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Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b1832 short in curtain airbag rh squib circuit (to ground)

Subaru Legacy BN/BS (2015-2019) Service Manual / Airbag system (diagnostics) / Diagnostic chart with trouble code / Dtc b1832 short in curtain airbag rh squib circuit (to ground)

DIAGNOSIS START CONDITION:

Ignition voltage is 10 V to 16 V.

DTC DETECTING CONDITION:

GND short circuit failure (shorted to ground in main harness, shorted to ground in curtain airbag RH, shorted to ground in airbag CM internal circuit)

CAUTION:

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

WIRING DIAGRAM:

NOTE:

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

Airbag system Airbag System > WIRING DIAGRAM

STEPCHECKYESNO

1.CHECK POOR CONTACT OF CONNECTORS.

Check for poor contact of the connectors between the airbag control module, curtain airbag module RH and the curtain airbag sensor RH.

Is there poor contact-

Replace the airbag rear harness along with body harness.

Diagnostic Chart with Trouble Code > DTC B1832 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO GROUND)

2.CHECK CURTAIN AIRBAG MODULE.

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

2) Disconnect the connector (AB33), and connect the connector (1N) in test harness N to connector (AB33).

3) Connect the airbag resistor to the connector (2N) of test harness N.

4) Connect the battery ground terminal and turn the ignition switch to ON.

Does the airbag warning light illuminate for six seconds and go off-

Replace the curtain airbag module RH. Curtain Airbag Module

Diagnostic Chart with Trouble Code > DTC B1832 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO GROUND)

3.CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS RH) (SHORTED TO GROUND).

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

2) Disconnect the connector (AB26) from seat belt pretensioner RH.

3) Disconnect the connector (AB22) from seat cushion airbag module RH.

4) Disconnect the connector (AB24) from side airbag module RH.

5) Disconnect the airbag resistor from test harness N.

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

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

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

9) Measure the resistance between connector (2N) in the test harness N and chassis ground.

Connector & terminal

(2N) No. 1 — Chassis ground:

(2N) No. 2 — Chassis ground:

Is the resistance 1 M- or more-

Diagnostic Chart with Trouble Code > DTC B1832 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO GROUND)

Replace the airbag rear harness along with body harness.

4.CHECK AIRBAG CONTROL MODULE.

1) Connect all connectors.

2) Clear the memory. Clear Memory Mode

3) Perform the Inspection Mode. Inspection Mode

4) Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC)

Is DTC B1832 displayed-

Replace the airbag control module. Airbag Control Module

Diagnostic Chart with Trouble Code > DTC B1832 SHORT IN CURTAIN AIRBAG RH SQUIB CIRCUIT (TO GROUND)

5.CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC)

Is any other DTC displayed-

Check DTC using “List of Diagnostic Trouble Code (DTC)”. List of Diagnostic Trouble Code (DTC)

Finish the diagnosis.

Dtc b1833 short in curtain shield airbag rh squib circuit (to +b)
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Short circuit failure in power supply (shorted in main harness power supply, shorted in curtain airbag RH power suppl ...

Dtc b1831 open in curtain airbag rh squib circuit
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 curtain airbag RH, open circuit in airbag CM inte ...

Other materials:

Installation
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