Inspection and Verification
INSPECTION AND VERIFICATIONWARNING:
- Batteries contain sulfuric acid and produce explosive gases. Work in a well-ventilated area. Do not allow the battery to come in contact with flames, sparks or burning substances. Avoid contact with skin, eyes or clothing. Shield eyes when working near the battery to protect against possible splashing of acid solution. In case of acid contact with skin or eyes, flush immediately with water for a minimum of 15 minutes, then get prompt medical attention. If acid is swallowed, call a physician immediately. Failure to follow these instructions may result in serious personal injury.
- Always lift a plastic-cased battery with a battery carrier or with hands on opposite corners. Excessive pressure on the battery end walls may cause acid to flow through the vent caps, resulting in personal injury and/or damage to the vehicle or battery.
CAUTION:
- Do not make jumper connections except as directed. Incorrect connections may damage the voltage regulator test terminals fuses or fuse links.
- Do not allow any metal object to come in contact with the generator housing and internal diode cooling fins. A short circuit may result and burn out the diodes.
NOTE: All voltage measurements are referenced to the negative (-) battery post unless otherwise specified.
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart:
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. Verify the battery condition. Refer to Battery.
5. Check the operation of the charging system warning indicator in the instrument cluster. Normal operation is as follows:
- With the key OFF, the charging system warning indicator should be OFF.
- With the key ON and the engine off, the charging system warning indicator should be on.
- With the engine running, the charging system warning indicator should be off.
6. Turn off the headlamps and the A/C system (if equipped). Turn the climate control blower to low/off. Check the battery voltage before and after starting the engine to determine if the battery voltage increases.
7. If the cause is not visually evident, verify the symptom and GO to Symptom Chart. Symptom Related Diagnostic Procedures