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, and 1995 Dodge Dakota. 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.