← View Generic P0986 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0986: P0986: Transmission Advanced System - Torque Converter Clutch Solenoid Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost
$200 - $500
Parts & Labor
Difficulty
3/5
1-2 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 P0986 Mean on 2021 Honda PASSPORT?

The transmission control module (TCM) has detected a malfunction in the torque converter clutch solenoid circuit, which may cause the transmission to slip or hesitate.
⚠️

Symptoms

  • • Transmission slips
  • • hesitates
  • • or refuses to engage gears
  • • unusual noises
  • • or vibrations while driving.
🔍

Common Causes

  • • Faulty torque converter clutch solenoid
  • • wiring issues
  • • or TCM software problems.
🛠️

How to Fix P0986 on 2021 Honda PASSPORT

1. Clear any trouble codes and test drive the vehicle to verify the issue. 2. Inspect and clean the torque converter clutch solenoid and wiring harness. 3. Replace the torque converter clutch solenoid if faulty. 4. Update the TCM software if necessary.

🔧

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

Torque Converter Clutch Solenoid Shop ↗ Wiring Harness 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 P0986

P0984 Sequential Code

P0984: Transmission Advanced System - Transmission Control Module (TCM) Malfunction

Medium
P0985 Sequential Code

P0985: Transmission Advanced System - Transmission Control Module (TCM) Internal Error

High
P0987 Sequential Code

P0987: Transmission Advanced System - Transmission Control Module (TCM) Malfunction

Medium
P0988 Sequential Code

P0988: Transmission Advanced System - Transmission Control Module (TCM) 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