Absolute Pressure Sensor: Testing and Inspection

COMPONENT INSPECTION
Absolute Pressure Sensor

With Consult
1. Start engine and warm it up to normal operating temperature.
2. Perform "MAP/BARO SW/V" in "ACTIVE TEST" mode with CONSULT.
3. Check the following.
- Condition: At idle under no-load
- CONSULT display
If NG, go to step 4; if OK, inspection end.
4. Turn ignition switch "OFF".
5. Remove absolute pressure sensor with its harness connector connected.
6. Remove hose from absolute pressure sensor.




7. Turn ignition switch "ON" and check output voltage between terminal (2) and engine ground.
The voltage should be 3.2 to 4.8 V.
8. Use pump to apply vacuum of -26.7 kPa (-200 mm Hg, -7.87 in Hg) to absolute pressure sensor as shown in figure and check the output voltage.
The voltage should be 1.0 to 1.4 V lower than the value measured in step 3.

CAUTION:
- Always calibrate the vacuum pump gauge when using it.
- Do not apply pressure over 101.3 kPa (760 mmHg, 29.92 in Hg).

9. If NG, replace absolute pressure sensor.