Nissan automatic transmission wiring diagram (general)
Note: The diagram below is a general guide and may vary depending on your specific Nissan model and year. For more accurate information, consult your specific vehicle’s repair manual.
Transmission Control Module (TCM)
* Controls the operation of the automatic transmission, including gear shifting, torque converter locking, etc.
* Connects to various sensors and solenoids to collect data and control automatic transmission components.
Sensors
* Input shaft speed sensor
* Output shaft speed sensor
* Gear selector position sensor
* Automatic transmission fluid pressure sensor
* Automatic transmission fluid temperature sensor
Solenoids
* Torque converter lock-up solenoid
* Shift Solenoid
* Pressure control solenoid
Other components
* Torque converter
* Clutches
* Steel wheels
* Automatic transmission housing
* Automatic transmission pan
Electrical diagrams
* Power circuits: Power the automatic transmission components with voltage from the battery.
*Control Circuits: Conveys signals between the TCM, sensors and solenoids.
* Ground Circuits: Provide a return path for electrical signals.
Connectors and wiring
* Connectors connect various components to the TCM.
* Wiring transmits electrical signals throughout the wiring harness.
Troubleshooting
If problems arise with your automatic transmission, it is important to follow the troubleshooting procedures recommended by the manufacturer. This may include checking trouble codes, diagnosing sensors, solenoids and other components.