Nissan Sentra manuals

Nissan Sentra Service Manual: System description

Component parts

CVT CONTROL SYSTEM

CVT CONTROL SYSTEM : Component Parts Location


No.

Component

Function

1 ECM Mainly transmits the following signal to TCM via CAN communication.
  • Engine and CVT integrated control signal

NOTE:

General term for the communication (torque-down permission, torquedown request, etc.) exchanged between the ECM and TCM.

  • Engine speed signal
  • Accelerator pedal position signal
  • Closed throttle position signal
  • N idle instruction signal

Mainly receives the following signals from TCM via CAN communication.

  • N idle instruction signal
  • Malfunction indicator lamp (MIL) signal

Refer to EC-15, "ENGINE CONTROL SYSTEM : Component Parts Location" for detailed installation location.

2 TCM TM-75, "CVT CONTROL SYSTEM : TCM"
3 BCM Mainly transmits the following signal to TCM via CAN communication.
  • Stop lamp switch signal
  • Turn indicator signal

Refer to BCS-6, "BODY CONTROL SYSTEM : Component Parts Location" (With intelligent key system) or BCS-77, "BODY CONTROL SYSTEM : Component Parts Location" (Without intelligent key system) for detailed installation location.

4 ABS actuator and electric unit (control unit) Mainly transmits the following signal to TCM via CAN communication.
  • Vehicle speed signal (ABS)
  • ABS operation signal
  • TCS operation signal
  • VDC operation signal
  • ABS malfunction signal

Refer to BRC-7, "Component Parts Location" for detailed installation location.

5 Combination meter Mainly transmits the following signal to TCM via CAN communication.
  • Overdrive control switch signal

Mainly receives the following signals from TCM via CAN communication.

  • Shift position indicator signal
  • OD OFF indicator lamp signal

Refer to MWI-5, "METER SYSTEM : Component Parts Location" for detailed installation location.

6 ECO mode switch DMS-24, "ECO Mode Switch"
7 SPORT mode switch DMS-61, "SPORT Mode Switch"
8 Overdrive control switch TM-82, "CVT CONTROL SYSTEM : Overdrive Control Switch"
9 G sensor TM-81, "CVT CONTROL SYSTEM : G Sensor"
10 Transmission range switch TM-75, "CVT CONTROL SYSTEM : Transmission Range Switch"
11 Primary speed sensor TM-76, "CVT CONTROL SYSTEM : Primary Speed Sensor"
12 CVT unit connector —
13 Output speed sensor TM-77, "CVT CONTROL SYSTEM : Output Speed Sensor"
14 Secondary speed sensor TM-76, "CVT CONTROL SYSTEM : Secondary Speed Sensor"
15 Control valve ROM assembly* TM-75, "CVT CONTROL SYSTEM : ROM Assembly"
CVT fluid temperature sensor* TM-78, "CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor"
Secondary pressure sensor* TM-78, "CVT CONTROL SYSTEM : Secondary Pressure Sensor"
Primary pressure solenoid valve* TM-79, "CVT CONTROL SYSTEM : Primary Pressure Solenoid Valve"
Low brake solenoid valve* TM-79, "CVT CONTROL SYSTEM : Low Brake Solenoid Valve"
High clutch & reverse brake solenoid valve* TM-80, "CVT CONTROL SYSTEM : High Clutch & Reverse Brake Solenoid Valve"
Torque converter clutch solenoid valve* TM-80, "CVT CONTROL SYSTEM : Torque Converter Clutch Solenoid Valve"
Line pressure solenoid valve* TM-81, "CVT CONTROL SYSTEM : Line Pressure Solenoid Valve"

*: These components are included in control valve assembly.

