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.
ECM set DTC P0616 if starter relay is short to ground or engine is not starting when auto-starting condition is met.
Item
Detecting Condition
Possible Cause
DTC Strategy
Short circuit to GND
Poor connection
Short to ground in control circuit
Starter Relay
Enable Conditions
Automatic start
Threshold Value
Output stage voltage of starter relay < 2V
Diagnostic Time
0.03 sec
MIL ON Condition
DTC only
Specification
Coil Resistance (O)
70 ~ 120