FixVault

Symptom Chart

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
CHARGING SYSTEM SYMPTOM CHART

Condition Possible Sources Action
  • The battery is discharged or battery voltage is low
  • Corroded terminal(s)
  • Loose connection(s)
  • High key-off current drain(s)
  • Battery
  • Generator
  • The charging system warning indicator is on with the engine running (the charging system voltage does not increase)
  • Circuitry
  • Voltage regulator
  • Generator
  • The charging system overcharges (battery voltage is greater than 15.5 volts)
  • Circuitry
  • Voltage regulator
  • Generator
  • The charging system warning indicator is on with the engine running and the battery increases voltage
  • Circuitry
  • Instrument cluster
  • Voltage regulator
  • Generator
  • The charging system warning indicator is off with the ignition switch in the RUN position and the engine off
  • Bulb
  • Circuitry
  • Instrument cluster
  • Voltage regulator
  • Generator
  • The charging system warning indicator flickers or is intermittent
  • Corroded terminal(s)
  • Fuse(s)
  • Circuitry
  • Voltage regulator
  • Generator
  • The generator is noisy
  • Bolts or brackets
  • Drive belt
  • Generator or pulley
  • Radio interference
  • Generator
  • Circuitry
  • In-vehicle entertainment system