Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc p0365 camshaft position sensor "b" circuit bank 1

Subaru Legacy BN/BS (2015-2019) Service Manual / Engine (diagnostics)(h6do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p0365 camshaft position sensor "b" circuit bank 1

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

• Engine stalls.

• Failure of engine to start

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mode > PROCEDURE.

WIRING DIAGRAM:

• Engine Electrical System ENGINE TYPE EZ (WITHOUT PUSH BUTTON START) Engine Electrical System > WIRING DIAGRAM

• Engine Electrical System ENGINE TYPE EZ (WITH PUSH BUTTON START) Engine Electrical System > WIRING DIAGRAM

STEP	CHECK	YES	NO
1.CHECK POWER SUPPLY OF CAMSHAFT POSITION SENSOR. 1) Turn the ignition switch to OFF. 2) Disconnect the connector from camshaft position sensor. 3) Turn the ignition switch to ON. 4) Measure the voltage between camshaft position sensor connector and engine ground. Connector & terminal (E62) No. 1 (+) — Engine ground (−):	Is the voltage 10 V or more-	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT BANK 1	Repair the power supply circuit. NOTE: In this case, repair the following item: • Open circuit or short circuit to ground in harness between main relay connector and camshaft position sensor connector • Blown out of fuse (M/B No. 21)
2.CHECK HARNESS BETWEEN ECM AND CAMSHAFT POSITION SENSOR CONNECTOR. 1) Turn the ignition switch to OFF. 2) Disconnect the connector from ECM. 3) Measure the resistance between ECM connector and camshaft position sensor connector. Connector & terminal (E158) No. 2 — (E62) No. 2: (E158) No. 42 — (E62) No. 3:	Is the resistance less than 1 --	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT BANK 1	Repair the open circuit in the harness between the ECM connector and camshaft position sensor connector.
3.CHECK HARNESS BETWEEN ECM AND CAMSHAFT POSITION SENSOR CONNECTOR. Measure the resistance between camshaft position sensor connector and engine ground. Connector & terminal (E62) No. 2 — Engine ground:	Is the resistance 1 M- or more-	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT BANK 1	Repair short circuit to ground in harness between ECM connector and camshaft position sensor connector.
4.CHECK HARNESS BETWEEN ECM AND CAMSHAFT POSITION SENSOR CONNECTOR. Measure the voltage between camshaft position sensor connector and engine ground. Connector & terminal (E62) No. 2 (+) — Engine ground (−):	Is the voltage 5 V or more-	Repair the short circuit to power in the harness between ECM connector and camshaft position sensor connector.	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT BANK 1
5.CHECK CONDITION OF CAMSHAFT POSITION SENSOR.	Is the camshaft position sensor installation bolt tightened securely-	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT BANK 1	Tighten the camshaft position sensor installation bolt securely. Camshaft Position Sensor > INSTALLATION
6.CHECK CAMSHAFT POSITION SENSOR. Check the waveform of the camshaft position sensor. Engine Control Module (ECM) I/O Signal	Is there any abnormality in waveform-	Replace the camshaft position sensor. Camshaft Position Sensor	Repair the following item. • Poor contact of ECM connector • Poor contact of camshaft position sensor connector

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of the camshaft position sensor.

When there is no camshaft position signal input continuously, judge as NG.

2. COMPONENT DESCRIPTION

(A)

Camshaft signal (RH)

(B)

Camshaft signal (LH)

(C)

Crankshaft signal

(1)	Slot	(3)	Detecting point	(4)	Camshaft one revolution (crankshaft two revolutions)
(2)	Camshaft plate

3. EXECUTION CONDITION

Secondary Parameters	Execution condition
Battery voltage	≥ 10.9 V
Elapsed time after starting the engine	≥ 200 ms

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

Judge as NG if there is no input signal from the camshaft position sensor for (16 time(s) +2)/3 revs.

Judgment Value

Malfunction Criteria	Threshold Value
Amount of camshaft sensor signal during 0.33 revs of crankshaft	= 0

Time Needed for Diagnosis: (16 time(s) +2)/3 engine revs.

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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