Subaru Legacy 2005 Service Manual page 590

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BA:DTC P0852 PARK/NEUTRAL SWITCH INPUT CIRCUIT HIGH
1. AT MODEL
DTC DETECTING CONDITION:
Detects when malfunction occurs in 2 continuous driving cycles.
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H4SO 2.0)(diag)-
38, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.0)(diag)-32, PRO-
CEDURE, Inspection Mode.>.
WIRING DIAGRAM:
B25
T2
NEUTRAL
POSITION
SWITCH
T2
B25
B122 : LHD
B83
: RHD
B21
E2
E
B135 ECM
MT
11
7
12
12
B12
T3
T7
*
: TERMINAL No. RANDOM ARRANGEMENT
EN(H4SO 2.0)(diag)-170
INHIBITOR SWITCH
P
R
N
D
3
2
1
STARTER MOTOR
M
B14
B135
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
B25
1 2
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
B122 : LHD
B83
: RHD
1 2 3 4
5 6 7 8
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
EN-03485

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