On a 1995 Dodge Ram 1500, the ignition module isn't a separate, easily identifiable component like it is on some older vehicles. Instead, the ignition control function is integrated into the
Powertrain Control Module (PCM). The PCM is usually located under the hood, often near the firewall. It's a relatively large electronic control unit, often black and rectangular.
You won't find a separate "ignition module" to replace; any ignition-related issues would generally require attention to the PCM itself, or other related sensors and wiring.