Subaru 2009 IMPREZA Service Manual page 1476

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CK:DTC P0852 NEUTRAL SWITCH INPUT CIRCUIT HIGH (MT MODEL)
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(H4DOTC)-168, DTC P0852 NEUTRAL SWITCH INPUT CIRCUIT
HIGH (MT MODEL), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Improper idling
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to EN(H4DOTC)(diag)-54,
OPERATION, Clear Memory Mode.>, and Inspection Mode <Ref. to EN(H4DOTC)(diag)-43, PROCE-
DURE, Inspection Mode.>.
WIRING DIAGRAM:
B136 ECM
B122
B128
T9
T12
*
NEUTRAL
POSITION SWITCH
EN(H4DOTC)(diag)-255
: TERMINAL No. OPTIONAL
ARRANGEMENT
ENGINE (DIAGNOSTICS)
B136
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
B128
1 2
3 4
B122
1 2 3 4
5 6 7 8
T12
1 2
EN-05911