CVT CONTROL SYSTEM : TCM

CVT CONTROL SYSTEM : ROM Assembly


CVT CONTROL SYSTEM : ROM Assembly

CVT CONTROL SYSTEM : Transmission Range Switch


CVT CONTROL SYSTEM : Transmission Range Switch

CVT CONTROL SYSTEM : Primary Speed Sensor


CVT CONTROL SYSTEM : Primary Speed Sensor


CVT CONTROL SYSTEM : Secondary Speed Sensor


CVT CONTROL SYSTEM : Secondary Speed Sensor


CVT CONTROL SYSTEM : Output Speed Sensor


CVT CONTROL SYSTEM : Output Speed Sensor


CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor


CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor


CVT CONTROL SYSTEM : Secondary Pressure Sensor


CVT CONTROL SYSTEM : Secondary Pressure Sensor


CVT CONTROL SYSTEM : Primary Pressure Solenoid Valve


CVT CONTROL SYSTEM : Primary Pressure Solenoid Valve


NOTE:

CVT CONTROL SYSTEM : Low Brake Solenoid Valve


CVT CONTROL SYSTEM : Low Brake Solenoid Valve


NOTE:

CVT CONTROL SYSTEM : High Clutch & Reverse Brake Solenoid Valve


CVT CONTROL SYSTEM : High Clutch & Reverse Brake Solenoid Valve


NOTE:

CVT CONTROL SYSTEM : G Sensor


CVT CONTROL SYSTEM : G Sensor


CVT CONTROL SYSTEM : Overdrive Control Switch


CVT CONTROL SYSTEM : Overdrive Control Switch

CVT CONTROL SYSTEM : OD OFF Indicator Lamp


CVT CONTROL SYSTEM : OD OFF Indicator Lamp

DESIGN/PURPOSE

The OD OFF indicator lamp notifies the driver that the shift control of transaxle is in OD OFF.

BULB CHECK


BULB CHECK

For two seconds after the ignition switch is turned ON.

SIGNAL PATH

LIGHTING CONDITION

When all of the following conditions are satisfied.

SHUTOFF CONDITION

CVT CONTROL SYSTEM : Shift Position Indicator

PURPOSE

The shift position indicator displays the shift position of transaxle.

SIGNAL PATH


SIGNAL PATH

LIGHTING CONDITION

Ignition switch: ON

SHUTOFF CONDITION

Ignition switch: Other than ON

SHIFT LOCK SYSTEM

SHIFT LOCK SYSTEM : Component Parts Location

COMPONENT DESCRIPTION


COMPONENT DESCRIPTION

No.

Component

Function

1 Shift lock solenoid It operates according to the signal from the stop lamp switch and moves the lock lever.
2 Park position switch It detects that the selector lever is in “P” position.
3 Shift lock release button Forcibly releases the shift lock when pressed.
4 Stop lamp switch
  • The stop lamp switch turns ON when the brake pedal is depressed.
  • When the stop lamp switch turns ON, the shift lock solenoid is energized.
Preparation
Special Service Tools The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here. *: The O-ring as a unit part is set as a SST. Commercial Service ...

Structure and operation
TRANSAXLE TRANSAXLE : Cross-Sectional View Converter housing Oil pump Counter drive gear Control valve Oil pan Primary pulley Steel belt Secondary pulley Planetary gear (auxi ...

Other materials:

Heater operation
This mode is used to direct heated air to the foot outlets. Some air also flows from the defrost outlets and the side vent outlets. Press the button to the OFF position for normal heating. Press the air flow control button. Turn the fan control dial to the desired position. Tur ...

A-bag branch line circuit
Diagnosis procedure Warning: Always observe the following items for preventing accidental activation. Before servicing, turn ignition switch off, disconnect battery negative terminal, and wait 3 minutes or more. (To discharge backup capacitor.) Never use unspecified tester or other me ...

Body alignment
Body Center Marks A mark has been placed on each part of the body to indicate the vehicle center. When repairing parts damaged by an accident which might affect the vehicle frame (members, pillars, etc.), more accurate and effective repair will be possible by using these marks together with ...

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