Where is the Automatic Transmission Controller-Transmission Solenoid Relay on a 1993 Dodge Caravan?

The Automatic Transmission Controller-Transmission Solenoid Relay on a 1993 Dodge Caravan isn't a single, easily identifiable component like a standalone relay. Instead, the transmission control system is integrated into the Powertrain Control Module (PCM), also known as the Engine Control Module (ECM) in some Chrysler vehicles of that era. The solenoids themselves are *inside* the transmission.

The PCM/ECM receives input from various sensors and uses this information to control the transmission's solenoids, which in turn control the transmission's shifting. There isn't a separate relay specifically for the transmission solenoids that you can easily locate and replace. Problems typically stem from issues *within* the PCM, faulty transmission solenoids (requiring transmission disassembly), or related wiring harnesses.

To troubleshoot transmission problems, you'll need to consult a repair manual specific to your 1993 Dodge Caravan's engine and transmission. A diagnostic scan tool capable of reading transmission codes is essential. A mechanic with experience working on Chrysler vehicles from that period will be best equipped to diagnose and repair transmission problems.