AutoCodes – Acura – P1879 Acura

P1879 Acura Code - Problem in CVT Start Clutch Pressure Control Valve Assembly Circuit

Quick Answer

The Transmission Control Module (TCM) monitors the CVT Start Clutch Pressure Control Valve Assembly. Common causes include Faulty CVT Start Clutch Pressure Control Valve, CVT Start Clutch Pressure Control Valve harness is open or shorted, CVT Start Clutch Pressure Control Valve 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: P1879 Acura indicates Problem in CVT Start Clutch Pressure Control Valve Assembly Circuit.
Common causes: Common causes include Faulty CVT Start Clutch Pressure Control Valve, CVT Start Clutch Pressure Control Valve harness is open or shorted, CVT Start Clutch Pressure Control Valve 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 1,249

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 Feb 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1879 Acura Description

The Transmission Control Module (TCM) monitors the CVT Start Clutch Pressure Control Valve Assembly. The TCM sets the OBDII code when the CVT Start Clutch Pressure Control Valve Assembly is not to factory specifications.

OBDII Code P1879 Acura - Problem in CVT Start Clutch Pressure Control Valve Assembly Circuit - AutoCodes.com — P1879 Acura Code - Problem in CVT Start Clutch Pressure Control Valve Assembly Circuit

What does this mean?

What are the Possible Causes of the DTC P1879 Acura?

Faulty CVT Start Clutch Pressure Control Valve
CVT Start Clutch Pressure Control Valve harness is open or shorted
CVT Start Clutch Pressure Control Valve circuit poor electrical connection

How to Fix the DTC P1879 Acura?

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 P1879 Acura 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 P1879 Acura code?

Need more information on how to fix the P1879 Acura code? Get Access to Factory Service Manuals

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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 P1879 Acura Code

1. What does OBDII code P1879 mean on an Acura?

P1879 indicates a problem in the Continuously Variable Transmission (CVT) Start Clutch Pressure Control Valve Assembly Circuit.

2. What are the common symptoms of code P1879 in an Acura?

Symptoms may include poor transmission performance, delayed or harsh shifting, CVT warning lights, or the vehicle entering limp mode.

3. What causes the P1879 code to appear?

Common causes include a faulty start clutch pressure control valve, damaged wiring or connectors, low transmission fluid, or an issue with the transmission control module (TCM).

4. Can driving with code P1879 damage my Acura?

Yes, driving with this code can lead to further transmission damage or unsafe driving conditions if the issue is not resolved promptly.

5. How do I diagnose the P1879 code in my Acura?

Diagnosis includes checking the CVT fluid level, inspecting the wiring and connectors for damage, and testing the pressure control valve and related circuits.

6. Can low transmission fluid cause the P1879 code?

Yes, insufficient or contaminated transmission fluid can affect the operation of the start clutch pressure control valve and trigger this code.

7. How can I fix the P1879 code on my Acura?

Repairs may involve replacing the pressure control valve, repairing damaged wiring, cleaning or replacing connectors, or performing a transmission fluid service.

8. How much does it cost to fix the P1879 code?

Repair costs vary but typically range from $200 to $1,000 depending on whether the issue is with wiring, the pressure control valve, or other components.

9. Can I clear the P1879 code without fixing the problem?

Clearing the code without addressing the root cause will likely result in the code returning and can lead to further transmission issues.

10. Is the P1879 code unique to Acura vehicles?

While the code is common in Acura models with CVT transmissions, similar codes may appear in other makes with different definitions. Always refer to your specific vehicle's repair manual.