Subaru 2003 LEGACY Quick Reference Index page 36

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
AIRBAG SYSTEM (DIAGNOSTICS)
B: DTC 12
DIAGNOSIS:
• Airbag main harness circuit is open, shorted or shorted to ground.
• Airbag module harness (Passenger) circuit is open, shorted or shorted to ground.
• Passenger's airbag module is faulty.
• Airbag control module is faulty.
CAUTION:
• Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect the
ground cable from the battery, and wait more than 20 seconds before starting to work.
• Before replacing the airbag module, roll connector, control module, and sensor, reconnect each
part and confirm that the warning light operates properly.
• When inspecting the airbag main harness, disconnect the airbag module connector of the driver
and passenger seats for safety reasons.
WIRING DIAGRAM:
AB6
1 2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25 26 27 28
AB6 AIRBAG CONTROL MODULE
INFLATOR
(PASSENGER SIDE)
AB9
1 2
AB-34
AB9
AB10
AB-00363