| Inspection |
| 1. |
After disconnecting the vapor hose from the PCV valve, remove the PCV
valve.
|
| 2. |
Reconnect the PCV valve to the vapor hose.
|
| 3. |
Run the engine at idle, then put a finger over the open end of the PCV
valve and make sure that intake manifold vacuum can be felt.
|
| 4. |
If the vacuum is not felt inspect PCV operation, if operating correctly
clean or replace the vapor hose.
|
Schematic Diagram
Operation Principle
Description The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed.