Subaru Legacy 2002 Service Manual page 3295

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
Airbag System (Diagnostics)
P: DTC 51
S002811J02
DIAGNOSIS:
¼ Side airbag sensor (RH) is faulty.
¼ Side airbag harness (RH) is faulty.
¼ Airbag control module is faulty.
CAUTION:
¼ 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.
¼ Before replacing the airbag module, roll connector, control module, and sensor, reconnect each
part and confirm that the warning light operates properly.
¼ When inspecting the airbag main harness, disconnect the driver's airbag module and passenger's
airbag module connectors for safety reasons.
¼ When inspecting the side airbag harness, disconnect the side airbag module connector and seat
belt pretensioner connector for the safety reasons.
WIRING DIAGRAM:
B5M1216
AB-66