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Home >> Infiniti >> 2015 >> QX50 Base, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (Introduction Diagnostic Trouble Codes (DTCS) And Symptom Tests) >> System Description >> A/T Control System >> Component Description
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Component Description

Name Function
TCM The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The TCM controls the A/T.
Transmission range switch DESCRIPTION 
Output speed sensor DESCRIPTION 
Input speed sensor 1 DESCRIPTION 
Input speed sensor 2
A/T fluid temperature sensor DESCRIPTION 
Input clutch solenoid valve DESCRIPTION 
Front brake solenoid valve DESCRIPTION 
Direct clutch solenoid valve DESCRIPTION 
High and low reverse clutch solenoid valve DESCRIPTION 
Low brake solenoid valve DESCRIPTION 
Anti-interlock solenoid valve DESCRIPTION 
2346 brake solenoid valve DESCRIPTION 
Torque converter clutch solenoid valve DESCRIPTION 
Line pressure solenoid valve DESCRIPTION 
Accelerator pedal position sensor DESCRIPTION 
Throttle position sensor
Manual mode switch DESCRIPTION 
Starter relay DESCRIPTION 
A/T CHECK indicator lamp When the ignition switch is pushed to the ON position, the light comes on for 2 seconds.
Stop lamp switch DESCRIPTION
ECM SYSTEM DESCRIPTION
BCM SYSTEM DESCRIPTION
Unified meter and A/C amp. SYSTEM DESCRIPTION
ABS actuator and electric unit (control unit) SYSTEM DESCRIPTION
Wheel sensor DESCRIPTION
Yaw rate/side G sensor DESCRIPTION