Test NS-6C - Correcting No Response Condition
WARNING: This page is about a different car, the 1995 Jeep Grand Cherokee. 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
in this article. For wiring diagram, see WIRING DIAGRAMS
section at the end of this article.
- Disconnect fuel pump harness connector and O2S connector. Using scan tool in ohmmeter mode, check resistance of fuel pump relay, output circuit (Orange/Dark Blue wire) at Power Distribution Center (PDC). If resistance is less than 5 ohms, repair short to ground in Orange/Dark Blue wire. Replace fuse. Perform TEST VER-1 .
- If resistance is more than 5 ohms, use scan tool to check resistance of O2S connector, relay output circuit (White wire). If resistance is less than 5 ohms, replace O2S. Replace fuse. Perform TEST VER-1 . If resistance is more than 5 ohms, replace fuel pump. Replace fuse. Perform TEST VER-1 .
- Disconnect fuel pump harness connector. Using scan tool in ohmmeter mode, check resistance of fuel pump relay connector, fuel pump relay output circuit (Dark Green/Black wire). If resistance is less than 5 ohms, repair short to ground in Dark Green/Black wire. Replace fuse. Perform TEST VER-2 . If resistance is more than 5 ohms, replace fuel pump. Replace fuse. Perform TEST VER-1 .