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Home >> Ford >> 2005 >> Focus ZX4 ST >> Repair and Diagnosis >> Electrical >> Charging Systems >> Charging System - General Information >> Diagnosis And Testing >> Charging System >> Symptom Chart

Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
  • The battery is discharged or battery voltage is low
  • Circuitry.
  • 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)
  • Battery junction box (BJB) fuse 10 (10A)
  • Circuitry.
  • Generator.
  • Powertrain control module (PCM).
  • The charging system overcharges (battery voltage is greater than 15.5 volts)
  • Circuitry.
  • Generator.
  • Powertrain control module (PCM).
  • The charging system warning indicator is on with the engine running and the battery increases voltage
  • Circuitry.
  • Generator.
  • Instrument cluster.
  • Powertrain control module (PCM).
  • The charging system warning indicator is off with the ignition switch in the RUN position and the engine off
  • Instrument cluster.
  • Powertrain control module (PCM).
  • The charging system warning indicator flickers or is intermittent
  • Instrument cluster.
  • INSTALL a new instrument cluster. Refer to INSTRUMENT CLUSTER for the removal and installation procedure.
  • The generator is noisy
  • Loose bolts/brackets.
  • Drive belt.
  • Generator/pulley.
  • Radio interference
  • Generator.
  • Wiring/routing.
  • In-vehicle entertainment system.