← View Generic P0810 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0810: P0810: Transmission Control Module (TCM) Range/Performance Problem

on 2021 Honda PASSPORT

Fix Cost
$200 - $1000
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 P0810 Mean on 2021 Honda PASSPORT?

The TCM has detected a problem with the transmission's range and performance, which can cause issues with gear shifting, transmission slipping, or hesitation.
⚠️

Symptoms

  • • Transmission slipping
  • • hesitation
  • • or difficulty shifting gears
  • • unusual noises
  • • or the check engine light is illuminated.
🔍

Common Causes

  • • Faulty transmission solenoid
  • • faulty transmission sensor
  • • low transmission fluid level
  • • clogged transmission filter
  • • or a problem with the transmission control module.
🛠️

How to Fix P0810 on 2021 Honda PASSPORT

1. Check transmission fluid level and top off if necessary. 2. Scan for any other trouble codes. 3. Check for any transmission solenoid or sensor issues. 4. Replace the transmission filter if it's clogged. 5. If none of the above steps resolve the issue, replace the transmission control module.

🔧

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 sensor Shop ↗ Transmission filter Shop ↗ Transmission control module Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

Shop Scanners ↗
🔗

Related Diagnostic Codes

Other codes that may appear with P0810

P0808 Sequential Code

P0808: Transmission Control Module (TCM) Range/Performance Issue

Medium
P0809 Sequential Code

P0809: Transmission Control Module (TCM) Range/Performance Issue

Medium
P0811 Sequential Code

P0811: Transmission Control Module (TCM) Range/Performance Issue

Medium
P0812 Sequential Code

P0812: Transmission Control Module (TCM) Internal Fault

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