Test NTC-11A - Checking Park/Neutral Switch
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. 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 diagrams, see WIRING DIAGRAMS
section.
- Using scan tool, read Park/Neutral (P/N) switch input state. While watching scan tool display, move gear selector in and out of Park and Reverse positions. If display shows P/N and D/R, system is functioning correctly. Test is complete. If display does not show P/N and D/R, go to next step.
- Turn ignition off. Place gear selector in Park position. Disconnect Powertrain Control Module (PCM) connector. Put scan tool in ohmmeter mode. Using scan tool, check resistance of PCM connector terminal No. 30 (Black/Orange wire). Observe scan tool display while moving gear selector in and out of Park and Reverse positions.
- 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 Black/Orange wire. Perform TEST VER-2. If display does not always stay less than 5 ohms, go to next step.
- Disconnect P/N switch connector. Using an external ohmmeter, check resistance of Black/Orange wire between P/N switch connector and PCM connector terminal No. 30. If resistance is less than 5 ohms, replace P/N switch. Perform TEST VER-2. If resistance is more than 5 ohms, repair open Black/Orange wire. Perform TEST VER-2.