AutoCodes - Mercury - U1027 MERCURY

U1027 MERCURY Code - Invalid Or Missing Data For Engine RPM

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U1027 MERCURY code possible causes

  • Faulty Anti-Lock Brake System (ABS) Control Module
  • Anti-Lock Brake System Control Module harness is open or shorted
  • Anti-Lock Brake System Control Module circuit poor electrical connection

|How do I fix the U1027 MERCURY code?

Check 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.

|Cost of diagnosing the U1027 MERCURY code

Labor: 1.0

The cost of diagnosing the U1027 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.

|What are U1027 MERCURY code possible symptoms?

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

|U1027 MERCURY code description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication from Anti-Lock Brake System (ABS) Control Module, Diagnostic Trouble Code (DTC) is set.
OBDII Code U1027 Mercury - Invalid Or Missing Data For Engine RPM -

|Need more information with the U1027 MERCURY code?

Need more information on how to fix the U1027 MERCURY code? Get Access to Factory Service Manuals

|Need help with a U1027 MERCURY code?

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|U1027 MERCURY code comments

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