Troubleshooting Hints - Starting System

1. Check for any Diagnostic Trouble Codes (DTC).
2. Before component replacement, check that system connections are clean and tight.
^ Check for a broken (or partially broken) wire inside of 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 effect the integrity of other systems.
3. The battery must be in a charged state to avoid misdiagnosis. conditions could result in misdiagnosis.

STARTER
1. Visually inspect the hydrometer.
^ Green eye - battery is charged.
^ Dark eye - battery is discharged. Charge and load test battery. If battery passes load test, refer to System Diagnosis.
^ 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 diagnosis in Pass-Key(R) II Theft Deterrent System. Antitheft and Alarm Systems
3. Check that starter solenoid terminals "S" and "B" and battery connections are clean and tight.
4. Check that THFT Maxifuse(R) and RUN/CRANK Fuse in the Underhood Bussed Electrical Center (BEC). If fuse is open checks for a short to ground through CKT 5 (YEL).
5. Check the CRANK Fuse in the Rear Bussed Electrical Center (BEC). If fuse is open check for a short to ground through CKT 5 (YEL).
6. Check that grounds G102 and G103 from negative battery terminal are clean and tight.
7. Before component replacement, check for poor terminal contact at component and related harness connectors.
8. Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems. (Refer to General Troubleshooting Procedures).
9. Check for a broken (or partially broken) wire inside of insulation which could cause system malfunction but prove good in a continuity/voltage check with a system disconnected. (Refer to General Troubleshooting Procedures.) Diagnostic Aids