Subaru IMPREZA 2004 Service Manual page 401

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
F: DTC P0066 AIR ASSISTED INJECTOR CONTROL CIRCUIT OR CIRCUIT
LOW
• DTC DETECTING CONDITION:
• Two consecutive driving cycles with fault
• TROUBLE SYMPTOM:
• Erroneous idling
• Engine stalls
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO)(diag)-47,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(diag)-40, OPERATION,
Inspection Mode.>.
• WIRING DIAGRAM:
MAIN RELAY
6
4
5
3
2
1
B47
E42 B47
1 2
1 2
3 4
5 6
LHD
B61
AIR ASSIST
INJECTOR
SOLENOID
VALVE
B134 ECM
F44
B22
1 2 3 4 1 2 3 4
5 6 7 8 5 6 7 8
9 10 11 12
13 14 15 16
EN(H4SO)(diag)-92
SBF-5
2
LHD
F44
E42
E3
B22
B134
1 2 3 4
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
BATTERY
5 6 7 8
34 35
E
EN-01423