Subaru 2009 IMPREZA Service Manual page 2404

ABS Warning Light / Brake Warning Light Illumination Pattern
ABS (DIAGNOSTICS)
D: BRAKE WARNING LIGHT DOES NOT GO OFF
DETECTING CONDITION:
• Brake warning light circuit is shorted.
• Defective sensor/connector
• Defective CAN communication
TROUBLE SYMPTOM:
After starting the engine, the brake warning light remains lit though the parking lever is released.
WIRING DIAGRAM:
B301
A: i84
ABSCM & H/U BODY INTEGRATED UNIT
B16 B437 B438
1 2 3 4 5
1
2
i3
B99
1 2 3 4
1 2
5 6 7 8 9 10
11 12 13 14 15 16 6 7 8 9 10 11 12
17 18 19 20 21 22
23 24 25 26 27 28
IGNITION
SWITCH
PARKING BRAKE
FLUID LEVEL
WARNING LIGHT
MICRO COMPUTER
CAN TRANSCEIVER
& RECEIVER
3 3
B438 B437
B: B280 C: B281
B301
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
A: i84
1 2 3 4
3 4 5
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29
ABS(diag)-24
BATTERY
MAIN SBF
COMBINATION
METER
i10
i3
B38
B99 R3
5
R4
E
PARKING
SWITCH
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 29 30 31 32 33 34 35 36 37 38 39 40
B:
5 6 7 8
1 2 3
7 8 9 10 11 12 13 14 15 16 17
30 31 32 33 34 35
18 19 20 21 22 23 24
E
B16
1
BRAKE FLUID
2
LEVEL SWITCH
i10
B280
C: B281
1 2 3
4 5 6
8 9 10 11 12 13 14 15
20 21 22 23 24
25 26
4 5 6 7
16 17 18 19
25 26 27 28
ABS01040