure - AutoCodes.com — C1206 Ford Code - ABS Rear Isolation Valve Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1206 Ford?

Faulty ABS Rear Isolation Valve
ABS Rear Isolation Valve harness is open or shorted
ABS Rear Isolation Valve circuit poor electrical connection

How to Fix the DTC C1206 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 C1206 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.

Need more information about the C1206 Ford code?

Need more information on how to fix the C1206 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1206 Ford code diagnosed by a professional: Find a repair shop in your area

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 C1206 Ford Code

1. What does the OBDII code C1206 mean on a Ford vehicle?

C1206 indicates a problem with the ABS Rear Isolation Valve Circuit, which is part of the anti-lock braking system responsible for controlling rear brake pressure.

2. What are the common symptoms of code C1206 on a Ford?

Symptoms may include the ABS warning light being illuminated, reduced braking performance, or the ABS system not engaging properly during hard braking.

3. What causes the C1206 ABS Rear Isolation Valve Circuit Failure?

Common causes include a faulty ABS isolation valve, damaged wiring or connectors in the circuit, or a malfunctioning ABS control module.

4. Can I drive my Ford with the C1206 code?

While the vehicle may still be drivable, it is not recommended as the ABS system may not function properly, increasing the risk of losing control during sudden braking.

5. How do I diagnose the C1206 code on my Ford?

Start by checking the ABS fuse, inspecting the wiring and connectors for damage, and testing the rear isolation valve for functionality using a multimeter.

6. How is the C1206 code fixed?

Repairs may involve replacing the faulty ABS rear isolation valve, repairing or replacing damaged wiring, or reprogramming or replacing the ABS control module.

7. How much does it cost to repair the C1206 code?

Depending on the cause, repairs can range from $100 for wiring repairs to $500 or more for ABS module or valve replacement.

8. Can a dead battery cause the C1206 code?

A low or dead battery is unlikely to directly cause C1206, but it can lead to voltage irregularities that may affect the ABS system.

9. Will clearing the code fix the issue?

Clearing the code without addressing the underlying problem will not fix the issue, and the code is likely to return.

10. Do I need a mechanic to fix the C1206 code?

If you are comfortable with electrical diagnostics and have the necessary tools, you can attempt repairs yourself. Otherwise, itâ€™s best to consult a qualified mechanic.