Detect the status of the battery voltage for A.A.F system in order to operate normally.
If the battery voltage is low voltage, the system is not working. And if battery voltage is high voltage, the AAF actuators may be get damaged.
If the voltage value is higher than the normal value, A.A.F(=Active Air Flap) actuator generates a P0563 fault code.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Check supply voltage | 1. Power circuit wiring, connectors, faulty 2. Poor ground circuit 3. Excessive discharge |
Enable conditions |
•
Engine " ON " | |
Threshold value |
•
The voltage is more than18V and keeps more than 400ms duration
•
The battery voltage keeps more than 16V | |
Diagnosis time |
•
More than 2sec. |
