Short to ground in control circuit of Fuel Pressure Regulator is detected, PCM sets P0091.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical Monitoring | 1. Poor Connector Connection 2. Short to Ground in Fuel Pressure Regulator Control Circuit 3. Defected Fuel Pressure Regulator |
Enable Conditions |
•
Battery voltage higher than 10V and lower than 16V
•
No relevant DTC present | |
Threshold Value |
•
Voltage at the low side output pin lower than 2.2V
•
Current at the high side output pin higher than 15A | |
Diagnostic Time |
•
Continuous | |
Mil On Condition |
•
2 Driving Cycle |
