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U0401 on Honda Cr-V

Invalid Data Received From ECM/PCM A

NHTSA Reports

Severity

medium

Most Affected

2018, 2019

Crashes / Fires

0 / 0

Source: NHTSA Complaints Database · SAE J2012

Last reviewed: Aug 8, 2026 Last updated: Aug 8, 2026

Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Honda Cr-V context without treating complaints as confirmed diagnoses.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for U0401.
NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What U0401 Means on Your Honda Cr-V

U0401 is a diagnostic trouble code indicating: Invalid Data Received From ECM/PCM A. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 HONDA CR-V owners have reported this issue to NHTSA across model years 2018-2019. Most reports come from the 2018, 2019 model years. The most commonly reported component is Power Train (50.0% of reports).

Real Honda Cr-V Owner Reports

Source: NHTSA Complaints Database

"2018 cr-v (~38,200 miles) unexpectedly halted (loss of power - engine kept running) going ~35 mph on lakeville hwy/116 in busy traffic and showed engine/emissions check light and other warning lights."

— 2018 Honda Cr-V owner · POWER TRAIN · Filed 2020-07-29

"My wife was driving the Honda CRV (61k miles, 2019) through a parking lot when suddenly all kinds of buzzers and warning lights came on. There was no warning anything was wrong before this."

— 2019 Honda Cr-V owner · ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE · Filed 2024-11-30

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

'18

'19

Common Causes on Honda Cr-V

Based on NHTSA complaint component analysis for this vehicle.

POWER TRAIN 50%

ELECTRICAL SYSTEM,UNKNOWN or OTHER,ENGINE 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.