2009 NISSAN LATIO Service Repair Manual

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Page 1065 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0845 TRANSMISSION FLUID PRES
SURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
CVT-121
< SERVICE INFORMATION >
[RE0F08A] D
E
F
G H
I
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K L
M A
B CVT
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Diagnosis Procedure
INFOID:00000000046670211.

Page 1066 of 4331

NISSAN LATIO 2009 Service Repair Manual OK >> Replace TCM. Refer to
CVT-12, " Service After Replacing TCM and Transaxle Assembly " .
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARN

Page 1067 of 4331

NISSAN LATIO 2009 Service Repair Manual CVT
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DTC P0868 SECONDARY PRESSURE DOWN
Description INFOID:0000000004667022
• The pressure control solenoid valve B (secondary pressure solenoid valve) is included in the control

CVT
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DTC P0868 SECONDARY PRESSURE DOWN
Description INFOID:0000000004667022
• The pressure control solenoid valve B (secondary pressure solenoid valve) is included in the control valve assembly.
• The pressure control solenoid valve B (secondary pressure solenoid valve) regulates the secondary pres-
sure to suit the driving condition in response to a signal sent from the TCM.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004667023
Remarks: Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004667024
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0868 SEC/PRESS DOWN” with CONSULT-III is detected when secondary fluid
pressure is too low compared with the commanded value while driving.
Possible Cause INFOID:0000000004667025
• Harness or connectors (Solenoid circuit is open or shorted.)
• Pressure control solenoid valve B (Secondary pressure solenoid valve) system
• Transmission fluid pressure sensor A (Secondary pressure sensor)
• Line pressure control system
DTC Confirmation Procedure INFOID:0000000004667026
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MO NITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that output voltage of CVT fluid temperature sensor is within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to
increase the voltage (c ool down the fluid)
3. Start engine and maintain the following conditions for at least 10 consecutive seconds. VEHICLE SPEED (accelerate slowly): 0 → 50 km/h (31 MPH)
ACC PEDAL OPEN: 0.5/8 - 1.0/8
RANGE: “D” position
4. If DTC is detected, go to CVT-123, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004667027

Page 1068 of 4331

NISSAN LATIO 2009 Service Repair Manual OK >> GO TO 5.
NG >> GO TO 2. Inspections before Trouble Diagnosis " .
OK or NG OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-40, " Inspections before Trouble Diagnosis " .
Compo

Page 1069 of 4331

NISSAN LATIO 2009 Service Repair Manual CVT
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DTC P1701 TRANSMISSION CONT
ROL MODULE (POWER SUPPLY)
Description INFOID:0000000004667028
When the power supply to the TCM is cut OFF, for exam ple because the battery is removed, and the se

Page 1070 of 4331

NISSAN LATIO 2009 Service Repair Manual TCM Terminal and Reference Value " .

Page 1071 of 4331

NISSAN LATIO 2009 Service Repair Manual CVT
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Diagnosis Procedure
INFOID:0000000004667033OBD-II Diagnostic Trouble Code (DTC) " .
4. Turn ignition switch OFF, and wait for 5 seconds or more.
5. Start engine.
6. Confirm self-diagnostic

Page 1072 of 4331

NISSAN LATIO 2009 Service Repair Manual CVT-128< SERVICE INFORMATION >
[RE0F08A]
DTC P1701 TRANSMISSION CONT
ROL MODULE (POWER SUPPLY)
• 10 A fuse (No.49, located in the IPDM E/R)
• 20 A fuse (No.53, located in the IPDM E/R)
• Ignit

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