AutoCodes – Nissan – P1776 Nissan

P1776 Nissan Code - Ignition Retard Request Duration Fault

Quick Answer

The Engine Control Module (ECM) controls torque converter clutch solenoid valve to cancel the lock-up condition of Automatic Transmission (A/T). Common causes include Faulty Torque Converter Clutch Solenoid Valve, Torque Converter Clutch Solenoid Valve harness is open or shorted, Torque Converter Clutch Solenoid 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: P1776 Nissan indicates Ignition Retard Request Duration Fault.
Common causes: Common causes include Faulty Torque Converter Clutch Solenoid Valve, Torque Converter Clutch Solenoid Valve harness is open or shorted, Torque Converter Clutch Solenoid 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 16,814

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 Sep 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1776 Nissan Description

The Engine Control Module (ECM) controls torque converter clutch solenoid valve to cancel the lock-up condition of Automatic Transmission (A/T). When the solenoid valve is turned on, lock-up is cancelled. When the solenoid valve is turned off, A/T lock-up is operational.

OBDII Code P1776 Nissan - Ignition Retard Request Duration Fault - AutoCodes.com — P1776 Nissan Code - Ignition Retard Request Duration Fault

What does this mean?

What are the Possible Causes of the DTC P1776 Nissan?

Faulty Torque Converter Clutch Solenoid Valve
Torque Converter Clutch Solenoid Valve harness is open or shorted
Torque Converter Clutch Solenoid Valve circuit poor electrical connection
Low Transmission fluid

How to Fix the DTC P1776 Nissan?

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 P1776 Nissan 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.