Test NTC-12A - Checking Pcm Grounds & Power Circuits
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.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Using scan tool in ohmmeter mode, check resistance of PCM connector terminal No. 11, ground circuit (Black/Tan wire). If resistance is more than 5 ohms, repair open Black/Tan wire. Perform TEST VER-2. If resistance is less than 5 ohms, go to next step.
- Using scan tool, check resistance of PCM connector terminal No. 12, ground circuit (Black/Tan wire). If resistance is more than 5 ohms, repair open Black/Tan wire. Perform TEST VER-2. If resistance is less than 5 ohms, go to next step.
- Turn ignition on. Using scan tool in voltmeter mode, check voltage on PCM connector terminal No. 9, fused ignition switch output circuit (Dark Blue wire on AB and AN bodies; Light Green/Black on BR body). If voltage is less than 10 volts, repair open Dark Blue wire, Light Green/Black wire or Light Blue wire. Perform TEST VER-2. If voltage is more than 10 volts, turn ignition off. Reconnect PCM connector. PCM grounds and power circuits are okay. Test is complete.