AutoCodes – Generic – C1123

C1123 Code - Front Right Out ABS Solenoid

Quick Answer

The control unit computes the wheel rotating speed by the signal sent from the sensor. Common causes include Faulty ABS Actuator/Electric Unit, ABS Actuator/Electric Unit harness is open or shorted, ABS Actuator/Electric Unit 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: C1123 indicates Front Right Out ABS Solenoid.
Common causes: Common causes include Faulty ABS Actuator/Electric Unit, ABS Actuator/Electric Unit harness is open or shorted, ABS Actuator/Electric Unit 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 16,311

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 16, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1123 Description

The control unit computes the wheel rotating speed by the signal sent from the sensor. Then it supplies a DC current to the actuator solenoid valve. It also controls ON-OFF operation of the solenoid valve relay and motor relay. If any electrical malfunction should be detected in the system, the control unit causes the warning lamp to turn on. In this condition, the ABS will be deactivated by the control unit, and the vehicle's brake system reverts to normal operation.
The ABS actuator and electric unit (control unit) contains: An electric motor and pump, Two relays, Eight solenoid valves ( each inlet and outlet for LH front, RH front, LH rear, RH rear), and ABS control unit.
These components control the hydraulic circuit that increases, holds or decreases hydraulic pressure to all or individual wheels. The ABS actuator and electric unit (control unit) cannot be disassembled and must be replaced as an assembly.

OBDII Code C1123 - Front Right Out ABS Solenoid - AutoCodes.com — C1123 Code - Front Right Out ABS Solenoid

What does this mean?

What are the Possible Causes of the DTC C1123?

Faulty ABS Actuator/Electric Unit
ABS Actuator/Electric Unit harness is open or shorted
ABS Actuator/Electric Unit poor electrical connection

How to Fix the DTC C1123?

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 does this mean?

Code Tech Notes

The ABS has an electronic control unit to control major functions. The control unit accepts input signals from sensors and controls operation of the actuator. It is also important to check for conventional problems such as air leaks in the booster or lines, lack of brake fluid, or other problems with the brake system.
It is much more difficult to diagnose a problem that occurs intermittently rather than continuously. Most intermittent problems are caused by poor electrical connections or faulty wiring. In this case, careful checking of suspicious circuits may help prevent the replacement of good parts.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1123 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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Need Help with the Code?

Get the C1123 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1123 Ford — Vehicle Speed Sensor Input Short to Battery
C1123 Infiniti — Front Right Out ABS Solenoid
C1123 Lincoln — Vehicle Speed Sensor Input Short to Battery
C1123 Mercury — Vehicle Speed Sensor Input Short to Battery
C1123 Nissan — Front Right Out ABS Solenoid

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 C1123 Code

1. What are the common symptoms of OBDII code C1123 (Front Right Out ABS Solenoid)?

The common symptoms of OBDII code C1123 include the ABS warning light illuminating on the dashboard, poor brake performance, and potential issues with the vehicle's traction control system.

2. What can cause OBDII code C1123 to be triggered?

OBDII code C1123 (Front Right Out ABS Solenoid) is typically triggered by a faulty ABS solenoid in the front right wheel of the vehicle. This can be due to wiring issues, a malfunctioning solenoid valve, or a problem with the ABS control module.

3. How can I diagnose the cause of OBDII code C1123?

Diagnosing the cause of OBDII code C1123 involves using a diagnostic scanner to retrieve the code, inspecting the ABS solenoid and its wiring for any damage or corrosion, and testing the solenoid's functionality using a multimeter.

4. What are some repair tips for fixing OBDII code C1123?

Repairing OBDII code C1123 may involve replacing the front right ABS solenoid, repairing or replacing damaged wiring, or resetting the ABS control module. It is recommended to follow the vehicle's service manual or seek professional assistance for proper repair procedures.

5. Can I still drive my vehicle with OBDII code C1123 present?

It is not recommended to drive your vehicle with OBDII code C1123 present, as it can affect the proper functioning of the ABS system and compromise your vehicle's safety on the road. It is best to address the issue promptly.

6. How much does it typically cost to repair OBDII code C1123?

The cost of repairing OBDII code C1123 can vary depending on the make and model of the vehicle, the extent of the damage, and whether you choose to DIY or seek professional help. It is advisable to get a diagnosis and repair estimate from a trusted mechanic.

7. Can OBDII code C1123 be a recurring issue?

OBDII code C1123 can be a recurring issue if the root cause, such as a faulty ABS solenoid or wiring problem, is not properly addressed during the initial repair. It is important to ensure that all related components are thoroughly inspected and repaired to prevent recurrence.

8. Are there any preventive measures to avoid OBDII code C1123 in the future?

Regular maintenance of the ABS system, including checking for any signs of wear or damage, keeping the system clean, and addressing any warning lights promptly, can help prevent issues like OBDII code C1123 from occurring in the future.

9. Can a DIY enthusiast fix OBDII code C1123 at home?

While some DIY enthusiasts may have the skills and tools to address OBDII code C1123 at home, it is crucial to have the proper diagnostic equipment, technical knowledge, and experience to ensure a successful repair. If in doubt, it is best to seek professional help.

10. How urgent is it to address OBDII code C1123?

It is important to address OBDII code C1123 in a timely manner to prevent potential safety hazards and further damage to the vehicle. Ignoring the issue can lead to brake performance issues and compromised ABS functionality, affecting the vehicle's overall safety on the road.