AutoCodes – Generic – C123A

C123A Code - ESP System Sensor Calibration

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Electronic Stability Program (ESP) Dynamic Sensor. Common causes include Faulty Dynamic Sensor, Dynamic Sensor harness is open or shorted, Dynamic Sensor 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: C123A indicates ESP System Sensor Calibration.
Common causes: Common causes include Faulty Dynamic Sensor, Dynamic Sensor harness is open or shorted, Dynamic Sensor 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 4,865

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 C123A Description

The Anti-Lock Brake System (ABS) Module monitors the Electronic Stability Program (ESP) Dynamic Sensor. The ABS Module sets the OBDII code when the Dynamic Sensor is not to factory specifications.

OBDII Code C123A - ESP System Sensor Calibration - AutoCodes.com — C123A Code - ESP System Sensor Calibration

What does this mean?

What are the Possible Causes of the DTC C123A?

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

How to Fix the DTC C123A?

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 C123A 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 C123A code?

Need more information on how to fix the C123A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C123A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C123A Chrysler — ESP System Sensor Calibration
C123A Dodge — ESP System Sensor Calibration
C123A Jeep — ESP System Sensor Calibration

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 C123A Code

1. What are the common symptoms of OBDII code C123A related to ESP System Sensor Calibration?

- Common symptoms include the ESP (Electronic Stability Program) warning light illuminating on the dashboard and potential issues with the vehicle's stability control system.

2. What could cause OBDII code C123A to trigger for ESP System Sensor Calibration?

- The code C123A may be triggered due to a malfunction in the ESP sensor or a calibration issue with the sensor related to the vehicle's stability control system.

3. How can I diagnose the OBDII code C123A for ESP System Sensor Calibration?

- Diagnosis typically involves using an OBDII scanner to read the code, checking the sensor connections, inspecting the sensor for damage, and performing calibration procedures as recommended by the manufacturer.

4. Can driving with the OBDII code C123A for ESP System Sensor Calibration pose any risks?

- Driving with the code C123A may affect the vehicle's stability control system, potentially compromising safety during maneuvers that require stability assistance.

5. Is it safe to continue driving my vehicle with the ESP System Sensor Calibration issue?

- It is recommended to address the ESP System Sensor Calibration issue promptly to ensure the vehicle's stability control system functions correctly and maintains optimal safety levels.

6. How can I reset the OBDII code C123A for ESP System Sensor Calibration?

- Resetting the code typically involves using an OBDII scanner to clear the code after addressing the underlying sensor calibration issue.

7. Are there DIY repair tips for fixing OBDII code C123A related to ESP System Sensor Calibration?

- DIY repair tips may include checking sensor connections, inspecting for physical damage, and following manufacturer-recommended calibration procedures if applicable.

8. Can a faulty wheel speed sensor trigger the OBDII code C123A for ESP System Sensor Calibration?

- Yes, a faulty wheel speed sensor can potentially trigger the code C123A as it may affect the calibration and operation of the ESP system sensor.

9. Will fixing the OBDII code C123A for ESP System Sensor Calibration require specialized tools?

- Fixing the code may require basic automotive tools, an OBDII scanner for diagnostics, and potentially manufacturer-specific tools or software for sensor calibration.

10. How important is it to address the OBDII code C123A for ESP System Sensor Calibration promptly?

- It is important to address the code promptly to ensure the proper functioning of the ESP system and maintain optimal safety features in the vehicle.