stop start NISSAN TEANA 2008 Service Manual
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Page 4594 of 5121
![NISSAN TEANA 2008 Service Manual TCM
TM-121
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P Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with the throttle position when an un NISSAN TEANA 2008 Service Manual TCM
TM-121
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P Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with the throttle position when an un](/img/5/57391/w960_57391-4593.png)
TCM
TM-121
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P Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with the throttle position when an unexpected signal is sent from
the output speed sensor (secondary speed sensor) to the TCM. The sport mode is inhibited, and the transaxle
is put in “D”.
Input Speed Sensor (Primary Speed Sensor)
The shift pattern is changed in accordance with the throttle position and secondary speed (vehicle speed)
when an unexpected signal is sent from the input speed sensor (primary speed sensor) to the TCM. The sport
mode is inhibited, and the transaxle is put in “D”.
PNP Switch
If an unexpected signal is sent from the PNP switch to the TCM, the transaxle is put in “D”.
CVT Fluid Temperature Sensor
If an unexpected signal is sent from the CVT fluid temperature sensor to the TCM, the gear ratio in use before
receiving the unexpected signal is maintained or the gear ratio is controlled to keep engine speed under 5,000
rpm.
Transmission Fluid Pressure Sensor A (Secondary Pressure Sensor)
If an unexpected signal is sent from the transmission fluid pressure sensor A (secondary pressure sensor) to
the TCM, the secondary pressure feedback control is stopped and the offset value obtained before the non-
standard condition occurs is used to control line pressure.
If transmission fluid pressure sensor A (secondary pressure sensor) error signal is inputted to the TCM, sec-
ondary pressure feedback control stops, but line pressure is controlled normally.
Pressure Control Solenoid A (Line Pressure Solenoid Valve)
If an unexpected signal is sent from the solenoid valve to the TCM, the pressure control solenoid A (line pres-
sure solenoid valve) is turned OFF to achieve the maximum fluid pressure.
Pressure Control Solenoid B (Secondary Pressure Solenoid Valve)
If an unexpected signal is sent from the solenoid valve to the TCM, the pressure control solenoid B (secondary
pressure solenoid valve) is turned OFF to achieve the maximum fluid pressure.
Torque Converter Clutch Solenoid Valve
If an unexpected signal is sent from the solenoid valve to the TCM, the torque converter clutch solenoid valve
is turned OFF to cancel the lock-up.
Ste p M oto r
If an unexpected signal is sent from the step motor to the TCM, the step motor coil phases “A” through “D” are
all turned OFF to hold the gear ratio used just before the non-standard condition occurred.
CVT Lock-up Select Solenoid Valve
If an unexpected signal is sent from the solenoid valve to the TCM, the CVT lock-up select solenoid valve is
turned OFF to cancel the lock-up.
TCM Power Supply (Memory Back-up)
Transaxle assembly is protected by limiting the engine torque when the memory back-up power supply (for
controlling) from the battery is not supplied to the TCM. Normal status is restored when turning the ignition
switch OFF to ON after the normal power supply.
DTC Inspection Priority ChartINFOID:0000000003849062
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is indicated with other DTCs, start from a diagnosis for “DTC
U1000 CAN COMMUNICATION LINE”. Refer to TM-41
.
