Starter wires 74A and 74B - G503 Military Vehicle Message Forums Jun 19, 2009According to the wiring diagram 74A and 74B attach to the same point on the starter motor. 74A comes from pin I on the engine side connector of the PCB and 74B runs to pin S on the STE/ICE connector. When I first got my truck and was fighting electrical problems I took the long fold-out wiring diagram from the TM to a Kinkos and had it enlarged Humvee DIY Upgrade – How to Install a Start Key in a HMMWV Jun 10, 2017Dielectric grease – Coat all electrical connections to keep out water and prevent corrosion. Wire terminal crimper – To attach the ring terminals and Packard connectors to the ignition switch. Step drill bit to open up the ignition switch hole and to make room for the key in the switch. Electrical tape. Ring terminals – bulk pack or heat Help! My HMMWV Won’t Start! Humvee Wait Light Glow Plug and Start Mar 01, 2017People make assumptions as to why their HMMWV won’t start and miss the true cause. This can lead to an expensive cycle of buying and replacing parts but still not get the Hummer running. What is the Start Control Box? The Start Control Box controls the various electrical systems required to start the HMMWV. The early models were called Related searches for humvee starter wiring diagram humvee starter rebuild kithmmwv startermilitary ignition switchsigelei humvee 80 kit 80whumvee 80sigelei humvee 80humvee vapepush button starter