Honda Civic manuals

Subaru Legacy Service Manual: Dtc b1909 short in front p/t lh

DIAGNOSIS START CONDITION:

Ignition voltage is 10 V to 16 V.

DTC DETECTING CONDITION:

Short circuit between front seat pretensioner LH circuit and other circuit

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 and the seat belt pretensioner LH.

Is there poor contact-

Replace the airbag rear harness along with body harness.

Diagnostic Chart with Trouble Code > DTC B1909 SHORT IN FRONT P/T LH

2.CHECK 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 (AB21) from seat belt pretensioner LH.

3) Connect the connector (1N) in the test harness N to the connector (AB21).

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 six seconds and go off-

Replace the seat belt pretensioner LH. Front Seat Belt

Diagnostic Chart with Trouble Code > DTC B1909 SHORT IN FRONT P/T LH

3.CHECK AIRBAG REAR HARNESS (PRETENSIONER HARNESS LH) (SHORTED BETWEEN LINES).

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 the connector (2N) of test harness N.

3) Disconnect the connector (AB5) from seat cushion airbag module LH.

4) Disconnect the connector (AB19) from side airbag module LH.

5) Disconnect the connector (AB31) from curtain airbag module LH.

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

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

8) Connect the connector (2AD) in test harness AD AV and the connector (1AG) in test harness AG.

9) Measure the resistance between connector (3AG) in the test harness AG and all connector terminals in the test harness AG.

Connector & terminal

(3AG) No. 18 — All terminals in test harness AG:

(3AG) No. 20 — All terminals in test harness AG:

Is the resistance 1 M- or more-

Diagnostic Chart with Trouble Code > DTC B1909 SHORT IN FRONT P/T LH

Replace the faulty harness. (Replace the airbag main harness along with body harness. Or 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 B1909 displayed-

Replace the airbag control module. Airbag Control Module

Diagnostic Chart with Trouble Code > DTC B1909 SHORT IN FRONT P/T LH

5.CHECK FOR ANY OTHER DTC ON DISPLAY.

Read the DTC. (Current malfunction) Read Diagnostic Trouble Code (DTC)

Is any other DTC displayed-

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

Finish the diagnosis.

Dtc b1005 airbag ecu malfunction
NOTE:Refer to DTC B1105 for details on DTC B1000. Diagnostic Chart with Trouble Code > DTC B1000 AIRBAG ECU MALFUNCTION ...

Dtc b1904 short in front p/t rh
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Short circuit between front seat pretensioner RH circuit and other circuitCAUTION:Before performing diagnosis, refer ...

Other materials:

Jump starting
WARNING  Battery fluid is SULFURIC ACID. Do not let it come in contact with the eyes, skin, clothing or the vehicle. If battery fluid gets on you, thoroughly flush the exposed area with water immediately. Get medical help if the fluid has entered your ...

© 2017-2019 Copyright www.sulegacy.com