Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Dtc b1821 open in side airbag rh

AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble Code

DTC B1821 OPEN IN SIDE AIRBAG RH

Diagnosis start condition:

Ignition voltage is 10 V to 16 V.

DTC detecting condition:

Side airbag harness (RH) circuit is open.

Side airbag module (RH) is faulty.

Airbag control module is faulty.

CAUTION:

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

Wiring diagram:

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, 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 B1821 OPEN IN SIDE AIRBAG RH">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) from the side airbag module (RH), and connect the connector (1AJ) in the 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 6 seconds and go off?

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

Diagnostic Chart with Trouble Code > DTC B1821 OPEN IN SIDE AIRBAG RH">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 in the test harness AG and connector in the test harness AJ.

Connector & terminal

(5AG) No. 5 — (3AJ) No. 1:
(5AG) No. 7 — (3AJ) No. 2:

Is the resistance less than 10 ??

Diagnostic Chart with Trouble Code > DTC B1821 OPEN IN SIDE AIRBAG RH">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 B1821 displayed?

Replace the airbag control module. Airbag Control Module">

Diagnostic Chart with Trouble Code > DTC B1821 OPEN IN SIDE AIRBAG RH">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 b1820 short in side airbag rh
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1820 SHORT IN SIDE AIRBAG RHDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Side airb ...

Dtc b1822 short in side airbag rh (to ground)
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1822 SHORT IN SIDE AIRBAG RH (TO GROUND)Diagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:&bull ...

Other materials:

Starting the engine
NOTE All vehicle doors (including rear gate) and the engine hood must be closed prior to activating the remote engine start system. Any open entry point will prevent starting or cause the engine to stop. The remote engine start system is activated by pressing the fob button on your remote e ...

Removal
MECHANICAL(H4DO) > Rocker CoverREMOVAL1. ROCKER COVER RHNOTE:When replacing a single part, perform the work with the engine assembly installed to body.1. When working on the vehicleNOTE:When working on the vehicle, perform the following steps also.(1) Remove the air cleaner case. Air Cleaner Cas ...

Dtc p0123 throttle/pedal position sensor/switch "a" circuit high
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGHDTC detecting condition:Immediately at fault recognitionTrouble symptom:• Improper idling• Engine stall• Poor driving per ...

© 2016-2023 Copyright www.sucross.com