Subaru LEGACY 2006 Manual page 237

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BF:DTC P0442 EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED
(SMALL LEAK)
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(H4SO)-120, DTC P0442 EVAPORATIVE EMISSION CONTROL
SYSTEM LEAK DETECTED (SMALL LEAK), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Fuel odor
• There is a hole of more than 1.0 mm (0.04 in) dia. in evaporation system or fuel tank.
CAUTION:
After repairing or replacing the defective part, perform the Clear Memory Mode <Ref. to EN(H4SO)(di-
ag)-43, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(diag)-34, PRO-
CEDURE, Inspection Mode.>.
WIRING DIAGRAM:
MAIN RELAY
5
3
6
4
2
1
B47
DRAIN VALVE
B21
1 2 3 4 5 6 7 8 9 10 11
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 39 40 41
42 43 44 45 46 47
48 49 50 51 52 53 54
B97
R1
R46
R67
R143
B47
C: B136
1 2
1 2 3
3 4
7 8 9 10 11 12 13 14 15
5 6
17 18 19 20 21 22 23
28 29 30
B97
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
EN(H4SO)(diag)-200
BATTERY
SBF-7
C: B136 D: B137
ECM
B97
R1
R15
R213
R68
PRESSURE CONTROL
PURGE CONTROL
SOLENOID VALVE
SOLENOID VALVE
D: B137
4 5 6 1 2 3 4 5
16 10 11 12 13 14 15
8 9
24 25 26 27 18 19 20 21 22 23
31 32 33 34 35
26 27 28 29
R68 R143 E4
1 2
1 2
1 2
E
B21
E2
E4
R213
1 2 3
6 7
4 5 6 7 8
16 17
24 25
30 31
R67
1 2
3 4 5 6
EN-04043