Troubleshooting Hints - Charging System

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Visually inspect the hydrometer (built into Battery).
^ Green Eye - Battery is charged.
^ Dark eye - CHARGE and LOAD TEST Battery.
^ If battery passes load test, refer to Battery is Undercharged or Overcharged System Diagnosis.
^ Clear or light yellow eye - Battery electrolyte is low. REPLACE Battery.
2. CHECK condition of GAUGES Fuse 4. If fuse is open, LOCATE and REPAIR source of overload and REPLACE fuse.
3. CHECK that the Generator connector and Generator BATTERY connections are clean and tight.
4. CHECK that the Battery connections are clean and tight.
5. CHECK Fusible Links for opens. If Fusible Link is open, LOCATE and REPAIR source of overload and REPLACE Fusible Link.
6. CHECK condition of the Generator drive belt. REPLACE as per Engine Cooling if required.
7. CHECK that Grounds G100, G110, G103 (Gasoline Engines) and G300 (Diesel Engines) are clean and tight.
8. If more than one indicator lamp in the Instrument Cluster is not lighting, then CHECK for an open in the PNK (39) wire to the Instrument Cluster.
^ CHECK for a broken (or partially broken) wire inside the insulation which could cause system malfunction but prove GOOD in a Continuity/Voltage CHECK with a system disconnected. These Circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a Voltage drop with the system operational (under load).
^ CHECK for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer to "General Troubleshooting Procedures,"). Diagnostic Aids