Subaru 2009 IMPREZA Service Manual page 1385

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AO:DTC P0230 FUEL PUMP PRIMARY CIRCUIT
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(H4DOTC)-75, DTC P0230 FUEL PUMP PRIMARY CIRCUIT, Di-
agnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to EN(H4DOTC)(diag)-54,
OPERATION, Clear Memory Mode.>, and Inspection Mode <Ref. to EN(H4DOTC)(diag)-43, PROCE-
DURE, Inspection Mode.>.
WIRING DIAGRAM:
B97
R1
FUEL PUMP CONTROL UNIT
R15
R57
FUEL PUMP
M
R58
B220
1 2 9 13 17 21
10 14 18 22
3 4
11 12 15 16 19 20 23 24
5 6
7 8 25 29 33 37
26 30 34 38
27 28 31 32 35 36 39 40
14 13
FUEL PUMP
B220
RELAY
R122
R1
B97
ECM
B: B135
C: B136
R58 R122
1 2 3 4
1 2
5 6 7 8 9 10
3 4
5 6
1 2
6 7 8 9 10 11 12
EN(H4DOTC)(diag)-164
E
B: B135
1 2 3 4 5 6
8 9 10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27
B97
28 29 30 31 32 33 34 35
R57
3 4 5
BATTERY
No.11
C: B136
7 1 2 3 4 5
7 8 9 10 11 12 13 14 15
17 18 19 20 21 22 23 24 25
28 29 30 31 32 33 34 35
E
6
16
26 27
EN-05897