← View Generic P0740 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0740: Torque Converter Clutch Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost
$100 - $800
Parts & Labor
Difficulty
4/5
2-6 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
⚠️

Important for 2021 Honda PASSPORT Owners

Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0740 Mean on 2021 Honda PASSPORT?

The torque converter clutch is not engaging or disengaging properly. This affects fuel economy and transmission operation.
⚠️

Symptoms

  • • Poor fuel economy
  • • transmission overheating
  • • shuddering during acceleration
  • • no lockup feel
  • • transmission slipping.
🔍

Common Causes

  • • Faulty torque converter clutch solenoid
  • • internal torque converter damage
  • • low transmission fluid
  • • valve body issues.
🛠️

How to Fix P0740 on 2021 Honda PASSPORT

Replace torque converter clutch solenoid, check transmission fluid, repair valve body, replace torque converter if needed.

🔧

Need Maintenance Info for Your PASSPORT?

Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.

View 2021 Honda PASSPORT Specs

Parts for 2021 Honda PASSPORT

Transmission Solenoid Shop ↗ Transmission Fluid Shop ↗ Filter Shop ↗ Gaskets Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

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🔗

Related Diagnostic Codes

Other codes that may appear with P0740

P0738 Sequential Code

P0738: Transmission Control System Malfunction

Medium
P0739 Sequential Code

P0739: Transmission Control System Malfunction

Medium
P0741 Sequential Code

P0741: Transmission Control System Malfunction

Medium
P0742 Sequential Code

P0742: Transmission Control System Malfunction

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system