Subaru 2009 IMPREZA Service Manual page 1562

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DY:DTC P2419 EVAPORATIVE EMISSION SYSTEM SWITCHING VALVE CONTROL
CIRCUIT LOW
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(H4DOTC)-223, DTC P2419 EVAPORATIVE EMISSION SYS-
TEM SWITCHING VALVE CONTROL CIRCUIT LOW, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Improper idling
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:
MAIN RELAY
21
22
23
24
B220
B98
E4
1 2 3 4 5 6 7 8 9
E52
10 11 12 13 14 15 16 17 18 19 20
R68
R86
C: B136
1 2
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
FUSE
B220
(RELAY BLOCK)
15A
4
B97 B99
R1 R3
R82
R81
R86
DRAIN VALVE PRESSURE
SOLENOID VALVE
B97 R57
B99 R81
1 2 3 4 5
6 7 8 9 10 11 12
D: B137
1 2 3
6
8 9 10 11 12 13 14 15
16
18 19 20 21 22 23
26 27
26 27 28 29
EN(H4DOTC)(diag)-341
SBF-7
3
C: B136
D: B137
B98
R2
R15
R57
R68
CONTROL
B220
1 2 9 13
10 14
3 4
11 12 15 16
5 6
7 8 25 29
26 30
4 5 6 7
27 28 31 32
16 17
24 25
30 31
ENGINE (DIAGNOSTICS)
BATTERY
ECM
E4
PURGE CONTROL PURGE CONTROL
SOLENOID VALVE 1 SOLENOID VALVE 2
B21
1 2 3 4 5 6 7 8 9 10 11
17 21
12 13 14 15 16 17 18 19 20 21 22
18 22
23 24 25 26 27 28 29 30 31 32 33
19 20 23 24
34 35 36 37 38
33 37
42 43 44 45
34 38
48 49 50 51
35 36 39 40
E
B21
E2
E52
39 40 41
46 47
52 53 54
EN-06138