P0341

AF: DTC P0341 - CAMSHAFT POSITION SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM

DTC DETECTING CONDITION:
- Immediately at fault recognition.

TROUBLE SYMPTOM:
- Engine stalls.
- Failure of engine to start.

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

10AF1: CHECK ANY OTHER DTC ON DISPLAY.

CHECK: Does the Subaru Select Monitor or OBD-II general scan tool indicate DTC P0340?

YES: Inspect DTC P0340 using "10. Diagnostics Chart with Trouble Code". P0340

NO: Go to step 10AF2.

10AF2: CHECK HARNESS BETWEEN CAMSHAFT POSITION SENSOR AND ECM CONNECTOR.
1. Turn ignition switch to OFF.
2. Disconnect connector from camshaft position sensor.

Connector & Terminal (E15) No.1 - Engine ground:

2. Disconnect connector from camshaft position sensor.
3. Measure resistance of harness between camshaft position sensor connector and engine ground.

CHECK: Is the resistance more than 100 Kohm?

YES: Repair harness and connector.

NOTE:
In this case, repair the following:
- Open circuit in harness between camshaft position sensor and ECM connector
- Poor contact in ECM connector
- Poor contact in coupling connector (B22)

NO: Go to step 10AE3.

10AF3: CHECK HARNESS BETWEEN CAMSHAFT POSITION SENSOR AND ECM CONNECTOR.

Connector & Terminal (E15) No.1 - Engine ground:

Measure resistance of harness between camshaft position sensor connector and engine ground.

CHECK: Is the resistance less than 10 ohms?

YES: Repair ground short circuit in harness between camshaft position sensor and ECM connector.

NOTE: The harness between both connectors are shielded. Repair ground short circuit in harness together with shield.

NO: Go to step 10AF4.

10AF4: CHECK HARNESS BETWEEN CAMSHAFT POSITION SENSOR AND ECM CONNECTOR.

Connector & Terminal (E15) No.2 - Engine ground:

Measure resistance of harness between camshaft position sensor connector and engine ground.

CHECK: Is the resistance less than 5 ohms?

YES: Go to step 10AF5.

NO: Repair harness and connector.

NOTE:
In this case, repair the following:
- Open circuit in harness between camshaft position sensor and ECM connector.
- Poor contact in ECM connector.
- Poor contact in coupling connector (B22).

10AF5: CHECK CONDITION OF CAMSHAFT POSITION SENSOR.

CHECK: IS the camshaft position sensor installation bolt tightened securely?

YES: Go to step 10AF6.

NO: Tighten camshaft position sensor installation bolt securely.

10AF6:CHECK CAMSHAFT POSITION SENSOR.
1. Remove camshaft position sensor.

Terminals No.1 - No.2:

2. Measure resistance between connector terminals of camshaft position sensor.

CHECK: Is the resistance between 1 and 4 Kohms?

YES: Go to step 10AF7.

NO: Replace camshaft position sensor.

10AF7: CHECK CAMSHAFT SPROCKET.
Remove front belt cover.

CHECK: Are camshaft sprocket teeth cracked or damaged?

YES: Replace camshaft sprocket.

NO: Go to step 10AF8.

10AF8: CHECK INSTALLATION CONDITION OF TIMING BELT.








Turn crankshaft using ST, and align alignmen mark on crankshaft sprocket. Then, make sure left and right camshaft sprockets are matched with notches (alignment marks of belt cover and cylinder head).

ST 499207100 CAMSHAFT SPROCKET WRENCH

CHECK: Is timing belt installed properly in accordance with the correct position of crankshaft and camshaft sprockets?

YES: Repair installation condition of timing belt.

NO: Replace camshaft position sensor.