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

Subaru Legacy BN/BS (2015-2019) Service Manual / Security and locks / Relay and fuse / Inspection

1. CHECK FUSE

1. Remove the fuse and inspect visually.

2. If the fuse is blown out, replace the fuse.

NOTE:

If the fuse is blown again, check the system wiring harness.

2. CHECK RELAY

1. Measure the resistance between relay terminals.

Terminal No.	Inspection conditions	Standard	Circuit
1 — 2	Always	1 M- or more
1 — 2	Apply battery voltage between terminals 4 and 3.	Less than 1 -

Terminal No.	Inspection conditions	Standard	Circuit
1 — 4	Always	1 M- or more
1 — 4	Apply battery voltage between terminals 2 and 3.	Less than 1 -

Terminal No.	Inspection conditions	Standard	Circuit
1 — 2	Always	1 M- or more
1 — 4	Always	Less than 1 -
1 — 2	Apply battery voltage between terminals 3 and 5.	Less than 1 -

2. Replace the relay if the inspection result is not within the standard value.

Location

Main fuse box (M/B)Fuse 15 A (body integrated unit)(A)Fuse 15 A (body integrated unit)(B)Fuse & relay box (F/B)Fuse 10 A (body integrated unit, immobilizer antenna)(C)Fuse 7.5 A (keyless access CM)(D) ...

Remote openers

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Other materials:

Dtc b1821 open in side airbag rh
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Open circuit failure (open circuit in main harness, open circuit in front seat side airbag RH, open circuit in airbag CM internal circuit, connector connection failure)NOTE:Before starting work, prepare two sets of TE ...