U0115 - Lost Communication With ECM/PCM 'B'

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

  • Outdated Engine Control Module (ECM) or Powertrain Control Module (PCM) Software Program
  • Faulty ECM/PCM
  • ECM/PCM) harness is open or shorted
  • ECM/PCM circuit poor electrical connection
  • Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • U0115 Description

    The Engine Control Module (ECM) or Powertrain Control Module (PCM) monitors itself for communication problems with other control unit or another part of the control unit itself. The ECM/PCM sets the OBDII code when there is a problem with the communication network.
    OBDII Code U0115 - Lost Communication With ECM/PCM 'B' - AutoCodes.com

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    Related Information

    U0115 Comments

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