AutoCodes – Jeep – C120D Jeep

C120D Jeep Code - Rear Traction Control Prime Valve Control Circuit Low

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Rear Traction Control Prime Valve. Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) Module 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
C120D Jeep indicates Rear Traction Control Prime Valve Control Circuit Low.
Common causes
Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 947
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 22, 2020
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Code C120D Jeep Description

The Anti-Lock Brake System (ABS) Module monitors the Rear Traction Control Prime Valve. The ABS Module sets the OBDII code when the Rear Traction Control Prime Valve is not to factory specifications.
OBDII Code C120D Jeep - Rear Traction Control Prime Valve Control Circuit Low - AutoCodes.com
C120D Jeep Code - Rear Traction Control Prime Valve Control Circuit Low

What are the Possible Causes of the DTC C120D Jeep?

  • Faulty Anti-Lock Brake System (ABS) Module
  • Anti-Lock Brake System (ABS) Module harness is open or shorted
  • Anti-Lock Brake System (ABS) Module circuit poor electrical connection

How to Fix the DTC C120D Jeep?

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 C120D Jeep 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 C120D Jeep Code

1. What are the common symptoms of OBDII code C120D in a Jeep related to the Rear Traction Control Prime Valve Control Circuit Low?

- Common symptoms may include the traction control light illuminating on the dashboard, reduced traction control functionality, and potential difficulty in maintaining stability while driving.

2. What can cause the OBDII code C120D in a Jeep indicating an issue with the Rear Traction Control Prime Valve Control Circuit Low?

- Possible causes may include a malfunctioning traction control prime valve, damaged wiring or connectors in the circuit, a faulty traction control module, or a powertrain control module (PCM) issue.

3. How can I diagnose the OBDII code C120D in my Jeep related to the Rear Traction Control Prime Valve Control Circuit Low?

- Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the traction control system components for any visible damage, and conducting electrical tests on the prime valve, wiring, and connectors.

4. What are the repair options for addressing the OBDII code C120D in a Jeep with a Rear Traction Control Prime Valve Control Circuit Low fault?

- Repair options may include replacing the traction control prime valve, repairing or replacing damaged wiring or connectors, resetting the trouble code with a scan tool after repairs, and retesting the system for proper functionality.

5. Can I drive my Jeep safely with the OBDII code C120D indicating a problem with the Rear Traction Control Prime Valve Control Circuit Low?

- It is recommended to address the issue promptly to ensure safe driving conditions, as the traction control system may not function as intended, potentially affecting vehicle stability and traction in certain driving conditions.

6. Are there any DIY tips for troubleshooting the OBDII code C120D in a Jeep related to the Rear Traction Control Prime Valve Control Circuit Low?

- DIY tips may include visually inspecting the traction control components for any obvious damage, checking the wiring harness for loose connections or breaks, and ensuring all electrical connections are secure.

7. How much does it typically cost to repair the OBDII code C120D in a Jeep with a Rear Traction Control Prime Valve Control Circuit Low issue?

- Repair costs can vary depending on the specific cause of the fault, but it may involve parts and labor expenses ranging from $100 to $500 or more, depending on the extent of the repairs needed.

8. Can extreme weather conditions or off-road driving contribute to triggering the OBDII code C120D in a Jeep related to the Rear Traction Control Prime Valve Control Circuit Low?

- Extreme weather conditions or rough off-road driving can potentially expose the traction control system to increased wear and damage, which may contribute to triggering the fault code over time.

9. Is it necessary to visit a dealership or an authorized service center to address the OBDII code C120D in a Jeep indicating a problem with the Rear Traction Control Prime Valve Control Circuit Low?

- While visiting a dealership or authorized service center is recommended for complex repairs, basic troubleshooting and repairs for the traction control system can often be performed by independent mechanics or experienced DIY enthusiasts.

10. How can I prevent the OBDII code C120D related to the Rear Traction Control Prime Valve Control Circuit Low from recurring in my Jeep?

- Regular maintenance checks, avoiding harsh driving conditions, and promptly addressing any traction control system issues can help prevent the recurrence of the fault code in the future.

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