ECM is activated by power supply. Signals from several sensors, such as CKPS and APS, is inputted to ECM. Comparing inputted signals with control LOGIC saved at micro controller and EEPROM, ECM controls engine as actuating injectors, solenoids and relays. To guarantee accurate control, ECM performs SELF TEST, DIAGNOSIS of several sensors and actuators. And if serious trouble which affects vehicle performance occurs, ECM sets DTCs. At certain cases, ECM shuts down whole systems in order to prevent dangerous situation due to incorrect control.
P0605 is set when 1) communication error between micro controller inside of ECM and EEP ROM is detected or 2) a different vision of ECM is installed.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
EEPROM monitoring |
•
Version difference between ECM and ECM communication module
•
ECM component failure | ||
Enable Conditions |
•
Engine running | |||
Threshold Value |
•
EEPROM communication error : Communication failure between micro controller inside of ECM and EEPROM. Each data range is activated abnormally. Self test about optional devices (A/C, immobilizer, cruise control). | |||
Diagnostic Time |
•
Immediately | |||
Fail Safe | Fuel cut | YES |
•
- | |
EGR Off | NO | |||
Fuel Limit | NO | |||
MIL | OFF | |||
