Charging System: Technical Service Bulletins

• Charging System - Diagnosis
  • Overview
  • I. General Information
    • Overview
    • 1. Initial Checks
      • A. Check Battery Condition
      • B. Check Generator Belt
      • C. Check Fuses & Wiring/Connector Condition
      • D. Static Current Draw Test
      • E. Pre-Excitation Resistor (or Relay)
  • II. Charging System Tests
    • 1. Circuit Resistance Test
      • A. Test Procedure Using DVOM
      • B. Test Procedure Using Sun Volt Ampere Tester
    • 2. Generator Current Output Test
      • A. Test Procedure Using A DVOM & Ammeter
      • B. Test Procedure Using A VAT-40 or Equivalent Tester
    • 3. Voltage Regulator Test
      • A. Test Procedure Using DVOM & Ammeter
      • B. Test Procedure Using the VAT-40 or Equivalent Tester