[SOLVED] Jeep C123C Code: Quick Fix For Sensor Cluster Installation

The OBD code C123C for Jeep indicates an issue with the Sensor Cluster.

Symptoms include the ABS and Engine warning lights being illuminated.

This is often caused by a faulty Sensor Cluster, open/shorted harness, or poor electrical connection.

It’s a moderate issue that should be addressed promptly.

To fix it, inspect the wiring harness and connectors for any damage or corrosion, and ensure connector pins are intact.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

Symptoms of the Jeep c123c OBD Code

The vehicle displays an ABS warning light on the dashboard with fault code Jeep C123C.

Symptoms: AntiLock Brake System (ABS) Warning Light ON.
Engine Light ON (or Service Engine Soon Warning Light).
Possible loss of ABS functionality.
Brake pedal may feel different during braking.
ABS system may not engage during sudden stops.

Causes of the Jeep c123c OBD Code

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Possible triggers for Jeep fault code C123C include issues with the steering angle sensor.

C123C can be caused by a faulty Sensor Cluster.
A Sensor Cluster harness that is open or shorted.
A Sensor Cluster circuit with a poor electrical connection.

Fixing Jeep Error Code c123c Step By Step

To resolve fault code Jeep C123C, inspect and repair the steering angle sensor circuit as needed.

To fix the Jeep OBDII code C123C, start by reviewing the possible causes mentioned above.
Visually examine the wiring harness and connectors related to the ABS module.
Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
If no visible issues are found, perform a diagnostic scan tool test to check for communication faults with the ABS module.
Reset the ABS module and clear the fault codes.
Test drive the vehicle to see if the code returns.
If the code persists, consider replacing the ABS module with a new one and program it to the vehicle.

Cost Of Fixing Jeep c123c Fault Code

Diagnosing and repairing fault code Jeep C123C may involve replacing the steering angle sensor.

The cost to diagnose and fix Jeep OBD code C123C depends on the estimated 1. 0hour repair time.

Labor rates range from $75 to $150 per hour, so the cost could be between $75 and $150. Factors like shop rates and complexity can affect the final cost.

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Details of the Jeep c123c OBD Code

The fault code C123C on a Jeep relates to the steering angle sensor.

Jeep OBD code C123C means the right rear wheel speed sensor input signal is erratic.

This code is triggered by the Antilock Brake System (ABS) module when it detects inconsistent or abnormal signals coming from the right rear wheel speed sensor.

The ABS module monitors wheel speed to ensure proper operation of the ABS system and traction control.

If the signal from the right rear wheel speed sensor is erratic, it can affect the vehicle’s stability and ABS functionality.

Mechanic’s Tech Notes

Detailed information on the specific fault code C123C for Jeep vehicles.

To diagnose and fix OBDII code Jeep C123C, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.

Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.

If communication issues are detected, reprogramming or reflashing the TCM may be necessary.

Additionally, visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.

This thorough inspection will help identify and address potential causes of the C123C fault code.

FAQ

1. What does OBD code C123C mean in a Jeep vehicle?

OBD code C123C in a Jeep means an issue with the Sensor Cluster. Check for faulty sensor cluster, harness issues, or poor electrical connections. Inspect wiring and connectors for damage.

2. What are the common symptoms associated with OBD code C123C in a Jeep?

Common symptoms for OBD code C123C in a Jeep include ABS warning light on, engine light on, caused by faulty sensor cluster or related wiring issues.

3. How can I diagnose and fix OBD code C123C in my Jeep vehicle?

Diagnose OBD code C123C in Jeep: Symptoms ABS & Engine Light ON. Causes Faulty Sensor Cluster, harness issues. Fix Inspect wiring, connectors for damage or corrosion.

Wrap Up

If your Jeep is displaying OBD code c123c and experiencing ABS system malfunctions, it could be caused by a faulty wheel speed sensor, damaged wiring harness, or poor sensor connection.

These issues can lead to inaccurate wheel speed readings and affect the vehicle’s stability control system.

To address Jeep OBD code c123c, start by inspecting the wheel speed sensor connectors for corrosion or damage.

Check the wiring harness for any signs of wear or breaks.

Test the wheel speed sensors for proper operation and replace any faulty components as needed to restore ABS system functionality.