Electrical diagram of automatic transmission Dodge Caravan

1. Automatic transmission wiring harness connector:

*White-black – Torque converter lockup
* Red – Power (12 V)
* Black – Mass
*Green-White – Transmission Fluid Temperature Sensor
* Gray-black – Input shaft speed sensor
* Light green – Output shaft speed sensor
* White – Output signal from the output shaft speed sensor
* Blue – Shift Solenoid 1-2
*Brown – 2-3 Shift Solenoid
*Orange – 3-4 Shift Solenoid
*White-yellow – Torque converter lock-up solenoid
* Orange-brown – Selector Position Sensor

2. Torque converter connector:

* Purple – Diagnostic port
* Black – Mass

3. Other connections:

* Weight – To the car body
* Power (12 V) – From a rechargeable battery
* P-N switch – Included in the gear shifter
* SPD signal – From the engine control unit

Legend:

* Shift solenoids control the engagement/disengagement of their respective clutch packs for shifting gears.
* The torque converter lock-up solenoid locks the torque converter at high speeds to improve transmission efficiency.
* Input and output shaft speed sensors measure the rotation speed of the shafts and transmit this information to the automatic transmission control module.
* The selector position sensor tells the automatic transmission control module which gear is selected by the driver.
* The P-N switch determines whether the transmission is in Park or Neutral.
* The SPD signal (engine revolutions per minute) is used by the automatic transmission control module to determine the moment of gear shifting and adjust the transmission fluid pressure.

Thanks for reading!