PCM sets DTC P0625 if the PCM detects output duty signal lower than the possible range of a properly operating alternator.
| Item | Detecting Condition | Possible Cause | |
| DTC Strategy | 
										•
									 Electrical Check | 1. Short to battery in harness 2. Poor connection or damaged harness | |
| Enable Conditions | Case1 | 
										•
									 Time after ignition ON > 0.1sec. 
										•
									 Engine speed=0 
										•
									 No main relay error | |
| Case2 | 
										•
									 Engine speed >0rpm 
										•
									 No relevant failure 
										•
									 Battery voltage <16V 
										•
									 600< Engine speed(rpm) <4000 
										•
									 Coolant temp. >73℃(140℉) | ||
| Threshold Value | Case1 | 
										•
									 Alternator load <15% | |
| Case2 | 
										•
									 Alternator load <2% | ||
| Diagnostic Time | Case1 | 
										•
									 1sec. | |
| Case2 | 
										•
									 20sec. | ||
| MIL On Condition | 
										•
									 - | ||