Subaru Forester 2004 Service Manual page 182

Engine section 3
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AY:DTC P0851 NEUTRAL SWITCH INPUT CIRCUIT LOW (MT 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 2.5)-42,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC 2.5)-35, OPERATION,
Inspection Mode.>.
WIRING DIAGRAM:
B128
T9
NEUTRAL
POSITION
SWITCH
T9
B128
B21
E2
E
ECM
B137
MT
12
11
B12
T3
T7
EN(H4DOTC 2.5)-181
ENGINE (DIAGNOSTIC)
INHIBITOR SWITCH
P
R
N
D
3
2
1
12
7
STARTER MOTOR
M
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
2
1
4 3
B21
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
B137
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
EN-02370

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