Honda Civic manuals

Subaru Legacy Service Manual: Dtc b1819 short in passenger's airbag dual stage - 2nd step

Subaru Legacy Service Manual / Airbag system (diagnostics) / Diagnostic chart with trouble code / Dtc b1819 short in passenger's airbag dual stage - 2nd step

DIAGNOSIS START CONDITION:

Ignition voltage is 10 V to 16 V.

DTC DETECTING CONDITION:

Short circuit between passenger’s airbag circuit and other circuit

CAUTION:

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

NOTE:

Prior to starting work, prepare two AIRBAG RESISTORs (98299PA040).

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 passenger’s airbag module.

Is there poor contact-

Replace the airbag main harness.

Diagnostic Chart with Trouble Code > DTC B1819 SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP

2.CHECK AIRBAG MAIN HARNESS (PASSENGER’S AIRBAG HARNESS) (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 connectors (AB7) and (AB2).

3) Disconnect the passenger’s airbag module connector (AB9).

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

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

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

7) Using a probe, measure the resistance between the connector (AB9) and terminals of all connectors in test harness AG. General Description > PREPARATION TOOL

CAUTION:

When measuring the voltage, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — All terminals in test harness AG (except for (3AG) No. 8):

(AB9) No. 4 — All terminals in test harness AG (except for (3AG) No. 6):

Is the resistance 1 M- or more-

Diagnostic Chart with Trouble Code > DTC B1819 SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP

Replace the airbag main harness along with body harness.

3.CHECK AIRBAG CONTROL MODULE.

1) Connect the connector other than passenger’s airbag module connector (AB9).

2) Using a probe, short the terminals No. 3 and No. 4 of connector (AB9). General Description > PREPARATION TOOL

CAUTION:

When shorting the terminals, make sure that the probe is inserted from the back side (harness side) of the connector. Also, do not insert the probe forcibly.

Connector & terminal

(AB9) No. 3 — (AB9) No. 4:

3) Connect the battery ground terminal and turn the ignition switch to ON.

4) Clear the memory. Clear Memory Mode

5) Perform the Inspection Mode. Inspection Mode

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

Is DTC B1815 displayed-

Diagnostic Chart with Trouble Code > DTC B1819 SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP

Replace the airbag control module. Airbag Control Module > REMOVAL

4.CHECK PASSENGER’S AIRBAG MODULE.

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

2) Connect the passenger’s airbag module connector (AB9).

3) Connect the battery ground terminal and turn the ignition switch to ON.

4) Clear the memory. Clear Memory Mode

5) Perform the Inspection Mode. Inspection Mode

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

Is DTC B1819 displayed-

Replace the passenger’s airbag module. Passenger’s Airbag Module > REMOVAL

Diagnostic Chart with Trouble Code > DTC B1819 SHORT IN PASSENGER'S AIRBAG DUAL STAGE - 2ND STEP

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 b1824 short in side airbag rh
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Short circuit between front seat side airbag RH circuit and other circuitCAUTION:Before performing diagnosis, refer t ...

Dtc b1814 short in driver's airbag dual stage - 2nd step
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Short circuit between driver’s airbag circuit and other circuitCAUTION:Before performing diagnosis, refer to &l ...

Other materials:

Electrical component location location
1. CONTROL MODULE(1)TCM (engine type FB)(3)AT OIL TEMP light(4)AWD light(2)TCM (engine type EZ) 2. SENSOR• ENGINE TYPE FB(1)Secondary speed sensor(3)Primary speed sensor(5)Inhibitor switch(2)Turbine speed sensor(4)Secondary pressure sensor • ENGINE TYPE EZ(1)Secondary speed sensor(3) ...

© 2017-2019 Copyright www.sulegacy.com