AutoCodes – Generic – C1205

C1205 Code - ABS Rear Dump Valve Circuit Short To Ground

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the ABS Rear Dump Valve. Common causes include Faulty ABS Rear Dump Valve, ABS Rear Dump Valve harness is open or shorted, ABS Rear Dump 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
C1205 indicates ABS Rear Dump Valve Circuit Short To Ground.
Common causes
Common causes include Faulty ABS Rear Dump Valve, ABS Rear Dump Valve harness is open or shorted, ABS Rear Dump 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 26,309
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 21, 2020
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Code C1205 Description

The Anti-Lock Brake System (ABS) Module monitors the ABS Rear Dump Valve. The ABS Module sets the OBDII code when the ABS Rear Dump Valve is not to factory specifications.
OBDII Code C1205 - ABS Rear Dump Valve Circuit Short To Ground - AutoCodes.com
C1205 Code - ABS Rear Dump Valve Circuit Short To Ground

What are the Possible Causes of the DTC C1205?

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

How to Fix the DTC C1205?

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 C1205 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 C1205 code?

Need more information on how to fix the C1205 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1205 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • C1205 Buick β€” Right Front Wheel Speed Sensor Input Signal Equals Zero
  • C1205 Cadillac β€” Right Front Wheel Speed Sensor Input Signal Equals Zero
  • C1205 Chevrolet β€” Right Front Wheel Speed Sensor Input Signal Equals Zero
  • C1205 Chrysler β€” Rear Traction Control Inlet Valve Control Circuit Low
  • C1205 Dodge β€” Rear Traction Control Inlet Valve Control Circuit Low
  • C1205 Ford β€” ABS Rear Dump Valve Circuit Short To Ground
  • C1205 GMC β€” Right Front Wheel Speed Sensor Input Signal Equals Zero
  • C1205 Hyundai β€” Front Right Wheel Speed Sensor Invalid Or No Signal
  • C1205 Jeep β€” Rear Traction Control Inlet Valve Control Circuit Low
  • C1205 KIA β€” Front Right Wheel Speed Sensor Invalid Or No Signal
  • C1205 Lincoln β€” ABS Rear Dump Valve Circuit Short To Ground
  • C1205 Mercury β€” ABS Rear Dump Valve Circuit Short To Ground
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 C1205 Code

1. What are common symptoms of OBDII code C1205 (ABS Rear Dump Valve Circuit Short To Ground)?

The common symptoms of this code include the ABS warning light illuminating on the dashboard, potential loss of ABS functionality, and possible issues with braking performance.

2. What can cause OBDII code C1205 to trigger?

The code C1205 typically triggers due to a short to ground in the ABS rear dump valve circuit. This can be caused by damaged wiring, a faulty ABS module, or a problem with the dump valve itself.

3. How serious is OBDII code C1205?

While the severity can vary based on driving conditions and individual circumstances, it is generally recommended to address ABS-related codes promptly to ensure the safety and proper functioning of the braking system.

4. Can I continue driving with OBDII code C1205 present?

It is not advisable to continue driving with this code present, as it may lead to potential issues with the ABS system, affecting the vehicle's braking performance and overall safety.

5. How do I diagnose OBDII code C1205?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault code, followed by inspecting the ABS rear dump valve circuit for any signs of damage or shorts.

6. What are some repair tips for OBDII code C1205?

Repairing this code may involve repairing or replacing damaged wiring, addressing any issues with the ABS module, or replacing the faulty dump valve. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.

7. Can OBDII code C1205 be intermittent?

Yes, this code can sometimes be intermittent, depending on the root cause of the short to ground in the ABS rear dump valve circuit. It is important to address intermittent issues promptly to prevent potential safety risks.

8. How much does it cost to repair OBDII code C1205?

The cost of repairing this code can vary depending on the extent of the damage, the parts needed for replacement, and the labor costs charged by the repair shop. It is advisable to obtain quotes from multiple mechanics for an accurate estimation.

9. Is it possible to reset OBDII code C1205 without repairs?

While clearing the fault code may temporarily remove the warning light, it will not address the underlying issue causing the code. It is recommended to diagnose and repair the root cause to prevent further complications.

10. Can I prevent OBDII code C1205 from occurring again?

Regular maintenance, inspections, and addressing any signs of wiring damage can help prevent the recurrence of OBDII code C1205. Following manufacturer recommendations and promptly addressing ABS-related issues can also help maintain the system's functionality.

Discuss the causes and fixes for C1205 OBDII Code

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