PCM/ECM set DTC P0620 If it is open or short in Control circuit of alternator. If this DTC is set, Idle stop is not performing.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Signal check | 1. Open or Short in harness 2. Poor connection or damaged harness |
Enable Conditions |
•
Desired alternator voltage duty cycle ≥ 3.12%, ≤ 94.5%
•
Engine speed >240rpm
•
Battery voltage <16V, >10.73V | |
Threshold Value |
•
Open or Short circuit | |
Diagnostic Time |
•
Continuous | |
MIL On Condition |
•
DTC only(Idle stop forbidden) |
