Subaru Impreza 2004 Service Manual page 103

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AV:DTC P0458 EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CON-
TROL VALVE CIRCUIT LOW
• DTC DETECTING CONDITION:
• Two consecutive driving cycles with fault
• TROUBLE SYMPTOM:
• Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4DOTC)(diag)-
47, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)(diag)-39, Inspec-
tion Mode.>.
• WIRING DIAGRAM:
MAIN RELAY
6
4
5
3
2
1
B47
LHD 8 LHD
B61 F44
B84 ECM
RHD RHD
B61 B100
F44 F2
RHD
RHD
F60 B22
: LHD
E3
E4
PURGE CONTROL
SOLENOID VALVE
EN(H4DOTC)(diag)-182
BATTERY
SBF-5
: RHD
E
B47
F44
1 2
1 2 3 4
3 4
5 6 7 8
5 6
B84
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
: LHD
F60
B22 : RHD
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
E4
1 2
F2
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24
EN-02561