Subaru IMPREZA 2002 Service Manual page 227

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DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
ABS (DIAGNOSTICS)
_ _ _ _ ~
G: DTC27
ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO
HIGH) (REAR LH)
DIAGNOSIS:
Faulty ABS sensor (Broken wire, input voltage too high)
Faulty harness connector
TROUBLE SYMPTOM:
ABS does not operate.
ABS41