The charging system requires periodic inspection and service. Specific problem symptoms, their possible cause, and the service required are listed in the chart below. The service actions require a thorough visual inspection. Problems identified must be corrected before proceeding with electrical tests. These electrical tests include: an alternator output test, charging circuit voltage-drop tests, a voltage regulator (non-IC) test, charging circuit relay (lamp, ignition, engine) tests, and alternator bench tests.
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