PG12.jpg 358 hits | 73.93 KB | Posted: 2016-06-06 Original Charge Distribution System... (Posted in: Electrical Modification Diagrams)
ChargePowerDist.jpg 358 hits | 69.32 KB | Posted: 2016-06-06 Modified Charge Power Distribution System. How it's all tied together.... (Posted in: Electrical Modification Diagrams)
3G Charging System.jpg 351 hits | 69.41 KB | Posted: 2016-06-06 This is a charging system diagram from a 1996 EVTM and is the same as mine, perhaps a little neater looking. The only difference is mine has a 175 Amp Mega fuse where this diagram shows a fusible link... (Posted in: Electrical Modification Diagrams)
Engine Compartment Relays.jpg 316 hits | 68.67 KB | Posted: 2016-06-06 This is a diagram of the relays that have been added in modifying the electrical system and their function. Most are contained in a Under hood relay box with the exception of the light and horn control relays. ... (Posted in: Electrical Modification Diagrams)
Diagram2 Headlight Control Wiring Mod.jpg 317 hits | 41.81 KB | Posted: 2016-06-06 This modification eliminates the long wiring path for headlight power which makes them dim and not too effective. With this modification the headlights receive power directly from the battery and use the original high/lo connections as the trigger for the relays.... (Posted in: Electrical Modification Diagrams)
Diagram1 Under Hood Fusebox assignments.jpg 290 hits | 73.9 KB | Posted: 2016-06-06 Added a under hood fuse box in order to eliminate the fusible links that when they fail are hard to find and replace. They also are the cause of electrical fires so this eliminates that possibility also.... (Posted in: Electrical Modification Diagrams)
Horn Modification.jpg 332 hits | 57.85 KB | Posted: 2016-06-06 The original horn wiring was causing a significant voltage drop to the horn due to a long path from the battery over small gauge wire. This gave the horn a real wimpy sound. I modified the wiring by adding a relay that supplied voltage directly from the battery and controlling the relay from the original connection to the horn... (Posted in: Electrical Modification Diagrams)
PG15a.jpg 182 hits | 81.14 KB | Posted: 2016-06-06 The original wiring of the fuse panel feed. Located under dash near left foot. ... (Posted in: Electrical Modification Diagrams)
Page15 Charge Power Distribution Mod.jpg 382 hits | 109.64 KB | Posted: 2016-06-06 The wiring of the fuse panel feed done per Tec. Service Bulletin 86-24-26. Removed the feed that often caused ignition static in the radio. Rerouted feed connected to Fuse 3 of the new Under Hood Fuse box. ... (Posted in: Electrical Modification Diagrams)
Page18 Start Ignition.jpg 221 hits | 81.92 KB | Posted: 2016-06-06 Modified wiring for a MSD ignition system. The 12V Distribution Block on the right side is an addition I made to cut down on wires running all over the engine compartment for everything that requires a hot 12V whenever the ignition key is in Run or Acc. There is one for the left side of the compartment as well as one for the right side. Also there are Grounding blocks through out the truck to supply improved grounding system for various functions rather than depend on the body for grounding.... (Posted in: Electrical Modification Diagrams)
The only difference is mine has a 175 Amp Mega fuse where this diagram shows a fusible link...
