U010E Code: Meaning, Symptoms, Causes & Fix

U010E

Overview

U010E is triggered when monitoring logic identifies an issue with Lost Communication With Reductant Control Module affecting module-to-module CAN communication.

Symptoms

  • intermittent no-start or limp mode
  • module not responding in scan tool
  • feature communication timeout

Common causes

  • Module power/ground instability affecting lost communication with reductant control module
  • Network termination or gateway fault
  • Connector pin damage/corrosion or harness stress near related components

How to diagnose U010E

  1. Confirm U010E and capture freeze-frame data with a professional scan tool.
  2. Inspect wiring, connectors, and grounds related to lost communication with reductant control module for obvious defects.
  3. Check CAN high/low integrity, network termination resistance, and module wake-up status.
  4. Check for related DTCs to identify the root-cause chain before replacing parts.
  5. After repair, clear codes and confirm readiness monitors complete without recurrence.

Severity of code U010E

Moderate: This code is moderate severity: the vehicle may still operate, but fault progression can increase repair cost over time.

Can you drive with U010E?

Most vehicles can be driven short-term with U010E, but postpone heavy load/highway driving until repaired.

If the warning lamp is flashing or drivability/safety is affected, avoid driving and diagnose immediately.

How to fix it (step-by-step)

  1. Repair obvious wiring/connector faults first to prevent repeat parts replacement.
  2. Address the root fault mode (communication) in the lost communication with reductant control module circuit/system.
  3. Apply the required relearn/adaptation procedure if specified by service information.
  4. Road-test and verify U010E remains cleared under the conditions that originally set the code.

Fix options

  • Scan all modules for communication chain faults.
  • Repair CAN high/low wiring or termination issue.
  • Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$260-$1300

Common mistakes when diagnosing U010E

  • Replacing parts without verifying voltage, ground, and signal integrity first.
  • Ignoring related stored/pending codes that indicate upstream faults.
  • Skipping post-repair verification drive cycle and readiness checks.

U010E in common vehicles

U010E appears across makes such as Nissan, Hyundai, Kia, Volkswagen. Failure patterns differ by platform: wiring routes, software calibration, and component supplier revisions can change root cause.

Frequently asked questions

What causes U010E?

U010E is commonly set by communication faults affecting lost communication with reductant control module.

How much does it cost to fix U010E?

For U010E, repair costs are typically $260-$1300 depending on exact root cause, labor rates, and part quality.

Can I clear U010E without repair?

You can clear U010E temporarily, but the code usually returns until the underlying fault is corrected.

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