Subaru Legacy 2002 Service Manual page 2633

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (Diagnostics)
Z: DTC 43 AEB COMMUNICATION LINE MALFUNCTION
S005504J61
DIAGNOSIS:
¼ AEB communication line is broken or short circuited.
TROUBLE SYMPTOM:
¼ VDC does not operate.
WIRING DIAGRAM:
B4M2522
VDC-174