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

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h4do) / Main relay / Inspection

1. Check that the main relay has no deformation, cracks or other damages.

2. Measure the resistance between main relay terminals.

Terminal No.	Standard
1 and 3	1 M- or more
2 and 4	80.55 — 98.45 - (when 20°C (68°F))

3. Connect battery positive terminal to terminal No. 2 and battery ground terminal to terminal No. 4, and measure the resistance between the main relay terminals.

Terminal No.	Standard
1 and 3	Less than 1 -

Removal

1. Disconnect the ground terminal from battery sensor. NOTE2. Remove the main relay from main fuse box. ...

Installation

1. Install the main relay to the main fuse box.2. Connect the ground terminal to battery sensor. NOTE ...

Other materials:

Inspection mode operation
It is possible to diagnose the DTC by performing the indicated inspection mode. After correcting the DTC, perform a necessary inspection mode and make sure that the function is resumed correctly and the DTC is recorded.1. INSPECTION MODE 1DTCItemNoteU0073CAN FAILURE, BUS ‘OFF’ DETECTION ...