2009 NISSAN LATIO display

CVT
N
O P
DTC P0845 TRANSMISSION FLUID PR
ESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
Description INFOID:0000000004667015
• The transmission fluid pressure sensor B (primary pre ssure sensor) is included in the control valve assem-
bly.
• The transmission fluid pressure sensor B (primary pr essure sensor) detects primary pressure of CVT and
sends TCM the signal.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004667016
Remarks: Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004667017
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0845 TR PRS SENS/B CIRC” wi th CONSULT-III is detected under the following
conditions.
- When TCM detects an improper voltage drop when it receives the sensor signal.
- When TCM compares target value with monitor value and detects an irregularity.
Possible Cause INFOID:0000000004667018
• Transmission fluid pressure sensor B (Primary pressure sensor)
• Harness or connectors (Sensor circuit is open or shorted.)
DTC Confirmation Procedure INFOID:0000000004667019
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 line te mperature 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 wait for at least 5 consecutive seconds.
4. If DTC is detected, go to CVT-121, " Diagnosis Procedure " .
WITH GST
Follow the procedure “WITH CONSULT-III”. Item name Condition Display value (Approx.)
PRI HYDR SEN “N” position idle 0.7 V

DTC P0845 TRANSMISSION FLUID PRES
SURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
CVT-121
< SERVICE INFORMATION >
[RE0F08A] D
E
F
G H
I
J
K L
M A
B CVT
N
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Diagnosis Procedure
INFOID:00000000046670211.
CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITO R” mode for “TRANSMISSION” with CONSULT-III.
3. Start vehicle and read out the value of “PRI HYDR SEN”.
Without CONSULT-III
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG OK >> GO TO 5.
NG >> GO TO 2. 2.
CHECK SENSOR POWER AND SENSOR GROUND
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between TCM connector terminals.
OK or NG OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND CVT UNI T HARNESS CONNECTOR (SENSOR POWER ANDSENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed. Item name Condition Display value (Approx.)
PRI HYDR SEN “N” position idle 0.7 V Name Connector Terminal Condition
Voltage
(Approx.)
Transmis-
sion fluid
pressure
sensor B
(Primary
pressure
sensor) E32 41 - Ground “N” position idle 0.7 V SCIA4509E
Item Connector Terminal
Data (Ap-
prox.)
TCM connector E32 46 - 42 5.0 V SCIA2367E
Item Connector Terminal Continuity
TCM E32 42 Yes
CVT unit harness connector F46 19
TCM E32 46 Yes
CVT unit harness connector F46 20 SCIA4681E

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 results again. Refer to CVT-51, " CONSULT-III Function (TRANSMISSION) " .
Is the “ P1701 TCM-POWER SUPPLY ” displayed?
YES >> GO TO 2.
NO >> INSPECTION END OK >> GO TO 3.
NG >> GO TO 4. OK >> GO TO 5.
NG >> GO TO 4.

CVT
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DTC P1705 THROTTLE POSITION SENSOR
Description INFOID:0000000004667034
Electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle
position sensor etc. The actuator sends a signal to the ECM, and ECM sends the signal to TCM with CAN
communication.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004667035
Remarks: Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004667036
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1705 TP SEN/CIRC A/T” with CONSULT-III is detected when TCM does not
receive the proper accelerator pedal position si gnals (input by CAN communication) from ECM.
Possible Cause INFOID:0000000004667037
• ECM
• Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation Procedure INFOID:0000000004667038
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. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Depress accelerator pedal fully and release it, then wait for 5 seconds.
4. If DTC is detected, go to CVT-129, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004667039CONSULT-III Functi
on (TRANSMISSION) " .
Is any malfunction of the “ U1000 CAN COMM CIRCUIT ” indicated?
YES >> Check the CAN communication line. Refer to
CVT-60 .
NO >> GO TO 2. Item name Condition Display value (Approx.)
ACC PEDAL OPEN Release accelerator ped-
al.↓
Fully depressed acceler- ator pedal 0.0/8
↓
8.0/8

