PCM/ECM sets DTC P06A4 if the PCM/ECM detects reference voltage of APT is lower than threshold value.
Item | Detecting Condition | Possible Cause | |
Case 1 | DTC Strategy |
•
Short to ground | 1. Short to ground in power circuit 2. Poor connection or damaged harness 3. Faulty APT |
Enable Conditions |
•
IG "ON" | ||
Threshold Value |
•
Short to ground
•
APT power supply voltage < 0.7 V | ||
Case 2 | DTC Strategy |
•
Electrical check | |
Enable Conditions |
•
IG ON | ||
Threshold Value |
•
Sensor or harness problem
•
0.7 V ≤ APT power supply voltage < 4.5 V | ||
Diagnostic Time |
•
0.1 sec. | ||
Mil On Condition |
•
1 driving cycle | ||
( ※ APT : Air-Con Pressure Transducer )
