P0533 is set when the voltage above 4700mV - maximum voltage of A/C refrigerant pressure sensor signal - is detected for more than 3 sec. This code is due to open or short in signal or ground circuit of A/C refrigerant pressure sensor.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal monitoring | 1. A/C refrigerant pressure sensor ground circuit is open. 2. A/C refrigerant pressure sensor signal circuit is short to battery. 3. Faulty A/C refrigerant pressure sensor. | |
Enable Conditions |
•
Engine running | ||
Threshold Value |
•
The A/C refrigerant pressure sensor ground circuit is open or signal circuit is short to battery. | ||
Fail Safe | Fuel Cut |
•
NO | |
EGR Off |
•
NO | ||
Fuel Limit |
•
NO | ||
Check Lamp |
•
NO | ||
