P0132

DTC P0132 - FRONT OXYGEN (A/F) SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT)

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.

Wiring Diagram:

WIRING DIAGRAM

10O1: CHECK ANY OTHER DTC ON DISPLAY.

CHECK: Does the Subaru Select Monitor or OBD-II general scan tool indicate DTC P1130, P1131, P1132, P1133 or P1134?

YES: Inspect DTC P1130, P1131, P1132, P1133 or P1134 using "10. Diagnostics Chart with Trouble Code for MT Vehicles".

NO: Go to step 1002.

10O2: CHECK FRONT (A/F) OXYGEN SENSOR DATA.

1. Start engine.
2. While observing the Subaru Select Monitor or OBD-II general scan tool screen, warm-up the engine until coolant temperature is above 70 °C (158 °F).
If the engine is already warmed-up, operate at idle speed for at least 1 minute.
3. Read data of front oxygen (A/F) sensor 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 equal to or more than 0.85 and equal to less than 1.15 in idling?

YES: Go to step 10O3.

NO: Go to step 10O4.

10O3: CHECK REAR OXYGEN SENSOR SIGNAL.

1. Race engine at speeds from idling to 5,000 rpm for a total of 5 cycles.

NOTE: To increase engine speed to 5,000 rpm, slowly depress accelerator pedal, taking approximately 5 seconds, and quickly release accelerator pedal to decrease engine speed.

2. Operate the LED operation mode for engine.

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

CHECK: Does the LED of (Rear O2 Rich Signal) blink?

YES: Repair poor contact in front oxygen (A/F) sensor and rear oxygen sensor connector.

NO: Check rear oxygen sensor circuit.

110O4: CHECK EXHAUST SYSTEM.
Check exhaust system parts.

NOTE: Check the following items.
- Loose installation of portions
- Damage (crack, hole etc.) of parts
- Looseness of front oxygen (A/F) sensor
- Looseness and ill fitting of parts between from oxygen (A/F) sensor and rear oxygen sensor

CHECK: Is there a fault in exhaust system?

YES: Repair or replace faulty parts.

NO: Replace front oxygen (A/F) sensor.