Initial Inspection and Diagnostic Overview

CHARGING SYSTEM INSPECTION AND VERIFICATION

WARNING:Batteries contain sulfuric acid. Avoid contact with skin, eyes, or clothing. Also, shield your eyes when working near batteries to protect against possible splashing of the acid solution. In case of acid contact with skin or eyes, flush immediately with water for a minimum of 15 minutes and get prompt medical attention. If acid is swallowed, call a physician immediately. Failure to follow these instructions may result in personal injury.

WARNING:Batteries normally produce explosive gases which can cause personal injury. Therefore, do not allow flames, sparks or lighted substances to come near the battery. When charging or working near a battery, always shield your face and protect your eyes. Always provide ventilation. Failure to follow these instructions may result in personal injury.

WARNING:When lifting a plastic-cased battery, excessive pressure on the end walls could cause acid to spew through the vent caps, resulting in personal injury, damage to the vehicle or to the battery. Lift with a battery carrier or with your hands on opposite corners. Failure to follow these instructions may result in personal injury.
1. Verify the customer concern by operating the engine to duplicate the concern.

2. Inspect to determine if one of the following mechanical or electrical concerns apply:Visual Inspection Chart





3. Check the operation of the charging system warning indicator lamp (instrument cluster). Normal operation is as follows:

- With the ignition switch OFF, the charging system warning indicator should be OFF
- With the ignition switch in RUN and the engine off, the charging system warning indicator light should be on.
- With the engine running, the charging system warning indictor light should be off

4. Verify the battery is being charged. Carry out the Battery-Load Test. See Component Tests and General Diagnostics.

5. Check the battery voltage before and after starting the engine to determine if the battery voltage increases. See the following chart.Normal Charging System Voltages





6. If the customer concern is verified after the initial inspection, see - Symptom Related Diagnostic Procedures to determine which tests to carry out.