DTC IndexINFOID:0000000003849063
NOTE:
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above
Page 4607 of 5121
![NISSAN TEANA 2008 Service Manual TM-134
< SYMPTOM DIAGNOSIS >[CVT: RE0F09B]
SYSTEM SYMPTOM
30
OthersEngine starts in posi-
tions other than “N” or
“P”.ON vehicle1. Ignition switch and starterPG-55
, STR-6
2. CVT positionTM-1 NISSAN TEANA 2008 Service Manual TM-134
< SYMPTOM DIAGNOSIS >[CVT: RE0F09B]
SYSTEM SYMPTOM
30
OthersEngine starts in posi-
tions other than “N” or
“P”.ON vehicle1. Ignition switch and starterPG-55
, STR-6
2. CVT positionTM-1](/img/5/57391/w960_57391-4606.png)
TM-134
< SYMPTOM DIAGNOSIS >[CVT: RE0F09B]
SYSTEM SYMPTOM
30
OthersEngine starts in posi-
tions other than “N” or
“P”.ON vehicle1. Ignition switch and starterPG-55
, STR-6
2. CVT positionTM-152
3. PNP switchTM-44
31When brake pedal is
depressed with igni-
tion switch ON, selec-
tor lever cannot be
shifted from “P” posi-
tion to other position.ON vehicle1. Stop lamp switch
TM-103
2. Shift lock solenoid
3. Control device
32When brake pedal is
not depressed with ig-
nition switch ON, se-
lector lever can be
shifted from “P” posi-
tion to other position.ON vehicle1. Stop lamp switch
TM-103
2. Shift lock solenoid
3. Control device
33Cannot be changed to
sport mode.ON vehicle1. Sport mode switchTM-108
2. CAN communication lineTM-41
3. Combination meterMWI-42
34SPORT indicator
lamp is not turned ON.ON vehicle1. CAN communication lineTM-412. Combination meterMWI-42
3. TCM power supply and groundTM-85
No. Item Symptom Condition Diagnostic item Reference
Page 4621 of 5121
![NISSAN TEANA 2008 Service Manual TM-148
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
ROAD TEST
ROAD TEST
DescriptionINFOID:0000000003849080
DESCRIPTION
The purpose of the test is to determine the overall performance of
CVT and analyze NISSAN TEANA 2008 Service Manual TM-148
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
ROAD TEST
ROAD TEST
DescriptionINFOID:0000000003849080
DESCRIPTION
The purpose of the test is to determine the overall performance of
CVT and analyze](/img/5/57391/w960_57391-4620.png)
TM-148
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ROAD TEST
ROAD TEST
DescriptionINFOID:0000000003849080
DESCRIPTION
The purpose of the test is to determine the overall performance of
CVT and analyze causes of problems.
The road test consists of the following three parts:
1. “Check Before Engine Is Started” TM-148
.
2. “Check at Idle” TM-149
.
3. “Cruise Test” TM-150
.
Before the road test, familiarize yourself with all test procedures
and items to check.
Perform tests for all the check items until a malfunction phenome-
non is detected. Perform diagnosis for NG items after the comple-
tion of road tests.
CONSULT-III SETTING PROCEDURE
Using CONSULT-III, perform a cruise test and record the result.
Print the result and ensure that shifts and lock-ups take place as per Shift Schedule.
1. Touch “Data Monitor” on “Direct Diagnostic Mode” screen.
2. Touch “MAIN SIGNALS” to set recording condition.
3. See “Numerical Display”, “Barchart Display” or “Line Graph Display”.
4. Touch “START”.
5. When performing cruise test. Refer to TM-150, "
Cruise Test".
6. After finishing cruise test part, touch “RECORD”.
7. Touch “STORE”.
8. Touch “BACK”.
9. Touch “DISPLAY”.
10. Touch “PRINT”.
11. Check the monitor data printed out.
Check before Engine Is StartedINFOID:0000000003849081
1.CHECK SPORT INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF. Wait at least 5 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Has SPORT indicator lamp been turned ON for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnosis and note NG items. Refer to TM-121, "
DTC Index".
3. Go to TM-149, "
Check at Idle".
NO >> Stop “Road Test”. Refer to TM-123, "
Symptom Table".
SAT786A
SAT496G
Page 4622 of 5121
![NISSAN TEANA 2008 Service Manual ROAD TEST
TM-149
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Check at IdleINFOID:0000000003849082
1.CHECK STARTING THE ENGINE (PART 1)
1. Park vehicle on flat surface.
2. NISSAN TEANA 2008 Service Manual ROAD TEST
TM-149
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Check at IdleINFOID:0000000003849082
1.CHECK STARTING THE ENGINE (PART 1)
1. Park vehicle on flat surface.
2.](/img/5/57391/w960_57391-4621.png)
ROAD TEST
TM-149
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Check at IdleINFOID:0000000003849082
1.CHECK STARTING THE ENGINE (PART 1)
1. Park vehicle on flat surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Turn ignition switch to “START” position.
Is engine started?
YES >> GO TO 2.
NO >> Stop “Road Test”. Refer to TM-123, "
Symptom Table".
2.CHECK STARTING THE ENGINE (PART 2)
1. Turn ignition switch ON.
2. Move selector lever to “D”, “L” or “R” position.
3. Turn ignition switch to “START” position.
Is engine started?
YES >> Stop “Road Test”. Refer to TM-123, "Symptom Table".
NO >> GO TO 3.
3.CHECK “P” POSITION FUNCTION
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release parking brake.
4. Push vehicle forward or backward.
5. Apply parking brake.
Does vehicle move forward or backward?
