Subaru 2003 LEGACY Quick Reference Index page 50

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
AIRBAG SYSTEM (DIAGNOSTICS)
J: DTC 31
DIAGNOSIS:
• Front sub-sensor harness (RH) circuit is shorted.
• Front sub-sensor harness (RH) circuit is open.
• Front sub-sensor (RH) 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 driver's airbag module and passenger's
airbag module connectors for safety reasons.
WIRING DIAGRAM:
AB15 AB16
1 2
1 2
AB6 AIRBAG CONTROL MODULE
FRONT SUB SENSOR RH
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
AB-48
AB14
AB15
AB16
AB-00297