Subaru Legacy 2002 Service Manual page 1871

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Automatic Transmission (Diagnostics)
Q: DTC 93 REAR VEHICLE SPEED SENSOR
S004521I25
DIAGNOSIS:
Input signal circuit of TCM is open or shorted.
TROUBLE SYMPTOM:
No lock-up or excessive tight corner "braking".
WIRING DIAGRAM:
B3M2256
AT-102