YES >> Refer to TM-123, "Symptom Table". GO TO 4.
NO >> GO TO 4.
4.CHECK “N” POSITION FUNCTION
1. Start engine.
2. Move selector lever to “N” position.
3. Release parking brake.
Does vehicle move forward or backward?
YES >> Refer to TM-123, "Symptom Table". GO TO 5.
NO >> GO TO 5.
5.CHECK SHIFT SHOCK
1. Apply foot brake.
2. Move selector lever to “R” position.
Is there large shock when changing from
“N” to “R” position?
YES >> Refer to TM-123, "Symptom Table". GO TO 6.
NO >> GO TO 6.
6.CHECK “R” POSITION FUNCTION
Release foot brake for several seconds.
Does vehicle creep backward when foot brake is released?
YES >> GO TO 7.
NO >> Refer to TM-123, "
Symptom Table". GO TO 7.
7.CHECK “D” POSITION FUNCTION
Move selector lever to “D” and “L” position and check if vehicle creeps forward.
Does vehicle creep forward in all positions?
YES >> Go to TM-150, "Cruise Test".
NO >> Stop “Road Test”. Refer to TM-123, "
Symptom Table".
Page 4625 of 5121
![NISSAN TEANA 2008 Service Manual TM-152
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
CVT POSITION
CVT POSITION
Inspection and AdjustmentINFOID:0000000003849084
INSPECTION
1. Move selector lever to “P” position, and turn ignition swit NISSAN TEANA 2008 Service Manual TM-152
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
CVT POSITION
CVT POSITION
Inspection and AdjustmentINFOID:0000000003849084
INSPECTION
1. Move selector lever to “P” position, and turn ignition swit](/img/5/57391/w960_57391-4624.png)
TM-152
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CVT POSITION
CVT POSITION
Inspection and AdjustmentINFOID:0000000003849084
INSPECTION
1. Move selector lever to “P” position, and turn ignition switch ON (engine stop).
2. Check that selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
check that selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move selector lever and check for excessive effort, sticking, noise or rattle.
4. Check that selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check that the actual position of selector lever matches the position shown by shift position
indicator and manual lever on the transaxle.
5. The method of operating selector lever to individual positions
correctly should be as shown.
6. When selector button is pressed in “P”, “R”, “N”, “D” or “L” posi-
tion without applying forward/backward force to selector lever,
check button operation for sticking.
7. Check that back-up lamps illuminate only when selector lever is
placed in the “R” position.
8. When in “R” position, check that back-up lamps illuminate even
when the selector lever is pushed toward the “P” position.
CAUTION:
Check the lighting without pressing shift button.
9. Check that back-up lamps do not illuminate when selector lever is pushed toward the “R” position when in
the “P” or “N” position.
CAUTION:
Check the lighting without pressing shift button.
10. Check that the engine can only be started with selector lever in the “P” and “N” positions.
11. Check that transaxle is locked completely in “P” position.
ADJUSTMENT
1. Move selector lever to “ P” position.
CAUTION:
Turn wheels more than 1/4 rotations and apply the park
lock.
2. Loosen the control cable nut (A).
3. Place manual lever (B) to “P” position.
CAUTION:
Never apply any force to manual lever.
4. Tighten the control cable nut. Refer to TM-157, "
Exploded View".
CAUTION:
Fix manual lever when tightening.
JPDIA0343GB
JPDIA0794ZZ
Page 4676 of 5121
![NISSAN TEANA 2008 Service Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
TM-203
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Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data)](/img/5/57391/w960_57391-4675.png)
ON BOARD DIAGNOSTIC (OBD) SYSTEM
TM-203
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Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data, and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MI on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
Both 1st trip freeze frame data and freeze frame data (along with the DTC) are cleared when the ECM mem-
ory is erased.
How to Erase DTC
The diagnostic trouble code can be erased by CONSULT-III, GST or ECM DIAGNOSTIC TEST MODE as
described below.
-If the battery cable is disconnected, the diagnostic trouble code will be lost within 24 hours.
-When erasing the DTC, using CONSULT-III or GST is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to OBD. For details, refer to EC-389, "
DTCIndex".
-Diagnostic trouble codes (DTC)
-1st trip diagnostic trouble codes (1st trip DTC)
-Freeze frame data
-1st trip freeze frame data
-System readiness test (SRT) codes
-Test values
How to Erase DTC (With CONSULT-III)
The emission related diagnostic information in the TCM and ECM can be erased by selecting “All Erase” in the
“Description” of “FINAL CHECK” mode with CONSULT-III.
