Subaru Legacy BN/BS (2015-2019) Service Manual: Inspection

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h6do) / Camshaft position sensor / Inspection

1. CAMSHAFT POSITION SENSOR

1. Disconnect the ground terminal from battery sensor. NOTE

2. Prepare an oscilloscope.

3. While pressing the section (A) shown in the figure, move the lock lever (B) in the direction of the arrow to disconnect the connectors from the ECM in numerical order as shown in the figure.

4. Attach the ST between the ECM, engine harness and the bulkhead wiring harness. General Description > CAUTION

ST 18460AA050

CHECK BOARD

5. Connect the probe to ST.

• Intake camshaft position sensor

(A)

To the check board connector (ECM connector)

• Exhaust camshaft position sensor

(A)

To the check board connector (ECM connector)

Camshaft position sensor		Terminal No.	Probe
Intake	RH	54	+
Intake	LH	41	+
Exhaust	RH	2	+
Exhaust	LH	55	+
RH and LH		42	−

6. Start the engine and let it idle.

7. Check the waveforms and voltage.

NOTE:

For waveform and voltage, refer to “Engine Control Module (ECM) I/O Signal”. Engine Control Module (ECM) I/O Signal > ELECTRICAL SPECIFICATION

8. After inspection, install the related parts in the reverse order of removal.

2. OTHER INSPECTIONS

Check that the camshaft position sensor has no deformation, cracks or other damages.

Removal

1. INTAKE SIDE1. Remove the collector cover.(1) Carefully pull up the rear of collector cover at two positions (A).(2) Carefully pull up the front of collector cover at two positions (B) while moving ...

Installation

1. INTAKE SIDE1. Install the camshaft position sensor, and connect the connector to the camshaft position sensor.Tightening torque:6.4 N·m (0.7 kgf-m, 4.7 ft-lb)2. Install the fuel injector. F ...

Other materials:

HID headlights (if equipped)
WARNING High-intensity-discharge (HID) bulbs are used for the low beams of the headlights. These HID bulbs use an extremely high voltage. To avoid the risk of an electric shock that could result in serious injury, observe the following precautions. Do not replace a ...