P0489 is set when ‘0'A is detected in Electric EGR control valve circuit for more than 0.5 sec. This code is due to open or short to ground in Electric EGR control valve circuit or internal open in Electric EGR control valve component.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Signal monitoring |
•
Electric EGR control valve circuit
•
Electric EGR control valve component | ||
Enable Conditions |
•
Engine run | |||
Threshold Value |
•
short to GND, wiring open | |||
Diagnostic Time |
•
500ms | |||
Fail Safe | Fuel cut | NO | ||
EGR Off | YES | |||
Fuel Limit | NO | |||
MIL | NO | |||
