General Information

Component Location





General Description

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.

DTC Description

If desired torque is calculated much higher than actual torque, ECM senses it and decreases desired torque. Also, ECM sets P061B. The causes of this error are abnormal operation of ECM (RAM,ROM, ALU errors) and hardware malfunction such that actual air flow enters the engine is more than the flow recognized by ECM.

DTC Detecting Condition