AutoCodes – Generic – P2858

P2858 Code - Clutch 'B' Pressure Engagement Performance

Quick Answer

The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Common causes include High clutch & reverse brake solenoid valve, Control valve assembly. 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: P2858 indicates Clutch 'B' Pressure Engagement Performance.
Common causes: Common causes include High clutch & reverse brake solenoid valve, Control valve assembly.
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 12,731

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 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2858 Description

The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Thus, the clutch pressure is adjusted to be appropriate to the engine load state and vehicle driving state. It becomes possible to finely control the clutch hydraulic pressure with high precision and a smoother shift change characteristic is attained.

OBDII Code P2858 - Clutch 'B' Pressure Engagement Performance - AutoCodes.com — P2858 Code - Clutch 'B' Pressure Engagement Performance

What does this mean?

What are the Possible Causes of the DTC P2858?

High clutch & reverse brake solenoid valve
Control valve assembly

How to Fix the DTC P2858?

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 P2858 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 P2858 code?

Need more information on how to fix the P2858 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2858 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P2858 Nissan — Clutch 'B' Pressure Engagement Performance

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 P2858 Code

1. What are the common symptoms of OBDII code P2858 (Clutch 'B' Pressure Engagement Performance)?

- Common symptoms may include difficulty shifting gears, slipping transmission, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P2858?

- Potential causes can include low transmission fluid levels, a faulty clutch pressure control solenoid, a malfunctioning transmission control module, or internal transmission issues.

3. How can I diagnose OBDII code P2858?

- Diagnosing this code typically involves checking the transmission fluid level and condition, performing a visual inspection of wiring and connectors, and using a scan tool to retrieve and analyze transmission data.

4. What are some repair tips for resolving OBDII code P2858?

- Repair tips may include checking and replenishing transmission fluid, replacing the clutch pressure control solenoid, repairing or replacing damaged wiring or connectors, and resetting the transmission control module.

5. Can I drive my vehicle with OBDII code P2858 present?

- It is not recommended to drive your vehicle with this code present, as it can lead to further transmission damage and potential safety risks. It's best to address the issue promptly.

6. How much does it cost to repair OBDII code P2858?

- The cost of repairing this code can vary depending on the underlying cause, the extent of the repairs needed, and labor rates in your area. It's advisable to consult a professional mechanic for an accurate estimate.

7. Will resetting the Check Engine Light resolve OBDII code P2858?

- Resetting the Check Engine Light may temporarily turn it off, but it will not fix the underlying issue causing OBDII code P2858. The problem should be diagnosed and repaired to prevent further complications.

8. Is OBDII code P2858 specific to certain vehicle makes and models?

- OBDII code P2858 can occur in various vehicle makes and models that are equipped with an OBDII system and an automatic transmission with clutch engagement components.

9. What are the long-term effects of ignoring OBDII code P2858?

- Ignoring this code can lead to worsening transmission performance, potential transmission failure, and costly repairs. Addressing the issue promptly can prevent further damage.

10. Can a DIY enthusiast repair OBDII code P2858 at home?

- While some aspects of diagnosing and repairing OBDII code P2858 can be tackled by DIY enthusiasts with the right tools and knowledge, it is recommended to seek professional help for accurate diagnosis and repair to ensure the issue is resolved correctly.