AutoCodes – Infiniti – P0868 Infiniti

P0868 Infiniti Code - Secondary Pressure Down

Quick Answer

The Pressure Control Solenoid Valve 'B' (secondary pressure solenoid valve) regulates the secondary pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM). Common causes include Pressure Control Solenoid Valve 'B' (secondary pressure solenoid valve) system, Control Solenoid Valve 'B' harness is open or shorted, Control Solenoid Valve 'B' 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: P0868 Infiniti indicates Secondary Pressure Down.
Common causes: Common causes include Pressure Control Solenoid Valve 'B' (secondary pressure solenoid valve) system, Control Solenoid Valve 'B' harness is open or shorted, Control Solenoid Valve 'B' 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 7,129

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 Jun 29, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
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Code P0868 Infiniti Description

OBDII Code P0868 Infiniti - Secondary Pressure Down - AutoCodes.com — P0868 Infiniti Code - Secondary Pressure Down

What does this mean?

What are the Possible Causes of the DTC P0868 Infiniti?

Pressure Control Solenoid Valve 'B' (secondary pressure solenoid valve) system
Control Solenoid Valve 'B' harness is open or shorted
Control Solenoid Valve 'B' circuit poor electrical connection
Transmission Pressure Sensor 'A' (secondary pressure sensor)
Line pressure control system

How to Fix the DTC P0868 Infiniti?

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 P0868 Infiniti 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 P0868 Infiniti code?

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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.