AutoCodes – Lexus – P0768 Lexus

P0768 Lexus Code - Shift Solenoid 'D' Electrical Malfunction

Quick Answer

The Shift Solenoid Valve 'D' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the Park/Neutral Position (PNP) switch, vehicle speed, and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Shift Solenoid Valve 'D'. 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: P0768 Lexus indicates Shift Solenoid 'D' Electrical Malfunction.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Shift Solenoid Valve 'D'.
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 14,314

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 Aug 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0768 Lexus Description

The Shift Solenoid Valve 'D' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the Park/Neutral Position (PNP) switch, vehicle speed, and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position. The Diagnostic Trouble Code (DTC) is detected when the gear required by the TCM does not match the actual gear when the vehicle is driven.

OBDII Code P0768 Lexus - Shift Solenoid 'D' Electrical Malfunction - AutoCodes.com — P0768 Lexus Code - Shift Solenoid 'D' Electrical Malfunction

What does this mean?

What are the Possible Causes of the DTC P0768 Lexus?

Low transmission fluid level
Dirty transmission fluid
Faulty Shift Solenoid Valve 'D'
Shift Solenoid Valve 'D' harness or connectors
Shift Solenoid Valve 'D' circuit is open or shorted

How to Fix the DTC P0768 Lexus?

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 P0768 Lexus 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.

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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.