Symptoms - Engine Electrical
Important: The following steps must be completed before using the symptom tables.
| • | Perform Control Module References before using the Symptom Tables in order to verify that all of the following are true: |
| - | The control modules can communicate via the serial data link. |
| • | Review the system descriptions and operations in order to familiarize yourself with the system functions. Refer to one of the following system operations: |
| - | Battery Description and Operation |
| - | Charging System Description and Operation |
| - | Electrical Power Management Description and Operation |
| - | Starting System Description and Operation |
Visual/physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the starting and charging systems. Refer to Checking Aftermarket Accessories . |
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
| • | Battery Electrical Drain/Parasitic Load Test |
| • | Battery Common Causes of Malfunction |
| • | Generator Noise Diagnosis |
| • | Starter Solenoid Does Not Click |
| • | Starter Solenoid Clicks, Engine Does Not Crank |
| • | Starter Motor Noise Diagnosis |
