Subaru Crosstrek Service Manual: Dtc b1822 short in side airbag rh (to ground)

Diagnosis start condition:

Ignition voltage is 10 V to 16 V.

DTC detecting condition:

• Side airbag harness (RH) circuit is shorted to ground.

• Side 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, side airbag module RH and the side airbag sensor RH.

Is there poor contact?

Replace the airbag rear harness along with body harness.

Diagnostic Chart with Trouble Code > DTC B1822 SHORT IN SIDE AIRBAG RH (TO GROUND)">Go to Step 2.

2.CHECK SIDE 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 (AB24), and connect the connector (1AJ) in test harness AJ to connector (AB24).

3) Connect the airbag resistor to the test harness AJ connector (3AJ).

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 side airbag module (RH). Side Airbag Module > REMOVAL">

Diagnostic Chart with Trouble Code > DTC B1822 SHORT IN SIDE AIRBAG RH (TO GROUND)">Go to Step 3.

3.CHECK AIRBAG REAR HARNESS (SIDE 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 the connector (AB33) from curtain airbag module (RH).

4) Disconnect the airbag resistor from test harness AJ.

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 (5AG) in the test harness AG and chassis ground.

Connector & terminal

(5AG) No. 5 — Chassis ground:

(5AG) No. 7 — Chassis ground:

Is the resistance 1 M? or more?

Diagnostic Chart with Trouble Code > DTC B1822 SHORT IN SIDE AIRBAG RH (TO GROUND)">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 B1822 displayed?

Replace the airbag control module. Airbag Control Module">

Diagnostic Chart with Trouble Code > DTC B1822 SHORT IN SIDE AIRBAG RH (TO GROUND)">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 b1821 open in side airbag rh

Dtc b1823 short in side airbag rh (to +b)

Other materials:

During driving
General precautions: Drive carefully. Do not take unnecessary risks by driving in dangerous areas or over rough terrain. Slow down and employ extra caution at all times. When driving off-road, you will not have the benefit of marked traffic lanes, banked curves, traffic signs and t ...

Dtc b1633 curtain airbag sensor rh initialization error
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1633 CURTAIN AIRBAG SENSOR RH INITIALIZATION ERRORDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Open or short circuit in harness of side sensor bus (RH)• Side airbag sensor (RH) ...

Inspection
EyeSight (DIAGNOSTICS) > Subaru Select MonitorINSPECTION1. COMMUNICATION FOR INITIALIZING IMPOSSIBLE• Communication error with stereo cameraDETECTING CONDITION:• Defective harness connector• Power supply circuit malfunction• Defective stereo camera• Defective CAN sys ...