2008 NISSAN TEANA Service Manual

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Page 4753 of 5121

NISSAN TEANA 2008 Service Manual TM-280
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
JCDWM0249GB

Page 4754 of 5121

NISSAN TEANA 2008 Service Manual TCM
TM-281
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JCDWM0250GB

Page 4755 of 5121

NISSAN TEANA 2008 Service Manual TM-282
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
JCDWM0251GB

Page 4756 of 5121

NISSAN TEANA 2008 Service Manual TCM
TM-283
< ECU DIAGNOSIS >[CVT: RE0F10A]
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Fail-safeINFOID:0000000003806489
The TCM has an electrical fail-safe mode. In this mode TCM is operates even if there is an e

Page 4757 of 5121

NISSAN TEANA 2008 Service Manual TM-284
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with throttle position when an unexpected signal is sent from the
out

TM-284
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with throttle position when an unexpected signal is sent from the
output speed sensor (secondary speed sensor) to the TCM. The manual mode is inhibited, and the transaxle
is put in “D”.
Input Speed Sensor (Primary Speed Sensor)
The shift pattern is changed in accordance with 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 manual
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 5000
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 input to TCM, secondary
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 to the TCM, the pressure control solenoid A (line pressure
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 to the TCM, the pressure control solenoid B (secondary pres-
sure 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 to the TCM, the torque converter clutch solenoid valve is
turned OFF to cancel the lock-up.
Step Motor
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 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 TCM. Normal status is restored when turning the ignition switch
OFF to ON after the normal power supply.
DTC Inspection Priority ChartINFOID:0000000003806490
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 displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to TM-208
.
DTC IndexINFOID:0000000003806491
NOTE:
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above

Page 4758 of 5121

NISSAN TEANA 2008 Service Manual TCM
TM-285
< ECU DIAGNOSIS >[CVT: RE0F10A]
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If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN CO

Page 4759 of 5121

NISSAN TEANA 2008 Service Manual TM-286
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
SYSTEM SYMPTOM
SYMPTOM DIAGNOSIS
SYSTEM SYMPTOM
Symptom TableINFOID:0000000003806492
The diagnostics item numbers show the sequence for inspection. Inspect i

Page 4760 of 5121

NISSAN TEANA 2008 Service Manual SYSTEM SYMPTOM
TM-287
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
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4
Slips/Will
Not EngageVehicle cannot be
started from “D” posi-
tion.ON vehicle1. CVT fluid level and st

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