Subaru Legacy 2003 Service Manual page 575

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AH:DTC P0328 — KNOCK SENSOR 1 CIRCUIT HIGH INPUT (BANK 1 OR SIN-
GLE SENSOR) —
• DTC DETECTING CONDITION:
• Immediately at fault recognition
• TROUBLE SYMPTOM:
• Poor driving performance
• Knocking occurs.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode<Ref. to EN(H4SO)-47, OPER-
ATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)-40, OPERATION, Inspection
Mode.> .
• WIRING DIAGRAM:
E14 B21
1 2
1 2
5 6 7
9 10
13 14 15
17 18
KNOCK
SENSOR
E14
E2
B21
B135
1 2 3
3 4
8 9 10 11 12 13 14 15
8
20 21 22 23
11 12
16
19 20
EN(H4SO)-178
ECM
B135
4 5 6 7
16 17 18 19
24 25 26 27 28
EN-00728