← View Generic P0884 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0884: P0884: Transmission Control Module (TCM) Internal Circuit Failure

on 2021 Honda PASSPORT

Fix Cost
$500 - $1500
Parts & Labor
Difficulty
4/5
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 P0884 Mean on 2021 Honda PASSPORT?

The Transmission Control Module (TCM) internal circuit has failed, preventing the transmission from functioning properly.
⚠️

Symptoms

  • • Transmission slips
  • • hesitation
  • • or refuses to engage gears
  • • erratic transmission behavior
  • • check engine light on
🔍

Common Causes

  • • Faulty TCM internal circuit
  • • wiring issue
  • • or software problem
🛠️

How to Fix P0884 on 2021 Honda PASSPORT

1. Disconnect battery to reset TCM, 2. Check and repair or replace wiring, 3. Update TCM software, 4. Replace TCM if necessary

🔧

Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Transmission Control Module Shop ↗ Wiring harness Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with P0884

P0882 Sequential Code

P0882: Transmission Control Module (TCM) Internal Circuit Malfunction

Medium
P0883 Sequential Code

P0883: Transmission Control Module (TCM) Internal Temperature Sensor Circuit Malfunction

Medium
P0885 Sequential Code

P0885: Transmission Control Module (TCM) Internal Failure

High
P0886 Sequential Code

P0886: Transmission Control Module (TCM) Internal Failure

High

💡 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