Test TC-28B - Injector #1 Control CKT (Injectors No. 1 & 10)
WARNING: This page is about a different car, the 1995 Dodge Pickup 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 diagrams, see WIRING DIAGRAMS
section at the end of this article.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Using an external ohmmeter, check resistance between PCM terminals No. 16, injector No. 1 driver circuit (White/Dark Blue wire) and No. 57, ASD relay output circuit (Dark Green/Orange wire). If resistance is 6-18 ohms, replace PCM. Perform TEST VER-2.
- If resistance is not 6-18 ohms, check resistance of PCM terminal No. 16, injectors No. 1 and 10 driver circuit (White/Dark Blue wire) using scan tool in ohmmeter mode. If resistance is more than 5 ohms, repair open White/Dark Blue wire. Perform TEST VER-2.
- If resistance is less than 5 ohms, disconnect injector No. 1 connector. Check resistance of PCM terminal No. 16, injectors No. 1 and 10 driver circuit (White/Dark Blue wire). If resistance is more than 5 ohms, replace injector No. 1. Perform TEST VER-2.
- If resistance is less than 5 ohms, disconnect injector No. 10 connector. Check resistance of PCM terminal No. 16, injectors No. 1 and 10 driver circuit (White/Dark Blue wire). If resistance is more than 5 ohms, replace injector No. 10. Perform TEST VER-2. If resistance is less than 5 ohms, repair short to ground in White/Dark Blue wire. Perform TEST VER-2.