A malfunction is detected by using a checksum technique for verifying data. The digital data is composed of zeros and ones. A checksum is the total of all ones in a string of data. By comparing the checksum value with a stored value, a malfunction can be detected.
If the calculated torque is much higher than the desired torque, PCM sets P061B. MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till 1 driving cycle.
Item | Detecting Condition | Possible cause |
DTC Strategy | ● Desired torque error | ● Faulty PCM |
Enable Conditions | ● Engine works | |
Threshold value | ● Calculated torque is much higher than desired torque. | |
Diagnosis Time | ● Continuous | |
MIL On Condition | ● 1 driving cycle |
