Subaru Crosstrek Service Manual: Dtc b19f0 short in front p/t 2 rh

Diagnosis start condition:

Ignition voltage is 10 V to 16 V.

DTC detecting condition:

• Lap seat belt pretensioner (RH) circuit is shorted.

• Lap seat belt pretensioner (RH) is faulty.

• Lap seat belt pretensioner harness (RH) is shorted.

• 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 and the lap seat belt pretensioner (RH).

Is there poor contact?

Replace the airbag rear harness along with body harness.

Diagnostic Chart with Trouble Code > DTC B19F0 SHORT IN FRONT P/T 2 RH">Go to Step 2.

2.CHECK LAP SEAT BELT PRETENSIONER.

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

2) Disconnect the connector (AB30) from lap seat belt pretensioner (RH).

3) Connect the connector (1N) in the test harness N to the connector (AB30).

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 lap seat belt pretensioner (RH). Front Seat Belt > REMOVAL">

Diagnostic Chart with Trouble Code > DTC B19F0 SHORT IN FRONT P/T 2 RH">Go to Step 3.

3.CHECK AIRBAG REAR HARNESS (LAP SEAT BELT PRETENSIONER HARNESS RH).

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

2) Disconnect the airbag resistor from test harness N.

3) Disconnect the connector (AB33) from curtain airbag module (RH).

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

5) Disconnect the connector (AB26) from seat belt pretensioner.

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

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

8) Measure the resistance between connector (3AG) terminals in test harness AG.

Connector & terminal

(3AG) No. 17 — (3AG) No. 19:

Is the resistance less than 10 ??

Diagnostic Chart with Trouble Code > DTC B19F0 SHORT IN FRONT P/T 2 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 B19F0 displayed?

Replace the airbag control module. Airbag Control Module">

Diagnostic Chart with Trouble Code > DTC B19F0 SHORT IN FRONT P/T 2 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 b19f1 open in front p/t 2 rh

Dtc b1908 short in front p/t lh (to +b)

Other materials:

Preparation tool
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > General DescriptionPREPARATION TOOL1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS18769AA010EXPANDER PULLEYUsed for removing and installing the secondary pulley assembly.18767AA010BEARING REMOVERUsed for removing the ball bearing of transfer cl ...

Bulkhead wiring harness (in compartment) Location
WIRING SYSTEM > Bulkhead Wiring Harness (In Compartment)LOCATIONConnectorConnecting toNo.PoleColorAreaNo.DescriptionB274B-4 Blower Resistor (manual A/C)B308BlackC-5 Front door cord RHB3110GrayC-1AB1Airbag wiring harnessB328B-2 Turn signal and hazard unitB4016BlackC-1 Data link connectorB412C-2 Po ...

Removal
MANUAL TRANSMISSION AND DIFFERENTIAL(5MT) > Drive Pinion Shaft AssemblyREMOVAL1. Remove the manual transmission assembly from the vehicle. Manual Transmission Assembly > REMOVAL">2. Remove the transfer case together with the extension case assembly. Transfer Case and Extension Case A ...