P0105

P0105 ABSOLUTE PRESSURE SENSOR







COMPONENT DESCRIPTION
The absolute pressure sensor detects ambient barometric pressure and sends the voltage signal to the ECM. As the pressure increases, the voltage rises.

On Board Diagnosis Logic
Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM.

Possible Cause
- Harness or connectors
(Absolute pressure sensor circuit is open or shorted.)
- Absolute pressure sensor

DTC Confirmation Procedure

NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 10 seconds before conducting the next test.




With CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Wait at least 10 seconds.
4. If 1st trip DTC is detected, go to "Diagnostic Procedure".

With GST
Follow the procedure "WITH CONSULT-II" above.

EC-AP/SEN-01:

Wiring Diagram

Step 1 - 2:

Step 3 - 7:

Step 8:

Diagnostic Procedure

Component Inspection

ABSOLUTE PRESSURE SENSOR
1. Remove absolute pressure sensor with its harness connector connected.
2. Remove hose from absolute pressure sensor.
3. Install a vacuum pump to absolute pressure sensor.







4. Turn ignition switch "ON" and check output voltage between ECM terminal 120 and engine ground under the following conditions.

CAUTION:
- Always calibrate the vacuum pump gauge when using it.
- Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or over 101.3 kPa (760 mmHg, 29.92 inHg) of pressure.

5. If NG, replace absolute pressure sensor.

Removal and Installation

ABSOLUTE PRESSURE SENSOR
Refer to "INTAKE MANIFOLD"