Component Location
1. ECM
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
Item | Detecting Condition | Possible Cause |
DTC Strategy | Monitor Desired torque and actual torque
| Poor connection Faulty ECM |
Enable Conditions | Engine works
|
Threshold Value | Desired torque is much higher than actual torque.
|
Diagnostic Time | Continuous
|
MIL ON Condition | DTC only(NO MIL ON)
|