PCM sets DTC P06A4 if the PCM detects reference voltage of Sensors are lower than threshold value.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical Monitoring | 1. Poor Connector Connection 2. Short to Ground in Power Circuit 3. Defected A/C Pressure Sensor 4. Defected Fuel Tank Pressure Sensor 5. Defected Fuel Rail Pressure Sensor |
Enable Conditions |
•
Ignition Key "ON" | |
Threshold Value |
•
Power Supply Voltage for Sensors less than 0.7V
•
Power Supply Voltage for Sensors higher than or equal to 0.7V and lower than 4.5V | |
Diagnostic Time |
•
Continuous | |
MIL On Condition |
•
1 Driving Cycle |
