Subaru Impreza 2004 Service Manual page 165

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BZ:DTC P0852 NEUTRAL SWITCH INPUT CIRCUIT HIGH (AT MODEL)
• 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, OPER-
ATION, Inspection Mode.>.
• WIRING DIAGRAM:
B128
T9
NEUTRAL
POSITION
SWITCH
T9
B128
LHD RHD
B100
F2
LHD RHD
F60
E3
E
B134 ECM
MT
: LHD B22 : RHD
EN(H4DOTC)(diag)-244
WD : MODEL WITH
DRIVER'S CONTROL
CENTER DIFFERENTIAL
: MODEL WITHOUT
OD
DRIVER'S CONTROL
CENTER DIFFERENTIAL
INHIBITOR SWITCH
P R N D
12 12
11 7
B12 T3 T7
STARTER MOTOR
B14
B12
1 2 3 4
5 6 7 8
9 10 11 12
T7
1 2 3 4 5 6
7 8 9 10 11 12
B128 : WD
1 2
4 5 6
B128
2
3 2 1
4 3
F60
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
B134
1 2 3 4
8 9
10 11 12 13 14 15
16 17 18 19 20 21
F2
1 2 3 4 5 6
M
12 13 14 15 16 17 18 19 20 21 22 23 24
3
: OD
1
B22
5 6 7
22
7 8 9 10 11
EN-02569