AutoCodes – Nissan – C1120 Nissan

C1120 Nissan Code - Front Left Input 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: C1120 Nissan indicates Front Left Input 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 17,404

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 C1120 Nissan 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 C1120 Nissan - Front Left Input ABS Solenoid - AutoCodes.com — C1120 Nissan Code - Front Left Input ABS Solenoid

What does this mean?

What are the Possible Causes of the DTC C1120 Nissan?

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 C1120 Nissan?

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 C1120 Nissan 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 C1120 Nissan Code

1. What are the common symptoms of OBDII code C1120 Nissan related to the Front Left Input ABS Solenoid?

The common symptoms include the ABS warning light illuminating on the dashboard, poor braking performance, and potential loss of traction control.

2. What are the possible causes of OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

The code can be triggered by issues such as a faulty ABS solenoid, damaged wiring or connectors, low brake fluid level, or a malfunctioning ABS control module.

3. How can I diagnose the OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

Diagnosis involves using an OBDII scanner to retrieve the fault codes, conducting a visual inspection of the ABS components, testing the ABS solenoid, and checking the wiring for any damage or loose connections.

4. Can I still drive my vehicle with OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

It is not recommended to drive the vehicle with this code present, as it can affect the proper functioning of the ABS system and compromise overall safety on the road.

5. How can I repair OBDII code C1120 Nissan related to the Front Left Input ABS Solenoid?

Repair options may include replacing the faulty ABS solenoid, repairing or replacing damaged wiring, ensuring the brake fluid level is adequate, and resetting the ABS system after repairs are completed.

6. Are there any DIY tips for addressing OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

While some basic inspections and checks can be done by DIY enthusiasts, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair of ABS system components.

7. How much does it typically cost to repair OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

The cost of repairs can vary depending on the specific issue causing the code, the labor rates in your area, and whether any parts need to be replaced. It is advisable to get a few quotes from different repair shops.

8. Can weather conditions affect the triggering of OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate existing issues with the ABS system and lead to the triggering of fault codes like C1120. Regular maintenance and inspections are crucial in such conditions.

9. How often should I have my ABS system inspected to prevent OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

Routine inspections of the ABS system, as part of regular vehicle maintenance, can help identify potential issues early on and prevent the occurrence of fault codes like C1120. It is recommended to have the ABS system checked during scheduled service intervals.

10. Can a low battery voltage trigger OBDII code C1120 Nissan for the Front Left Input ABS Solenoid?

Low battery voltage can impact the proper functioning of various vehicle systems, including the ABS system, and potentially lead to the triggering of fault codes like C1120. Ensuring a properly charged battery is essential for optimal vehicle operation.