AutoCodes – Subaru – P1C04 Subaru

P1C04 Subaru Code - Output Clutch Linear Solenoid Control Circuit Low

Quick Answer

The Engine Control Module (ECM) monitors the Output Clutch Linear Solenoid. Common causes include Faulty Output Clutch Linear Solenoid, Output Clutch Linear Solenoid harness is open or shorted, Output Clutch Linear Solenoid 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: P1C04 Subaru indicates Output Clutch Linear Solenoid Control Circuit Low.
Common causes: Common causes include Faulty Output Clutch Linear Solenoid, Output Clutch Linear Solenoid harness is open or shorted, Output Clutch Linear Solenoid 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 1,350

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 Mar 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1C04 Subaru Description

The Engine Control Module (ECM) monitors the Output Clutch Linear Solenoid. The ECM sets the OBDII code when the Output Clutch Linear Solenoid is not to factory specifications.

OBDII Code P1C04 Subaru - Output Clutch Linear Solenoid Control Circuit Low - AutoCodes.com — P1C04 Subaru Code - Output Clutch Linear Solenoid Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P1C04 Subaru?

Faulty Output Clutch Linear Solenoid
Output Clutch Linear Solenoid harness is open or shorted
Output Clutch Linear Solenoid circuit poor electrical connection

How to Fix the DTC P1C04 Subaru?

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 P1C04 Subaru 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 P1C04 Subaru code?

Need more information on how to fix the P1C04 Subaru code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1C04 Subaru 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 P1C04 Subaru Code

1. What are the common symptoms of OBDII code P1C04 in a Subaru related to the Output Clutch Linear Solenoid Control Circuit Low?

- Common symptoms include rough shifting, transmission slipping, poor acceleration, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P1C04 in a Subaru?

- Possible causes include a faulty linear solenoid, damaged wiring or connectors in the solenoid circuit, low transmission fluid levels, or issues with the transmission control module.

3. How can I diagnose the Output Clutch Linear Solenoid Control Circuit Low issue in my Subaru?

- Diagnosing the issue involves using an OBDII scanner to retrieve the specific code, inspecting the wiring and connectors for damage, checking the transmission fluid level, and testing the linear solenoid for proper functioning.

4. Can I continue driving my Subaru with OBDII code P1C04 present?

- It is not recommended to continue driving your Subaru with this code present, as it can lead to further damage to the transmission and potentially unsafe driving conditions.

5. How can I repair OBDII code P1C04 in my Subaru?

- Repairing the issue may involve replacing the faulty linear solenoid, repairing damaged wiring or connectors, topping up the transmission fluid, or reprogramming the transmission control module.

6. Is it possible to reset the OBDII code P1C04 in my Subaru without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is not recommended to do so without addressing the root cause, as the issue may persist and cause further problems.

7. How much does it typically cost to repair OBDII code P1C04 in a Subaru?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $200 to $800 including parts and labor.

8. Are there any preventive maintenance tips to avoid OBDII code P1C04 in a Subaru?

- Regularly servicing your transmission, checking and maintaining proper fluid levels, and addressing any transmission-related issues promptly can help prevent this code from appearing.

9. Can a DIY enthusiast repair OBDII code P1C04 in a Subaru?

- While some aspects of diagnosing and repairing this code can be done by DIY enthusiasts, working on the transmission and its components may require specialized tools and expertise best left to professional mechanics.

10. How long does it typically take to repair OBDII code P1C04 in a Subaru?

- The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take anywhere from a few hours to a full day to address this code effectively.