Operation CHARM: Car repair manuals for everyone.

General Information





Component Location





General Description

ECM monitors errors through checksum. Every information consists of the combination of 0 and 1, checksum means summing up all values in a row. Thus, errors are recognized comparing checksum value and the memory value at ECM.

DTC Description

ECM detects the signal exchanges between micro-processor and sensor/actuator.

DTC Detecting Condition