Diagnostic Check
WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, and 1995 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
PCM is tested using DRB. See appropriate testing in TESTS W/CODES - 5.2L CNG article in the ENGINE PERFORMANCE section.