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Symptoms - Engine Electrical

Symptoms - Engine Electrical


Note

The following steps must be completed before using the symptom tables.



Perform Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that all of the following are true:

- There are no DTCs set.

- 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 for easily accessible or visible system components for obvious damage or conditions which may 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 Inspection/Test

Battery Electrical Drain/Parasitic Load Test

Charging System Test

Generator Noise Diagnosis

Starter Solenoid Does Not Click

Starter Solenoid Clicks, Engine Does Not Crank

Engine Cranks Slowly

Starter Noise Diagnosis