AutoCodes – Generic – C123C

C123C Code - Sensor Cluster Mounting/Installation Performance

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Sensor Cluster. Common causes include Faulty Sensor Cluster, Sensor Cluster harness is open or shorted, Sensor Cluster 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: C123C indicates Sensor Cluster Mounting/Installation Performance.
Common causes: Common causes include Faulty Sensor Cluster, Sensor Cluster harness is open or shorted, Sensor Cluster 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 7,362

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 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C123C Description

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

OBDII Code C123C - Sensor Cluster Mounting/Installation Performance - AutoCodes.com — C123C Code - Sensor Cluster Mounting/Installation Performance

What does this mean?

What are the Possible Causes of the DTC C123C?

Faulty Sensor Cluster
Sensor Cluster harness is open or shorted
Sensor Cluster circuit poor electrical connection

How to Fix the DTC C123C?

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 C123C 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 C123C code?

Need more information on how to fix the C123C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C123C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C123C Chrysler — Sensor Cluster Mounting/Installation Performance
C123C Dodge — Sensor Cluster Mounting/Installation Performance
C123C Jeep — Sensor Cluster Mounting/Installation Performance

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 C123C Code

1. What are the common symptoms of OBDII code C123C (Sensor Cluster Mounting/Installation Performance)?

- Common symptoms include erratic speedometer readings, ABS warning light illumination, and issues with the vehicle stability control system.

2. What are the possible causes of OBDII code C123C?

- Possible causes of this code include a loose or misaligned sensor cluster, damaged wiring harness, or faulty sensor cluster module.

3. How can I diagnose the issue related to OBDII code C123C?

- Diagnose the issue by inspecting the sensor cluster mounting for proper alignment, checking the wiring harness for damage, and using a professional diagnostic tool to read the code.

4. Is it safe to continue driving with OBDII code C123C present?

- It is not recommended to continue driving with this code present, as it may affect the accuracy of your speedometer readings and compromise the vehicle's stability control system.

5. How can I repair OBDII code C123C?

- Repair options include repositioning or securing the sensor cluster, repairing any damaged wiring, or replacing the sensor cluster module if necessary.

6. Can OBDII code C123C be triggered by other underlying issues?

- Yes, this code may also be triggered by issues such as a faulty ABS sensor, damaged wheel speed sensor, or problems with the vehicle's electronic stability control system.

7. How much does it typically cost to repair OBDII code C123C?

- The cost of repair can vary depending on the underlying issue, but it may range from $100 to $500 for sensor cluster adjustments, wiring repairs, or sensor replacements.

8. Can OBDII code C123C be reset without fixing the underlying issue?

- While you can reset the code temporarily, it is crucial to address the underlying problem to prevent further issues with the vehicle's safety systems.

9. Will OBDII code C123C cause my vehicle to fail an emissions test?

- This code is not directly related to emissions, so it may not cause your vehicle to fail an emissions test. However, it should still be addressed to ensure proper vehicle operation.

10. How can I prevent OBDII code C123C from recurring in the future?

- To prevent the code from recurring, regularly inspect the sensor cluster mounting, ensure proper installation, and promptly address any issues related to the vehicle's stability control system.