Test TC-37B - Injector #1 Control Circuit
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.
- Turn ignition off. Disconnect injector No. 1 connector. Using an external ohmmeter, check resistance between injector terminals. If resistance is not 3.5-5.5 ohms, replace injector. Perform TEST VER-2. If resistance is 3.5-5.5 ohms, turn ignition on.
- Using scan tool, actuate injector No. 1. Using scan tool in voltmeter mode, check voltage on injector No. 1 connector, Auto Shutdown (ASD) output circuit (Dark Green/Orange wire). If voltage is less than 10 volts, repair open Dark Green/Orange wire. Perform TEST VER-2. If voltage is more than 10 volts, turn ignition off.
- Disconnect Powertrain Control Module (PCM) connector. Using an external ohmmeter, check resistance of injector No. 1 driver circuit (White/Brown wire on AB body; White/Dark Blue wire on AN and BR bodies) between injector connector (harness side) and PCM connector terminal No. 16. If resistance is more than 5 ohms, repair open White/Brown wire, Dark Blue wire or Light Blue wire. Perform TEST VER-2.
- If resistance is less than 5 ohms, using scan tool in ohmmeter mode, check resistance of PCM terminal No. 16 (White/Brown wire on AB, AN and BR bodies). If resistance is less than 5 ohms, repair short to ground in White/Brown wire or Light Blue wire. Perform TEST VER-2. If resistance is more than 5 ohms, replace PCM. Perform TEST VER-2.