How to Erase DTC (With GST)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Select Mode 4 with GST (Generic Scan Tool). For details, refer to EC-122, "
DiagnosisToolFunction".
MALFUNCTION INDICATOR (MI)
Description
The MI is located on the instrument panel.
1. The MI is turned ON when the ignition switch is turned ON with-
out the engine running. This is a bulb check.
If the MI is not turned ON, refer to EC-346, "
Component Func-
tion Check".
2. The MI is turned OFF when the engine is started. If the MI
remains ON, the on board diagnostic system has detected an
engine system malfunction.
Priority Items
1
Freeze frame dataMisfire — DTC: P0300 - P0304
Fuel Injection System Function — DTC: P0171, P0172
2 Except the above items (Includes CVT related items)
3 1st trip freeze frame data
SAT652J
Page 4683 of 5121
![NISSAN TEANA 2008 Service Manual TM-210
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0703 STOP LAMP SWITCH
P0703 STOP LAMP SWITCH
DescriptionINFOID:0000000003806382
BCM detects ON/OFF state of the stop lamp switch and transmits the data to NISSAN TEANA 2008 Service Manual TM-210
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0703 STOP LAMP SWITCH
P0703 STOP LAMP SWITCH
DescriptionINFOID:0000000003806382
BCM detects ON/OFF state of the stop lamp switch and transmits the data to](/img/5/57391/w960_57391-4682.png)
TM-210
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0703 STOP LAMP SWITCH
P0703 STOP LAMP SWITCH
DescriptionINFOID:0000000003806382
BCM detects ON/OFF state of the stop lamp switch and transmits the data to the CVT control unit via CAN
communication by converting the data to a signal.
DTC LogicINFOID:0000000003806383
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Start engine.
3. Drive vehicle for at least 3 consecutive seconds.
4. Select “Self Diagnostic Results” mode for “TRANSMISSION”.
Is
“P0703 BRAKE SW/CIRC” detected?
YES >> Go to TM-210, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806384
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Check and adjust the installation position of stop lamp switch. Refer to BR-6, "
Inspection and Adjustment".
2. Disconnect BCM connector.
3. Check voltage between BCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN STOP LAMP SWITCH AND BCM (PART 1)
1. Disconnect stop lamp switch connector.
2. Check continuity between stop lamp switch vehicle side harness connector terminal and BCM vehicle side
harness connector terminal.
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0703 BRAKE SW/CIRCWhen the brake switch does
not switch to ON or OFF. Harness or connectors
- (Stop lamp switch, and BCM
circuit are open or shorted.)
- (CAN communication line is
open or shorted.)
Stop lamp switch
BCM vehicle side harness connector
GroundCondition Voltage (Approx.)
Connector Terminal
M123 118Depressed brake pedal Battery voltage
Released brake pedal 0 V
Page 4701 of 5121
![NISSAN TEANA 2008 Service Manual TM-228
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0730 BELT DAMAGE
P0730 BELT DAMAGE
DescriptionINFOID:0000000003806403
TCM selects the gear ratio using the engine load (throttle position), the primary pu NISSAN TEANA 2008 Service Manual TM-228
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0730 BELT DAMAGE
P0730 BELT DAMAGE
DescriptionINFOID:0000000003806403
TCM selects the gear ratio using the engine load (throttle position), the primary pu](/img/5/57391/w960_57391-4700.png)
TM-228
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0730 BELT DAMAGE
P0730 BELT DAMAGE
DescriptionINFOID:0000000003806403
TCM selects the gear ratio using the engine load (throttle position), the primary pulley revolution speed, and
the secondary pulley revolution speed as input signals. Then it changes the operating pressure of the primary
pulley and the secondary pulley and changes the groove width of the pulley.
DTC LogicINFOID:0000000003806404
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Make sure that output voltage of CVT fluid temperature sensor is within the range specified below.
4. Start engine and maintain the following conditions for at least 30 consecutive seconds.
Is
“P0730 BELT DAMG” detected?
YES >> Go to TM-228, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806405
1.CHECK DTC
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Self Diagnostic Results” mode for “TRANSMISSION”.
Are any DTC displayed?
YES - 1 (DTC for “P0730 BELT DAMG” is displayed)>>Replace the transaxle assembly. Refer to TM-332,
"Exploded View".
