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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (Introduction) (Exc Hybrid) >> System Description >> Component Parts >> A/T Control System >> Component Parts Location

Component Parts Location

Fig 1: A/T Control System Component Parts Location
GNSJSDIA4291ZZ-291Courtesy of NISSAN NORTH AMERICA, INC.
  A/T shift selector assembly   Transmission assembly    
No. Component Function
  Chassis control module Mainly transmits the following signal to TCM via CAN communication.
  • Drive mode signal

Refer to COMPONENT PARTS LOCATION for detailed installation location.
  Combination meter Mainly transmits the following signal to TCM via CAN communication.
  • Vehicle speed signal
  • Manual mode signal
  • Non-manual mode signal
  • Manual mode upshift signal
  • Manual mode downshift signal
  • Paddle shifter upshift signal*1
  • Paddle shifter downshift signal*1

Mainly receives the following signals from TCM via CAN communication.
  • Shift position signal
  • Manual mode shift refusal signal

Refer to COMPONENT PARTS LOCATION for detailed installation location.
  Paddle shifter (down)*1 PADDLE SHIFTER 
  Paddle shifter (up)*1 PADDLE SHIFTER 
  Selector lever position indicator SELECTOR LEVER POSITION INDICATOR 
  Drive mode select switch DRIVE MODE SELECT SWITCH
  NAVI control unit NAVI CONTROL UNIT
  Display control unit Mainly transmits the following signal to TCM via CAN communication.*3
  • Curve signal
  • Road data signal
  • Vehicle speed signal
  • NAVI shift control switch signal

Mainly receives the following signals from TCM via CAN communication.*3
  • NAVI shift control status signal

Refer to COMPONENT PARTS LOCATION for detailed installation location.
  BCM Mainly transmits the following signal to TCM via CAN communication.
  • Stop lamp switch signal

Refer to COMPONENT PARTS LOCATION for detailed installation location.
  ECM Mainly transmits the following signal to TCM via CAN communication.
  • Engine and A/T integrated control signal
    NOTE:

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

  • Engine speed signal
  • Engine coolant temperature signal
  • Accelerator pedal position signal
  • Closed throttle position signal
  • Wide open throttle position signal
  • ASCD OD cancel request signal
  • NAVI shift control indication request signal*3

Refer to COMPONENT PARTS LOCATION for detailed installation location.
  ABS actuator and electric unit (control unit) Mainly transmits the following signal to TCM via CAN communication.
  • ABS operation signal
  • TCS gear keep request signal
  • A/T shift schedule change demand signal
  • Side G sensor signal

Refer to COMPONENT PARTS LOCATION for detailed installation location.
  Manual mode switch Position select switch (up) MANUAL MODE SWITCH 
  Position select switch (down)
  Mode select switch
  A/T assembly connector -
  Output speed sensor OUTPUT SPEED SENSOR 
  Control valve & TCM TCM*2 TCM 
Transmission range switch*2 TRANSMISSION RANGE SWITCH 
Input speed sensor 1, 2*2 INPUT SPEED SENSOR 
A/T fluid temperature sensor*2 A/T FLUID TEMPERATURE SENSOR 
Input clutch solenoid valve*2 INPUT CLUTCH SOLENOID VALVE 
Direct clutch solenoid valve*2 DIRECT CLUTCH SOLENOID VALVE 
High and low reverse clutch solenoid valve*2 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE 
Front brake solenoid valve*2 FRONT BRAKE SOLENOID VALVE 
Low brake solenoid valve*2 LOW BRAKE SOLENOID VALVE 
2346 brake solenoid valve*2 2346 BRAKE SOLENOID VALVE 
Anti-interlock solenoid valve*2 ANTI-INTERLOCK SOLENOID VALVE 
Line pressure solenoid valve*2 LINE PRESSURE SOLENOID VALVE 
Torque converter clutch solenoid valve*2 TORQUE CONVERTER CLUTCH SOLENOID VALVE 

*1: With paddle shifter

*2: These components are included in control valve & TCM.

*3: For North America