AutoCodes – Toyota – C120C 2014 Toyota RAV4

C120C 2014 Toyota RAV4 Code - Linear Solenoid Power Supply System Malfunction

Quick Answer

This Diagnostic Trouble Code (DTC) is output by the Four-Wheel Drive (4WD) ECU Assembly if a malfunction occurs in the linear solenoid power supply system. Common causes include Faulty Four-Wheel Drive (4WD) ECU Assembly, 4WD ECU Assembly harness is open or shorted, 4WD ECU Assembly 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: C120C 2014 Toyota RAV4 indicates Linear Solenoid Power Supply System Malfunction.
Common causes: Common causes include Faulty Four-Wheel Drive (4WD) ECU Assembly, 4WD ECU Assembly harness is open or shorted, 4WD ECU Assembly 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 302

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 Jan 18, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C120C 2014 Toyota RAV4 Description

This Diagnostic Trouble Code (DTC) is output by the Four-Wheel Drive (4WD) ECU Assembly if a malfunction occurs in the linear solenoid power supply system.

OBDII Code C120C 2014 Toyota RAV4 - Linear Solenoid Power Supply System Malfunction - AutoCodes.com — C120C 2014 Toyota RAV4 Code - Linear Solenoid Power Supply System Malfunction

What does this mean?

What are the Possible Causes of the DTC C120C 2014 Toyota RAV4?

Faulty Four-Wheel Drive (4WD) ECU Assembly
4WD ECU Assembly harness is open or shorted
4WD ECU Assembly circuit poor electrical connection

How to Fix the DTC C120C 2014 Toyota RAV4?

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 C120C 2014 Toyota RAV4 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 C120C 2014 Toyota RAV4 code?

Need more information on how to fix the C120C 2014 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C120C 2014 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

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 C120C 2014 Toyota RAV4 Code

1. What are the common symptoms of OBDII code C120C in a 2014 Toyota RAV4?

The common symptoms of OBDII code C120C in a 2014 Toyota RAV4 may include issues with shifting gears, decreased fuel efficiency, and the transmission slipping.

2. What does the OBDII code C120C indicate in a 2014 Toyota RAV4?

OBDII code C120C in a 2014 Toyota RAV4 indicates a Linear Solenoid Power Supply System Malfunction within the transmission control module.

3. What are the possible causes of OBDII code C120C in a 2014 Toyota RAV4?

Possible causes of OBDII code C120C in a 2014 Toyota RAV4 include faulty wiring or connectors, a defective linear solenoid, low transmission fluid levels, or a malfunctioning transmission control module.

4. How can I diagnose OBDII code C120C in my 2014 Toyota RAV4?

To diagnose OBDII code C120C in a 2014 Toyota RAV4, you can use an OBDII scanner to retrieve the code and then inspect the wiring, connectors, linear solenoid, and transmission fluid levels for any issues.

5. Can I continue driving my 2014 Toyota RAV4 with OBDII code C120C?

It is not recommended to continue driving your 2014 Toyota RAV4 if you have OBDII code C120C, as it can lead to further damage to the transmission system. It's best to address the issue promptly.

6. How can I repair OBDII code C120C in my 2014 Toyota RAV4?

To repair OBDII code C120C in a 2014 Toyota RAV4, you may need to replace the faulty wiring or connectors, repair or replace the linear solenoid, top up the transmission fluid, or reprogram the transmission control module.

7. Is it possible to reset OBDII code C120C in a 2014 Toyota RAV4 without fixing the issue?

Resetting OBDII code C120C without fixing the underlying issue will only temporarily clear the code. The problem will likely resurface, so it's important to address the root cause of the code.

8. How much does it typically cost to fix OBDII code C120C in a 2014 Toyota RAV4?

The cost to fix OBDII code C120C in a 2014 Toyota RAV4 can vary depending on the specific issue causing the code. Repair costs may include parts and labor, so it's advisable to get a diagnostic and repair estimate from a qualified mechanic.

9. Can a DIY enthusiast tackle the repair for OBDII code C120C in a 2014 Toyota RAV4?

While some DIY enthusiasts may have the skills to address simpler causes of OBDII code C120C, such as checking and replacing fuses or connectors, more complex repairs involving the transmission system may require professional expertise.

10. How can I prevent OBDII code C120C from occurring in my 2014 Toyota RAV4?

To prevent OBDII code C120C in a 2014 Toyota RAV4, it's important to maintain regular transmission fluid checks and changes, address any warning signs promptly, and follow the manufacturer's recommended maintenance schedule.