2006 INFINITI M35 Factory Service Manual

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Page 2041 of 5621

INFINITI M35 2006 Factory Service Manual EC-498
[VQ35DE]
DTC P0605 ECM
Revision: 2006 January2006 M35/M45
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Re

Page 2042 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0643 SENSOR POWER SUPPLY
EC-499
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
DTC P0643 SENSOR POWER SUPPLYPFP:18919
On Board Diagnosis LogicNBS0052I
This self-diagnosis h

Page 2043 of 5621

INFINITI M35 2006 Factory Service Manual EC-500
[VQ35DE]
DTC P0643 SENSOR POWER SUPPLY
Revision: 2006 January2006 M35/M45
Wiring DiagramNBS0052K
TBWT0978E

Page 2044 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0643 SENSOR POWER SUPPLY
EC-501
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CA

Page 2045 of 5621

INFINITI M35 2006 Factory Service Manual EC-502
[VQ35DE]
DTC P0643 SENSOR POWER SUPPLY
Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNBS0052L
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two groun

Page 2046 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0643 SENSOR POWER SUPPLY
EC-503
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
3. CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, b

Page 2047 of 5621

INFINITI M35 2006 Factory Service Manual EC-504
[VQ35DE]
DTC P0850 PNP SWITCH
Revision: 2006 January2006 M35/M45
DTC P0850 PNP SWITCHPFP:23006
Component DescriptionNBS0052M
When the selector lever position is P or N, park/neutral position (P

EC-504
[VQ35DE]
DTC P0850 PNP SWITCH
Revision: 2006 January2006 M35/M45
DTC P0850 PNP SWITCHPFP:23006
Component DescriptionNBS0052M
When the selector lever position is P or N, park/neutral position (PNP) switch is ON.
ECM detects the position because the continuity of the line (the ON signal) exists.
CONSULT-II Reference Value in Data Monitor ModeNBS0052N
Specification data are reference values.
On Board Diagnosis LogicNBS0052O
DTC Confirmation ProcedureNBS0052P
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CON-
SULT-II. Then check the “P/N POSI SW” signal under the follow-
ing conditions.
If NG, go to EC-507, "
Diagnostic Procedure" .
If OK, go to following step.
3. Select “DATA MONITOR” mode with CONSULT-II.
4. Start engine and warm it up to normal operating temperature.
5. Maintain the following conditions for at least 50 consecutive sec-
onds.
6. If 1st trip DTC is detected, go to EC-507, "
Diagnostic Procedure" .
MONITOR ITEM CONDITION SPECIFICATION
P/N POSI SW
Ignition switch: ONSelector lever: P or N ON
Selector lever: Except above OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0850
0850Park/neutral position
switchThe signal of the park/neutral position (PNP)
switch is not changed in the process of engine
starting and driving.
Harness or connectors
[The park/neutral position (PNP) switch
circuit is open or shorted.]
Park/neutral position (PNP) switch
Unified meter and A/C amp.
TCM
Position (Selector lever) Known-good signal
N or P position ON
Except above position OFF
SEF212Y
ENG SPEED 1,400 - 6,375 rpm
COOLAN TEMP/S More than 70
C (158F)
B/FUEL SCHDL 2.0 - 31.8 msec
VHCL SPEED SE More than 64 km/h (40 MPH)
Selector lever Suitable position
SEF213Y

Page 2048 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0850 PNP SWITCH
EC-505
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
Overall Function CheckNBS0052Q
Use this procedure to check the overall function of the park/neut

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