Test NTC-11A - Checking Park/Neutral Switch

WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, 1995 Dodge Dakota, and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS section at the end of this article.

Using scan tool, read park/neutral switch input state. While watching scan tool display, move gear selector in and out of Park and Reverse. If scan tool displays P/N and D/R, system is functioning properly. Test is complete.
If scan tool does not display P/N and D/R, turn ignition off. Place gear selector in Park. Disconnect Powertrain Control Module (PCM) connector. Using scan tool in ohmmeter mode, check resistance of PCM connector terminal No. 30, park/neutral switch sense circuit (Brown/Orange wire on AB body; Brown/Yellow wire on AN body; Black/White wire on BR body). Observe scan tool display while moving gear selector in and out of Park and Reverse.
If display switches from less than 5 ohms to more than 5 ohms, replace PCM. Perform TEST VER-2. If display does not switch from less than 5 ohms to more than 5 ohms, check if display always stays less than 5 ohms. If display always stays less than 5 ohms, repair short to ground in Brown/Orange wire, Brown/Yellow wire or Black/White wire. Perform TEST VER-2. If display does not always stay less than 5 ohms, go to next step.
Disconnect park/neutral switch connector. Using external ohmmeter, check resistance of sense circuit (Brown/Orange wire on AB body; Brown/Yellow wire on AN body; Black/White wire on BR Body) between park/neutral switch connector and PCM connector terminal No. 30. If resistance is less than 10 ohms, replace park/neutral switch. Perform TEST VER-2. If resistance is more than 10 ohms, repair open Brown/Orange wire, Brown/Yellow wire or Black/White wire. Perform TEST VER-2.