Knowledge Base - Electrical

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Electrical:

12-volt and 24-volt Systems
- Battery Connections
- Jump-Starting
Alternator
Batteries
- Checking Batteries
Battery Cables
- Running Auxiliary Battery Cables to Rear of Truck
EESS
- EESS Information
- EESS Part Numbers
Electrical Issues in HMMWVs Including the Horn
Gauges - See Interior
Grommets for Passing Wires Through the Firewall
Grounding
- Engine Ground Point
- Ground Harness Installation - An improvement over early HMMWV ground harnesses
  - As a MS Word document
  - As a PDF document
- Grounding as a Source of Electrical Problems
Horn
Invertors
Lights
- Daytime Running Lights
- Lamp Replacement Guide - From Sylvania.com
- Lights and Auxiliary Lighting - By Bob Brauch
- Military Blackout Lights
- Military Marker Lights - Diagrams
- Military Marker Lights and Turn Signal Modification (among other things) - By Allan Madar.
- Turn Signals
  - Flasher Units
Protective Control Box (PCB) - Requires Adobe Reader (Acrobat)
Starter - By Allan Madar
- Bracket (Military) - From the U.S. Army. Requires Adobe Reader (Acrobat)
- Cleaning Starter Solenoid Contacts
- "Marinizing"
- Replacing the Starter
- Starter Motor Installation Tool - From the U.S. Army. Requires Adobe Reader (Acrobat)
- Troubleshooting Starter Problems
Voltage
- Voltage Drops at Higher Speeds
Windshield Wipers
- Re-Positioning - If they've slipped out of position.
Wiring
- 4L80E Transmission Internal Wiring Harness
- Basic Electrical Theory - Ohm's Law, Formulas & Equations
- Running Wires Through the Firewall
- Trailer/Towing Connector Wires
- Wire Gauge and Current Limits
Wiring Diagrams
- Dash Lights Wiring Diagram
- For M998A2
- Wiring Connector Diagrams - Provided by Mark Rozak

The Hummer Knowledge Base is a collection of informative posts from the Hummer Network forums and mailing lists, contributed material and links to outside web sites.
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