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

Subaru Legacy BN/BS (2015-2019) Service Manual / Occupant detection system (diagnostics) / Subaru select monitor / Inspection

1. COMMUNICATION FOR INITIALIZING THE AIRBAG SYSTEM IS IMPOSSIBLE

DETECTING CONDITION:

Defective harness connector

TROUBLE SYMPTOM:

Communication is impossible between the airbag control module and the Subaru Select Monitor.

NOTE:

Refer to “Communication for Initializing Impossible” in AIRBAG SYSTEM (DIAGNOSTICS). Subaru Select Monitor > INSPECTION

2. COMMUNICATION FOR INITIALIZING ONLY THE OCCUPANT DETECTION SYSTEM IS IMPOSSIBLE

NOTE:

The occupant detection system communicates with the Subaru Select Monitor via the airbag control module.

DETECTING CONDITION:

Defective harness connector between airbag control module and occupant detection control module

TROUBLE SYMPTOM:

Communication is impossible between the airbag control module and the occupant detection control module.

CAUTION:

Before performing diagnosis, refer to “CAUTION” in “General Description”. General Description > CAUTION

WIRING DIAGRAM:

NOTE:

For the coupling connector, refer to “WIRING SYSTEM”.

Occupant detection system Occupant Detection System > WIRING DIAGRAM

STEPCHECKYESNO

1.CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the occupant detection control module and airbag control module.

Is there poor contact-

When the connector is not fully connected, reconnect the connector correctly. Replace the faulty harness if the connector is faulty. (Replace the airbag rear harness along with body harness. Or replace the occupant detection harness (seat harness).)

Subaru Select Monitor > INSPECTION

2.CHECK AIRBAG REAR HARNESS.

1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more.

2) Disconnect the connectors (AB59) and (AB53) under the passenger’s seat.

3) Disconnect the connectors (AB6, AB17, AB18) from airbag control module.

4) Connect the connector (1AD) in test harness AD AV to the connectors (AB6, AB17, AB18).

5) Connect the connector (2AD) in test harness AD AV and the connector (1AG) in test harness AG.

6) Measure the resistance between connector (6AG) in the test harness AG and connector (AB53).

CAUTION:

Connect terminal (1AW) in the test harness AW to connector (AB53) terminal, and apply the tester to terminal (2AW).

Connector & terminal

(6AG) No. 10 — (AB53) No. 5:
(6AG) No. 12 — (AB53) No. 4:

Is the resistance less than 10 --

Subaru Select Monitor > INSPECTION

Replace the airbag rear harness along with body harness.

3.CHECK AIRBAG REAR HARNESS.

Measure the resistance between connector (6AG) in the test harness AG and chassis ground.

Connector & terminal

(6AG) No. 10 — Chassis ground:
(6AG) No. 12 — Chassis ground:
(6AG) No. 10 — (6AG) No. 12:

Is the resistance 1 M- or more-

Subaru Select Monitor > INSPECTION

Replace the airbag rear harness along with body harness.

4.CHECK OCCUPANT DETECTION HARNESS.

1) Turn the ignition switch to ON.

2) Measure the voltage between connector (AB53) and chassis ground.

CAUTION:

Connect terminal (1AW) in the test harness AW to connector (AB53) terminal, and apply the tester to terminal (2AW).

Connector & terminal

(AB53) No. 6 (+) — Chassis ground (−):

Is the voltage 10 V or more-

Replace the occupant detection harness (seat harness). If defective is not improved, replace the occupant detection system (seat cushion & frame assembly), and then the airbag control module in this order. Front Seat > DISASSEMBLY

Check the battery voltage and fuse. If there is no fault, replace the airbag rear harness together with body harness.

Operation
For detailed operation procedures, refer to “Application help”. ...

Parking brake
...

Other materials:

Assembly
1. Clean the holes in the sliding surface between the clutch pedal and bushing, and apply grease.2. Attach the clutch pedal pad, clutch pedal stopper, bushing A, torsion spring bushing, spacer and bushing to the clutch pedal.NOTE:Clean the inside of the bushings and apply grease before installing th ...

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