Preliminary Information

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
STARTER
1. Visually inspect the hydrometer (built into battery).
^ Green eye - battery is charged.
^ Dark eye - battery is discharged. Charge and load test battery. If battery passes load test, refer to System Diagnosis. Troubleshooting Hints
^ Clear or light yellow eye - battery electrolyte is low. Replace battery.
2. Always note condition of SECURITY indicator if engine does not crank. If the indicator stays ON or flashes continuously, refer to Accessories and Optional Equipment for Theft Deterrent System.
3. Check that starter solenoid terminals S and B and battery connections are clean and tight.
4. Check that IGN1 Maxi(R) Fuse 1 is undamaged. If fuse is open, check for a short to ground through CKT 5 or CKT 6.
5. Check that grounds from negative battery terminal are clean and tight.
^ For 4.9L powertrain (L26), the grounds are G100 and G104.
^ For 4.6L Northstar powertrain, the grounds are G100 and G105.
6. Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems. (Refer to Diagnostic Aids/Troubleshooting Procedures). Diagnostic Aids

CHARGING SYSTEM
1. Visually inspect the hydrometer (built into battery).
^ reen eye - battery is charged.
^ Dark eye - battery is discharged. Charge and load test battery. If battery passes load test, refer to System Diagnosis. Troubleshooting Hints
^ Clear or light yellow eye - battery electrolyte is low. Replace battery.
2. Check that the generator connector and generator BAT terminals are both clean and tight.
3. Check that battery connections are clean and tight.
4. Check generator belt.
5. Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems. (Refer to Diagnostic Aids/Troubleshooting Procedures). Diagnostic Aids