DTC B1806 Open In Passenger's Airbag: Wiring Diagram

See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: Airbag System - Wiring Diagram (Open In Passenger's Airbag)

G08584203

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
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 harness.	Go to step 2 .
2 CHECK PASSENGER'S AIRBAG MODULE. Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. Remove the console front panel and disconnect the connector (AB9). Connect the connector (1P) in the test harness P to connector (AB9). Connect the airbag resistor to the connectors (2P) and (3P) of test harness P. 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 passenger's airbag module. Refer to PASSENGER'S AIRBAG MODULE .	Go to step 3 .
3 CHECK AIRBAG MAIN HARNESS (PASSENGER'S AIRBAG HARNESS). Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more. Disconnect the airbag resistor from the connectors (2P) and (3P) of test harness P. Remove the instrument panel lower cover and column cover, and disconnect the connector (AB7) from (AB2). Disconnect the connectors (AB6, AB17, AB18) from the airbag control module, and connect the connector (1AG) in the test harness AG. NOTE: For sedan models, connect test harness AH between the connectors (AB6, AB17, AB18) and (1AG). Measure the resistance between connector (3AG) of test harness AG and connector (2P) of test harness P. Connector & terminal (3AG) No. 9 - (2P) No. 1: (3AG) No. 7 - (2P) No. 2:	Is the resistance less than 10 Ω?	Go to step 4 .	Replace the airbag main harness along with body harness.
4 CHECK AIRBAG CONTROL MODULE. Connect all connectors. Clear the memory. Perform the Inspection Mode. Read the DTC.	Is the same DTC displayed?	Replace the airbag control module. Refer to AIRBAG CONTROL MODULE .	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)". Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .	Finish the diagnosis.