2-39. AMBULANCE ELECTRICAL SYSTEM TESTS
This section provides information to diagnose and correct malfunctions of the ambulance electrical system.
Each malfunction symptom given for an individual component or system is followed by step(s) that you
should take to determine the cause and corrective action necessary to remedy the problem.
Before taking any action to correct a possible malfunction, the following rules should be followed:
Question the operator to obtain any information that might help you determine the cause of the problem.
Never overlook the chance that the problem could be of simple origin because it could be corrected with
Use all senses to observe and locate trouble spots.
Use test instruments or gauges to help you determine and isolate problem.
Always isolate the system where the malfunction occurs and then locate the defective component.
Use standard automotive theories and principles when troubleshooting the vehicles covered in this
Functional Schematics for ambulance electrical systems are located on pages 2-685 thru 2-691.