Test NTC-10A - Checking Park/Neutral Switch
WARNING: This page is about a different car, the 1994 Plymouth Acclaim and 1994 Dodge Spirit. 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 DIRECTORY TABLE
. For wiring diagrams, see WIRING DIAGRAMS
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- Using DRB, read park/neutral switch input state. While watching DRB 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 DRB in ohmmeter mode. Using DRB, check resistance on PCM connector terminal No. 30 (Brown/Yellow wire). Observe DRB 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 Brown/Yellow 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 an external ohmmeter, check resistance of Brown/Yellow wire between park/neutral switch connector and PCM connector terminal No. 30. If resistance is less than 5 ohms, replace park/neutral switch. Perform TEST VER-2. If resistance is more than 5 ohms, repair open in Brown/Yellow wire Perform TEST VER-2.