Technician A says that the ECM will compare sensor data with an expected or commanded value provided by a calibration lookup table and ask a series of "if" questions. Technician B says if the lookup-table value matches the sensed measurement, then the ECM changes the electrical signal supplied to the actuator. Who is right?
A)A only"
B)B only"
C)Both A and B
D)Neither A nor B"

Question

Quizplus · Accepted Answer

The ECM uses calibration lookup tables to compare sensor data with expected values and makes decisions based on "if" conditions. However, if the lookup-table value matches the sensed measurement, the ECM typically maintains the current signal rather than changing it.

Technician a Says That the ECM Will Compare Sensor Data