2011 NISSAN LATIO Service Repair Manual

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Page 2193 of 3787

NISSAN LATIO 2011 Service Repair Manual DTC P0643 SENSOR POWER SUPPLYEC-899
< SERVICE INFORMATION > [MR18DE]
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Wiring DiagramINFOID:0000000006342082
Specification data are reference values and are measured betw

Page 2194 of 3787

NISSAN LATIO 2011 Service Repair Manual EC-900
< SERVICE INFORMATION >[MR18DE]
DTC P0643 SENSOR POWER SUPPLY
Diagnosis Procedure
INFOID:0000000006342083
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground

Page 2195 of 3787

NISSAN LATIO 2011 Service Repair Manual DTC P0643 SENSOR POWER SUPPLYEC-901
< SERVICE INFORMATION > [MR18DE]
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2.CHECK ACCELERATOR PEDAL POSITION
SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal p

Page 2196 of 3787

NISSAN LATIO 2011 Service Repair Manual EC-902
< SERVICE INFORMATION >[MR18DE]
DTC P0643 SENSOR POWER SUPPLY
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuat

Page 2197 of 3787

NISSAN LATIO 2011 Service Repair Manual DTC P0850 PNP SWITCHEC-903
< SERVICE INFORMATION > [MR18DE]
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DTC P0850 PNP SWITCH
Component DescriptionINFOID:0000000006342084
When the shift lever position is Neutral,

DTC P0850 PNP SWITCHEC-903
< SERVICE INFORMATION > [MR18DE]
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DTC P0850 PNP SWITCH
Component DescriptionINFOID:0000000006342084
When the shift lever position is Neutral, park
/neutral position (PNP) switch is ON. (M/T)
When the shift lever position is P or N, transmission range switch is ON. (A/T and CVT)
ECM detects the position because the continuity of the line (the ON signal) exists.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000006342085
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000006342086
DTC Confirmation ProcedureINFOID:0000000006342087
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-III
1. Turn ignition switch ON.
2. Select “P/N POSI SW” in “DATA MONITOR” mode wit h CONSULT-III. Then check the “P/N POSI SW” sig-
nal under the following conditions.
If NG, go to EC-906, "
Diagnosis Procedure".
If OK, go to following step.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Start engine and warm it up to normal operating temperature.
5. Maintain the following conditions for at least 60 consecutive seconds.
Monitor item Condition Specification
P/N POSI SW • Ignition switch: ON Shift lever: P or N (A/T, CVT),
Neutral (M/T)
ON
Shift lever: Except above OFF
DTC No. Trouble diagnosis nameDTC detecting conditionPossible cause
P0850
0850 Park/neutral position switch The park/neutral position (PNP) signal is not
changed in the process of engine starting and
driving. • Harness or connectors
[Park/neutral position (PNP) signal circuit
is open or shorted.]
• Park/neutral position (PNP) switch (M/T)
• Transmission range switch (A/T and CVT)
Position (Shift lever) Known-good signal
N or P position (A/T, CVT)
Neutral position (M/T) ON
Except above OFF
ENG SPEED More than 1,200 rpm (CVT)
More than 1,450 rpm (A/T)
More than 1,900 rpm (M/T)
COOLAN TEMP/S More than 70°C (158 °F)
Revision: May 2010 2011 Versa

Page 2198 of 3787

NISSAN LATIO 2011 Service Repair Manual EC-904
< SERVICE INFORMATION >[MR18DE]
DTC P0850 PNP SWITCH
6. Check 1st trip DTC.
7. If 1st trip DTC is detected, go to
EC-906, "
Diagnosis Procedure".
Overall Function CheckINFOID:0000000006342088

Page 2199 of 3787

NISSAN LATIO 2011 Service Repair Manual DTC P0850 PNP SWITCHEC-905
< SERVICE INFORMATION > [MR18DE]
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M A
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Wiring DiagramINFOID:0000000006342089
Specification data are reference values and are measured between each

Page 2200 of 3787

NISSAN LATIO 2011 Service Repair Manual EC-906
< SERVICE INFORMATION >[MR18DE]
DTC P0850 PNP SWITCH
Diagnosis Procedure
INFOID:0000000006342090
A/T MODELS AND CVT MODELS
1.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignitio

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