← View Generic P0730 Guide
Severity: High
🚗
Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P0730: Incorrect Gear Ratio
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 P0730 Mean on 2021 Honda PASSPORT?
The transmission is not achieving the correct gear ratio. The actual gear ratio does not match what the transmission control module expects.
⚠️
Symptoms
- • Slipping transmission
- • harsh shifting
- • no movement in certain gears
- • transmission stuck in one gear
- • poor acceleration.
🔍
Common Causes
- • Internal transmission wear
- • faulty solenoids
- • low transmission fluid
- • valve body problems
- • torque converter issues.
🛠️
How to Fix P0730 on 2021 Honda PASSPORT
Check transmission fluid, replace faulty solenoids, repair or rebuild transmission, replace valve body 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 SpecsParts for 2021 Honda PASSPORT
Essential Tool
🔗
Related Diagnostic Codes
Other codes that may appear with P0730
P0728
Sequential Code
P0728: Transmission Control System Malfunction
Medium
P0729
Sequential Code
P0729: Transmission Control System Malfunction
Medium
P0731
Sequential Code
P0731: Transmission Control System Malfunction
Medium
P0732
Sequential Code
P0732: 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