Cummins ISB4.5 CM2150 Fault Code: 689 PID: 190 SPN: 190 FMI: 2 Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect.
Circuit DescriptionThe engine control module (ECM) provides a 5 volt supply to the engine crankshaft speed/position sensor on the sensor...