Engine-Codes - Mercury - U05A0 MERCURY

U05A0 MERCURY - Invalid Data Received From Evaporative Emission System Leak Detection Control Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

U05A0 MERCURY Possible Causes

  • Faulty Evaporative Emission System Leak Detection Control Module
  • Evaporative Emission System Leak Detection Control Module harness is open or shorted
  • Evaporative Emission System Leak Detection Control Module circuit poor electrical connection

How is the U05A0 MERCURY code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

Check for other Powertrain Control Module (PCM) codes or PCM related symptoms. Diagnose all other PCM codes or PCM related symptoms first.

What is the cost to diagnose the U05A0 MERCURY code

Labor: 1.0

The cost to diagnose the U05A0 MERCURY code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U05A0 MERCURY Meaning

The Diagnostic Trouble Code (DTC) will set when a network concerns occur during module-to-module communication.
- Invalid data network concerns are set when data is transferred within the normal inter-module message but contains known invalid data. The transmitting module logs a DTC related to the invalid data concern.
- Missing message network concerns are set when missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period.

More Information

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