P0106

E: DTC P0106 - PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM

DTC DETECTING CONDITION:
- Two consecutive driving cycles with fault

CAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How To Clear Diagnostic Trouble Codes. Clearing Diagnostic Trouble Codes





WIRING DIAGRAM

10B1: CHECK ANY OTHER DTC ON DISPLAY.

NOTE: In this case, it is not necessary to inspect DTC P0106.

CHECK: Does the Subaru Select Monitor or OBD-II general scan tool indicate DTC P0107, P0108 or P1112?

YES: Inspect DTC P0107, P0108, P1102 or P1122 using "10 Diagnostics Chart with Trouble Code". P0107 P0108 P1102 P1122

NO: Go to step 10E2.

10E2: CHECK IDLE SWITCH SIGNAL.
1) Turn ignition switch to OFF.





2) Connect Subaru Select Monitor to data link connector

3) Turn ignition switch to ON and Subaru Select Monitor switch to ON.

4) Operate the LED operation mode for engine using Subaru Select Monitor.

NOTE:
- Subaru Select Monitor. For detailed operation procedure, refer to the "LED OPERATION MODE FOR ENGINE".

CHECK: Does the LED of (Idle Switch Signal) come on?

YES: Go to step 10E3.

NO: Check throttle position sensor circuit.

NOTE: In this case, it is not necessary to inspect DTC P0106.

10E3: CHECK DATA FOR CONTROL.
1) Turn ignition switch to OFF.





2) Connect Subaru Select Monitor or the OBD-II general scan tool to data link connector.

3) Turn ignition switch ON and Subaru Select Monitor or the OBD-II general scan tool switch ON.

4) Start engine.

5) Read data of intake manifold absolute pressure signal using Subaru Select Monitor or OBD-II general scan tool.

NOTE:
- Subaru Select Monitor
For detailed operation procedure, Refer to the "READ CURRENT DATA SHOWN ON DISPLAY FOR ENGINE". Refer to Normal Scan Data Values.
- OBD-II general scan tool
For detailed operation procedure, Refer to the OBD-II General Scan Tool Instruction Manual.

CHECK: Is the value more than 85 kPa (638 mmHg, 25.12 inHg)?.

YES: Go to step 10E6.

NO: Go to step 10E4.

10E4: CHECK DATA FOR CONTROL.
Read data of atmospheric absolute pressure signal using Subaru Select Monitor or OBD-II general scan tool.

CHECK: Is the value less than 32 kPa (240 mmHg, 9.45 inHg)?

YES: Go to step 10E7.

NO: Go to step 10E5.

10E5: CHECK DATA FOR CONTROL.
Read data of atmospheric absolute pressure signal using Subaru Select Monitor or OBD-II general scan tool.

CHECK: Is the value more than 133 kPa (998 mmHg, 39.29 inHg)?

YES: Replace pressure sensor.

NO: Repair poor contact in pressure sensor connector, pressure sources switching solenoid valve connector, and ECM connector.

10E6: CHECK VACUUM HOSES.
Check the following items.
- Disconnection of the vacuum hose from pressure sources switching solenoid valve to intake manifold
- Holes in the vacuum hose between pressure sources switching solenoid valve to intake manifold
- Clogging of the vacuum hose between pressure sources switching solenoid valve to intake manifold
- Disconnection of the vacuum hose from pressure sensor to pressure sources switching solenoid valve
- Holes in the vacuum hose between pressure sensor and pressure sources switching solenoid valve
- Clogging of the vacuum hose between pressure sensor and pressure sources switching solenoid valve
- Clogging of the filter





CHECK: Is there a fault in vacuum hose?

YES: Repair or replace hoses or filter.

NO: Go to step 10E7.

10E7: CHECK PRESSURE SOURCES SWITCHING SOLENOID VALVE
1) Turn ignition switch to OFF.





2) Connect test mode connector.

3) Turn ignition switch to ON.

NOTE: Pressure sources switching solenoid valve operation check can also be executed using Subaru Select Monitor. For the procedure, refer to the "COMPULSORY VALVE OPERATION CHECK MODE".

CHECK: Does pressure sources switching solenoid valve produce rating sound? (ON <-> OFF each 1 sec.)

YES: Replace pressure sensor.

NO: Replace pressure sources switching solenoid valve.