P06B4

2017-10-10

Description:

  • Any component of the car is not receiving specified power supply

Possible Symptoms:

  • Smell of rotten egg from exhaust pipe

  • Possible higher fuel consumption

Possible Causes:

  • Faulty Engine Control Module (ECM)

  • ECM harness is open or shorted

  • ECM circuit poor electrical connection

  • Shorted sensor on 5 volt circuit

Related Parts:

  • Engine Control Module (ECM): ECM is the part of the car computer that controls the engine system and performance. Problems lead to poor fuel economy, engine stalling & unwanted engine vibrations

Possible Solutions:

  • Check wirings and plugs

  • Replace fan relay

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