Subaru IMPREZA GD 2007 Series Manual page 282

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AY:DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH (BANK 1 OR SINGLE SENSOR)
DTC DETECTING CONDITION:
• Immediately at fault recognition
• GENERAL DESCRIPTION <Ref. to GD(H4SO)-103, DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH
(BANK 1 OR SINGLE SENSOR), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Poor driving performance
• Knocking occurs.
CAUTION:
After repairing or replacing the defective parts, perform the Clear Memory Mode <Ref. to
EN(H4SO)(diag)-47, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(di-
ag)-38, PROCEDURE, Inspection Mode.>.
WIRING DIAGRAM:
KNOCK SENSOR
E14
E100
B21
B134 ECM
EN(H4SO)(diag)-173
1 2 3 4
12 13 14 15 16 17 18 19 20 21 22
23 24 25 26 27 28 29 30 31 32 33
34 35 36 37 38
42 43
48 49 50 51 52 53 54
1 2
8 9 10 11 12 13 14 15
18 19 20 21
28 29 30 31
E
ENGINE (DIAGNOSTICS)
E14
1 2
B21
5 6 7 8 9 10 11
39 40 41
44 45 46 47
B134
3 4 5 6 7
16 17
22 23 24 25 26 27
32 33 34
EN-05393