Subaru 2009 IMPREZA Service Manual page 2416

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ABS (DIAGNOSTICS)
I: DTC C0115 ABS WHEEL SPEED SENSOR SIGNAL MALFUNCTION IN ONE
OF FOUR WHEELS
DTC DETECTING CONDITION:
• Defective ABS wheel speed sensor signal (noise, abnormal signal, etc.)
• Defective magnetic encoder
• When a wheel is turned freely for a long time
TROUBLE SYMPTOM:
• ABS does not operate.
• EBD does not operate.
NOTE:
Brake warning light comes on as well as the ABS warning light.
WIRING DIAGRAM:
B15
FRONT ABS
WHEEL SPEED
SENSOR LH
B6 R72
B15 R73
2 1
B301
B6
FRONT ABS
WHEEL SPEED WHEEL SPEED
SENSOR RH
B98
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
ABS(diag)-36
ABSCM & H/U
B99 B98
R3 R2
R73 R72
REAR ABS REAR ABS
WHEEL SPEED
SENSOR LH SENSOR RH
B99
1 2 3 4 5
6 7 8 9 10 11 12 12 13
E
B301
1 2 3 4 5 6 7 8 9 10 11
14 15
16 17 18 19 20 21 22 23 24 25 26
ABS01041