CVT
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DTC P1722 ESTM VEHICLE SPEED SIGNAL
Description INFOID:0000000004667040
The vehicle speed signal is transmitt ed from ABS actuator and electric unit (control unit) to TCM by CAN com-
munication line.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004667041
Remarks: Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004667042
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1722 ESTM VEH SPD SIG” with CONSULT-III is detected when TCM does not
receive the proper vehicle speed signal (input by CAN communication) from ABS actuator and electric unit
(control unit).
Possible Cause INFOID:0000000004667043
• Harness or connectors (Sensor circuit is open or shorted.)
• ABS actuator and electric unit (control unit)
DTC Confirmation Procedure INFOID:0000000004667044
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, touch “ERASE” on “SELF-DIAG RESU LTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine and maintain the following conditions for at least 5 consecutive seconds.
ACC PEDAL OPEN: 1.0/8 or less
VEHICLE SPEED SE: 30 km/h (17 MPH) or more
4. If DTC is detected, go to CVT-131, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004667045CONSULT-III Functi
on (TRANSMISSION) " .
Is any malfunction of the “ U1000 CAN COMM CIRCUIT ” indicated?
YES >> Check CAN communication line. Refer to
CVT-60 .
NO >> GO TO 2. CONSULT-III
Function (ABS) " .
OK or NG OK >> GO TO 3.
NG >> Repair or replace damaged parts.
Item name Condition Display value
ESTM VSP SIG During driving Approximately matches the speedometer reading.
VEHICLE SPEED

OK >> GO TO 5.
NG >> GO TO 4. TCM Terminal and Reference Value " .
OK or NG OK >> GO TO 5.
NG >> Repair or replace damaged parts. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 2.
Item name Condition Display value
ESTM VSP SIG During drivingApproximately matches
the speedometer reading.
VEHICLE SPEED

CVT
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DTC P1723 CVT SPEED SENSOR FUNCTION
Description INFOID:0000000004667046
• The input speed sensor (primary speed sensor) is included in the control valve assembly.
• The vehicle speed sensor CVT [output speed sensor (s econdary speed sensor)] detects the revolution of the
idler gear and generates a pulse signal. The pulse signal is sent to the TCM, which converts it into vehicle
speed.
• The input speed sensor (primary speed sensor) detects the primary pulley revolution speed and sends a sig-
nal to the TCM.
On Board Diagnosis Logic INFOID:0000000004667047
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1723 CVT SPD SEN/FNCTN” with CONSULT-III is detected when there is a great
difference between the vehicle speed signal and the secondary speed sensor signal.
CAUTION:
One of the “P0720 VEH SPD SEN/CIR AT”, the “P0715 INPUT SPD SEN/CIRC” or the “P0725 ENGINE
SPEED SIG“ is displayed with the DTC at the same time.
Possible Cause INFOID:0000000004667048
• Harness or connectors (Sensor circuit is open or shorted.)
• Output speed sensor (Secondary speed sensor)
• Input speed sensor (Primary speed sensor)
• Engine speed signal system
DTC Confirmation Procedure INFOID:0000000004667049
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, touch “ERASE” on “SELF-DIAG RESU LTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MO NITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED SE: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
Driving location: Driving the vehic le uphill (increased engine load) will help maintain the driving
conditions required for this test.
3. If DTC is detected, go to CVT-133, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004667050CONSULT-III Functi
on (TRANSMISSION) " .
Is a malfunction in the step motor function indicated in the results? YES >> Repair or replace damaged parts. (C
heck the step motor function. Refer to CVT-145 .)
NO >> GO TO 2.
2. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR SYSTEM) AND INPUT SPEED ,
CVT-80 .

Diagnosis Procedure " .
WITH GST
Follow the procedure “WITH CONSULT-III”. Item name Condition Display value
LUSEL SOL OUT Selector lever in “P
” and “N” positions ON
Wait at least for 5 seconds with the selector lever
in “R”, “D” and “L” positions OFF