Symptom Related Diagnostic Procedures

Battery Diagnostics:

CAUSES OF BATTERY DISCHARGING
It is normal to have up to a 30 milliamperes continuous electrical draw ON the battery. This draw will take place with the ignition in the OFF position, and the courtesy, dome, storage compartments, and engine compartment lights OFF. The continuous draw is due to various electronic features or accessories that require electrical current with the ignition OFF to function properly. When a vehicle is not used over an extended period of approximately 20 days the IOD fuse should be disconnected. The IOD fuse is located in the Power Distribution Center and disconnection of this fuse will help prevent the battery from discharge during storage. Refer to Battery Diagnosis and Testing Table and to the proper procedures.