Subaru Crosstrek Service Manual: Dtc b1831 open in curtain airbag rh squib circuit

Diagnosis start condition:

Ignition voltage is 10 V to 16 V.

DTC detecting condition:

• Curtain airbag harness (RH) circuit is open.

• Curtain airbag module (RH) is faulty.

• Airbag control module is faulty.

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

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 B1831 OPEN IN CURTAIN AIRBAG RH SQUIB CIRCUIT">Go to Step 2.

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) from curtain airbag module (RH).

3) Connect the connector (1N) in the test harness N to the connector (AB33).

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

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

Does the airbag warning light illuminate for 6 seconds and go off?

Replace the curtain airbag module (RH). Curtain Airbag Module">

Diagnostic Chart with Trouble Code > DTC B1831 OPEN IN CURTAIN AIRBAG RH SQUIB CIRCUIT">Go to Step 3.

3.CHECK AIRBAG REAR HARNESS (CURTAIN AIRBAG MODULE HARNESS RH).

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 connector (AB24) from side airbag module (RH).

4) Disconnect the airbag resistor from test harness N.

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

6) Connect the connector (1AG) in the test harness AG to the connectors (AB6, AB17, AB18).

7) Measure the resistance between connector (6AG) in the test harness AG and connector (2N) in the test harness N.

Connector & terminal

(6AG) No. 8 — (2N) No. 2:
(6AG) No. 6 — (2N) No. 1:

Is the resistance less than 10 ??

Diagnostic Chart with Trouble Code > DTC B1831 OPEN IN CURTAIN AIRBAG RH SQUIB CIRCUIT">Go to Step 4.

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 B1831 displayed?

Replace the airbag control module. Airbag Control Module">

Diagnostic Chart with Trouble Code > DTC B1831 OPEN IN CURTAIN AIRBAG RH SQUIB CIRCUIT">Go to Step 5.

5.CHECK FOR ANY OTHER DTC ON DISPLAY.

Is any other DTC displayed?

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

Finish the diagnosis.

Dtc b1830 short in curtain airbag rh squib circuit

Dtc b1832 short in curtain airbag rh squib circuit (to ground)

Other materials:

Caution
DRIVE SHAFT SYSTEM > General DescriptionCAUTION• When performing any work, always wear work clothes, a work cap and protective shoes. Additionally, wear a helmet, protective goggles, etc. if necessary.• Remove contamination including dirt and corrosion before removal, installation, di ...

Dtc b2301 rear radar circuit high
Blind Spot Detection/Rear Cross Traffic Alert (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B2301 REAR RADAR CIRCUIT HIGHDTC detecting condition:• Open circuit or short circuit to power supply in harness between radar sensor and outer mirror assembly.• Ope ...

ECO gauge (if equipped)
U.S.-spec. models Except U.S.-spec. models The ECO gauge shows the difference between the current rate of fuel consumption and the average rate of fuel consumption since the trip meter was last reset. If the needle of the gauge moves towards the right side, this indicates better f ...