P1112

DTC P1112 - ATMOSPHERIC 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. Clear Memory Mode




WIRING DIAGRAM

10BR1: 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 P0106, P0107, P0108, P1110 or P1111?

YES: Inspect DTC P0106, P0107, P0108, P1110 or P1111 using "10. Diagnostics Chart with Trouble Codes". P0106 P0107 P0108 P1110 P1111

NO: Go to step 10BR2.

10BR2: CHECK ATMOSPHERIC PRESSURE SENSOR FILTER
1. Turn ignition switch to OFF.
2. Disconnect connector from atmospheric pressure sensor.
3. Remove atmospheric pressure sensor.
4. Check atmospheric pressure sensor filter.

CHECK: Is atmospheric pressure sensor filter non-functional? (Check for contamination, damage, water leakage, etc.)

YES: Replace atmospheric pressure sensor filter.

NO: Go to step 10BR3.

10BR3: CHECK CURRENT DATA.
1. Turn ignition switch to ON.
2. 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 procedures, Refer to the OBD-II General Scan Tool Instruction Manual.

CHECK: Is the value between 73.3 kPa (550 mmHg, 21.65 inHg) and 106.6 kPa (800 mmHg, 31.50 inHg)?

YES: Replace atmospheric pressure sensor.

NO: Replace intake air temperature and pressure.