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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AZ:DTC P0851 PARK/NEUTRAL SWITCH INPUT CIRCUIT LOW
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(H4DOTC)(diag)-
37, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)(diag)-30, PROCE-
DURE, Inspection Mode.>.
WIRING DIAGRAM:
B137
ECM
AT
19
TCM
B25
T2
NEUTRAL
POSITION
SWITCH
T2
B25
E
EN(H4DOTC)(diag)-158
B55
B25
1 2
B55
1 2 3 4
5 6
7
8
9
10 11 12
13
14 15
16 17 18
19 20 21
22 23 24
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-03558
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