OBD II Fault Code

  • OBD II P061B

OBD-II Code Decreased engine performance is defined as a Internal Control Module Torque Calculation Performance

The engine control module (PCM) performs many vital functions in a modern vehicle, such as management of the Fuel System, Ignition System, Transmission, Anti-Lock Brake and Traction Control systems. The PCM regularly runs a self-diagnosis function where it performs normal mathematical calculations, and if the results of these calculations are not as expected the PCM will set code P061B.

Decreased engine performance Symptoms

  • Decreased engine performance
  • Engine may not start
  • Engine may stall

Common Problems That Trigger the P061B Code

  • Powertrain Control Module (PCM) failure
  • Wiring issue
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