OBDII Code List

U1039 MERCURY - Invalid or Missing Data for Primary Id Vehicle Speed

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Vehicle Speed Sensor
  • Vehicle speed sensor harness or connectors is open or shorted
  • Vehicle speed sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
  • Tech notes

    There is a factory service bulletin for the following Mercury models:

    1998-2002 Mercury Grand Marquis
    1998-2002 Mercury Sable
    1998-2001 Mercury Mountaineer

    Mercury Factory Service Bulletin OBDII Codes P0500, P1502 and U1039

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • U1039 Mercury Description

    Network Diagnostic Trouble Code (DTC) occur during module-to-module communication concerns. Invalid data is received from Vehicle Speed Sensor.
    OBDII Code U1039 Mercury - Invalid or Missing Data for Primary Id Vehicle Speed -

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    Related Information

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