With start signal from IG key, ECM grounds a coil of starter relay in order to start engine. In case of ISG, ECM starts engine if idle stop release condition or auto-start condition are met.
If there is Open or Short to battery in Starter Relay circuit, ECM sets DTC P0617.
Item | Detecting Condition | Possible Cause | |
Case1 | DTC Strategy |
•
Circuit continuity check, low |
•
Poor connection
•
Open or Short circuit to battery
•
Starter Relay |
Enable Conditions |
•
Engine speed > 240rpm
•
Battery voltage < 16V, > 10.73V | ||
Threshold Value |
•
Short circuit to battery | ||
Diagnostic Time |
•
Continuous | ||
Case2 | DTC Strategy |
•
Open relay | |
Enable Conditions |
•
Delta battery voltage > 9V
•
Counter schedule of phase signal ≤ 2times
•
Automatic start | ||
Threshold Value |
•
Engine speed = 0rpm | ||
Diagnostic Time |
•
0.45 sec | ||
MIL ON Condition |
•
DTC only | ||
Item | Specification |
Coil Resistance (Ω) | 70 ~ 120 |
