Test TC-31A - Injector #4 Control CKT (Injectors No. 5 & 8) (DTC 27)
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. 13, injector No. 4 driver circuit (Light Blue/Brown 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, using scan tool in ohmmeter mode, check resistance of PCM terminal No. 13, injectors No. 5 and 8 driver circuit (Light Blue/Brown wire). If resistance is more than 5 ohms, repair open Light Blue/Brown wire. Perform TEST VER-2.
- If resistance is less than 5 ohms, disconnect injector No. 5 connector. Check resistance of PCM terminal No. 13, injectors No. 5 and 8 driver circuit (Light Blue/Brown wire). If resistance is more than 5 ohms, replace injector No. 5. Perform TEST VER-2.
- If resistance is less than 5 ohms, disconnect injector No. 8 connector. Check resistance of PCM terminal No. 13, injectors No. 5 and 8 driver circuit (Light Blue/Brown wire). If resistance is more than 5 ohms, replace injector No. 8. Perform TEST VER-2. If resistance is less than 5 ohms, repair short to ground in Light Blue/Brown wire. Perform TEST VER-2.