Test NS-5B - Inspecting Fuel Pump
WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 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 diagram, see WIRING DIAGRAMS
section at the end of this article.
- Turn ignition off. Remove fuel pump relay. Turn ignition on. Using scan tool in voltmeter mode, check voltage on fuel pump relay connector, fused ignition switch output circuit (Dark Blue wire on AB body; Light Green/Black wire on BR body).
- If voltage is less than 10 volts, repair open Dark Blue wire, Light Green/Black wire or Light Blue/Red wire. Perform TEST VER-1. If voltage is more than 10 volts, check resistance across fuel pump relay terminals using an external ohmmeter. See Fig 1 . If resistance is more than 100 ohms, replace fuel pump relay. Perform TEST VER-1. If resistance is less than 100 ohms, repair open Dark Blue/Yellow wire. Perform TEST VER-1.