Where is the torque converter clutch circuit dodge ram 318?

There isn't a "torque converter clutch circuit" in the traditional sense in a Dodge Ram with a 318 engine. The 318 (5.2L) in Dodge Rams of that era (generally pre-2000s) typically used a hydraulically controlled torque converter, not a lock-up torque converter clutch. Lock-up clutches became more common in later models and larger engines to improve fuel economy at highway speeds.

While there's no dedicated circuit for a *clutch*, the operation of the torque converter is controlled by the transmission's hydraulic system. This system involves:

* Transmission Control Module (TCM): This electronic control unit manages shift points and other aspects of transmission operation. While not directly controlling a clutch, it influences the torque converter's behaviour.

* Valve Body: This internal component within the transmission directs the flow of hydraulic fluid to govern the torque converter's operation. It's not a "circuit" in the electrical sense, but a hydraulic circuit.

* Hydraulic Pump: Driven by the transmission, it provides the pressure for the hydraulic system.

To troubleshoot issues related to torque converter performance (like slipping or harsh shifts), you'd need to investigate the transmission's hydraulic system, including the valve body, and potentially the TCM itself, rather than looking for a specific "circuit". The problem would likely be detected via diagnostic trouble codes (DTCs) read by a scanner.