ECM detects the signal exchages between micro-processor and sensor/actuator.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Rationality check (The internal ROM check) | 1. Poor connection 2. ECM |
Enable Conditions |
•
- | |
Threshold Value |
•
Check sum fault (ROM) | |
Diagnostic Time |
•
- | |
MIL ON Condition |
•
Immediately |
