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

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h6do) / Fuel pump relay / Inspection

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

2. Measure the resistance between fuel pump relay terminals.

Terminal No.	Standard
1 and 2	1 M- or more
3 and 4	130.4 — 230.8 - (when 20°C (68°F))

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

Terminal No.	Standard
1 and 2	Less than 1 -

Removal

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

Installation

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

Other materials:

Communication for initializing impossible
1. ECMIf the communication with ECM is not possible, refer to ENGINE (DIAGNOSTICS). Basic Diagnostic Procedure > PROCEDURE Basic Diagnostic Procedure > PROCEDURE2. BODY INTEGRATED UNITIf the communication with the body integrated unit is not possible, refer to BODY CONTROL SYSTEM (DIAGNOSTICS). B ...