Subaru Crosstrek Service Manual: Dtc b1830 short 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 shorted.

• 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 B1830 SHORT 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 B1830 SHORT 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) terminals in test harness AG.

Connector & terminal

(6AG) No. 6 — (6AG) No. 8:

Is the resistance 1 M? or more?

Diagnostic Chart with Trouble Code > DTC B1830 SHORT 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 B1830 displayed?

Replace the airbag control module. Airbag Control Module">

Diagnostic Chart with Trouble Code > DTC B1830 SHORT 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 b1828 short in side airbag lh (to +b)

Dtc b1831 open in curtain airbag rh squib circuit

Other materials:

Power seat
Driver's seat Seat position forward/backward control switch In the Subaru Ascent, move the control switch forward or backward to adjust the seat position. During this adjustment, the seat cushion angle and height remain fixed, ensuring stable movement along the track. Seat cush ...

Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C. Those grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. WARNIN ...

Tire inspection
Perform a visual inspection of the tires on your Subaru Ascent on a daily basis to ensure they are free from serious damage, embedded nails, stones, or other foreign objects. At the same time, carefully examine the tread surface for any signs of uneven or abnormal wear, which may indicate unde ...