OBDII Code List

U0140 MERCURY - Lost Communication With Body Control Module

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

  • Communication error
  • Faulty Body Control Module (BCM)
  • Body Control Module (BCM) harness is open or shorted
  • Body Control Module (BCM) circuit poor electrical connection

Possible symptoms

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

U0140 Mercury Description

The Powertrain Control Module (PCM) continuously monitors Controller Area Network (CAN) for messages from Body Control Module (BCM). The U0140 code sets when the PCM does not receive the BCM message within the defined amount of time.
OBDII Code U0140 Mercury - Lost Communication With Body Control Module -

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Related Information

U0140 MERCURY Comments

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