Subaru IMPREZA 2002 Service Manual page 303

3
DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
ABS (DIAGNOSTICS)
K: DTC29
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty tone wheel
Wheels turning freely for a long time
TROUBLE SYMPTOM:
ABS does not operate.
ABNORMAL ABS SENSOR SIGNAL ON ANY ONE OF FOUR SENSOR
ABS-I 17