Subaru Impreza 2003 Service Manual page 635

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
BP:DTC P0851 — NEUTRAL SWITCH INPUT CIRCUIT LOW (AT VEHICLES) —
• 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(H4SO)-46, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)-39, OPERATION, Inspec-
tion Mode.>.
• WIRING DIAGRAM:
B25
T2
NEUTRAL
POSITION
SWITCH
T2
B25
B22
E3
E
B136 ECM
MT
12 12
11 7
B12 T3 T7
EN(H4SO)-223
ENGINE (DIAGNOSTICS)
INHIBITOR SWITCH
1
7
P R N D 3 2 1
18
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
B136
2 3 4 5 6
8 9 10 11 12 13 14 15 16 17
19 20 21 22 23 24 25 26
B25
1 2
B21
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
EN-01447