Subaru IMPREZA GD 2007 Series Manual page 3580

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12.Airbag Warning Light Failure
A: AIRBAG WARNING LIGHT REMAINS ON
DIAGNOSIS:
• Airbag warning light is faulty.
• Airbag control module to airbag warning light circuit is shorted or open.
• Grounding circuit is faulty.
• Airbag control module is faulty.
• Connection of (AB1) and (B31) is improper.
• Improper connection of (AB3) to airbag control module
CAUTION:
• Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground terminal from battery, and wait for 20 seconds or more before starting to work.
• When inspecting the airbag main harness, disconnect the airbag module connectors of the driver's
and passenger's seats for safety.
WIRING DIAGRAM:
• Auto A/C model
AB3
B31 B37
1 2 3
1 2
4 5 6 7 8
5 6 7 8
10 11 12 13 14 15
16 17
20 21 22 23
Airbag Warning Light Failure
No.13
B31
AB1
AIRBAG CONTROL MODULE
i1
3 4 1 2 3
1 2 3 4
9 7 8 9 10 11 12 13 14
5 6 7 8 9 10
11 12 13 14 15 16
18 19 18 19 20 21 22 23 24 25 26 27 28
17 18 19 20 21 22
24 25
23 24 25 26 27 28
AB(diag)-37
AIRBAG SYSTEM (DIAGNOSTICS)
IGNITION SWITCH
B36 i1
11 C7
B37 i2
AIRBAG
AIRBAG
WARNING
13 B18
CIRCUIT
LIGHT
5 C6
B36 i1
i10
B:
C: i11
AB3
C:
4 5 6
1 2 3 4 5 6 7 8 9 10
15 16 17
B:
1 2 3 4 5 6 7
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
i11
i10
8 9 10 11 12 13 14
AB-01692