YES - 2 (DTC except for “P0730 BELT DAMG” is displayed)>>Check the DTC detected item. Refer to TM-
204, "CONSULT-III Function (TRANSMISSION)".
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0730 BELT DAMGUnexpected gear ratio is de-
tected.Transaxle assembly
ATF TEMP SEN : 1.0 – 2.0 V
If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid)
Start test from 0 km/h (0 MPH)
Constant acceleration : Keep 30 sec or more
VEHICLE SPEED : 10 km/h (6 MPH) or more
ACC PEDAL OPEN : More than 1.0/8
RANGE : “D” position
ENG SPEED : 450 rpm or more
Page 4715 of 5121
![NISSAN TEANA 2008 Service Manual TM-242
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0840 TRANSMISSION FLUID PRESSURE SENSOR A (SEC PRESSURE SEN-
SOR)
P0840 TRANSMISSION FLUID PRESSURE SENSOR A (SEC PRESSURE
SENSOR)
DescriptionINFOID:00000 NISSAN TEANA 2008 Service Manual TM-242
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0840 TRANSMISSION FLUID PRESSURE SENSOR A (SEC PRESSURE SEN-
SOR)
P0840 TRANSMISSION FLUID PRESSURE SENSOR A (SEC PRESSURE
SENSOR)
DescriptionINFOID:00000](/img/5/57391/w960_57391-4714.png)
TM-242
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0840 TRANSMISSION FLUID PRESSURE SENSOR A (SEC PRESSURE SEN-
SOR)
P0840 TRANSMISSION FLUID PRESSURE SENSOR A (SEC PRESSURE
SENSOR)
DescriptionINFOID:0000000003806436
The transmission fluid pressure sensor A (secondary pressure sensor) detects secondary pressure of CVT
and sends the signal to the TCM.
DTC LogicINFOID:0000000003806437
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Make sure that output voltage of line temperature sensor is within the range specified below.
4. Start engine and wait for at least 5 consecutive seconds.
With GST
Follow the procedure “With CONSULT-III”.
Is
“P0840 TR PRS SENS/A CIRC” detected?
YES >> Go to TM-242, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806438
1.CHECK INPUT SIGNAL
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 2.
2.CHECK POWER AND SENSOR GROUND
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0840 TR PRS SENS/A CIRCSignal voltage of the transmis-
sion fluid pressure sensor A
(secondary pressure sensor) is
too high or too low while driving. Transmission fluid pressure
sensor A (secondary pres-
sure sensor)
Harness or connectors
(Switch circuit is open or
shorted.)
ATF TEMP SEN : 1.0 – 2.0 V
If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid)
TCM connector
GroundCondition Voltage (Approx.)
Connector Terminal
F23 15 “N” position idle 1.0 V
Page 4720 of 5121
![NISSAN TEANA 2008 Service Manual P0868 SECONDARY PRESSURE DOWN
TM-247
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P0868 SECONDARY PRESSURE DOWN
DescriptionINFOID:0000000003806444
The pressure control solenoi NISSAN TEANA 2008 Service Manual P0868 SECONDARY PRESSURE DOWN
TM-247
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
P0868 SECONDARY PRESSURE DOWN
DescriptionINFOID:0000000003806444
The pressure control solenoi](/img/5/57391/w960_57391-4719.png)
P0868 SECONDARY PRESSURE DOWN
TM-247
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
P0868 SECONDARY PRESSURE DOWN
DescriptionINFOID:0000000003806444
The pressure control solenoid valve B (secondary pressure solenoid valve) regulates the secondary pressure
to suit the driving condition in response to the signal sent from the TCM.
DTC LogicINFOID:0000000003806445
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Make sure that output voltage of CVT fluid temperature sensor is within the range specified below.
4. Start engine and maintain the following conditions for at least 10 consecutive seconds.
Is
“P0868 SEC/PRESS DOWN” detected?
YES >> Go to TM-247, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806446
1.CHECK LINE PRESSURE
Perform line pressure test. Refer to TM-308, "
Inspection and Judgment".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts. Refer to TM-308, "
Inspection and Judgment".
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0868 SEC/PRESS DOWNSecondary fluid pressure is too
low compared with the com-
manded value while driving. 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 pres-
sure sensor)
Line pressure control system
ATF TEMP SEN : 1.0 – 2.0 V
If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid)
VEHICLE SPEED (accelerate
slowly): 0 → 50 km/h (31 MPH)
ACC PEDAL OPEN : 0.5/8 – 1.0/8
RANGE : “D” position