Wiring Diagram 89 Dodge Ram. 12 volts ecu power wire red wire to battery terminal. You can also run a wire with a fuse from the battery to the positive side of the coil to check the system.
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Before you dive in with a multi meter you will want to obtain a free wiring diagram for your specific modelyou may need to locate a specific color wire and its exact location.
It consists of guidelines and diagrams for various types of wiring methods along with other products like lights windows and so forth. Wiring diagram 89 dodge ram. Dodge electrical wiring connectors. Answered in 4 hours by.