HARNESS AS-HYDRAULIC SERVICE CENTER 3240691 - Caterpillar

electronic control modules have a higher acceptable limit. For more information, contact a Caterpillar dealer or contact the business unit that produces the machine.Expected Result:The current is below 0.050 A (50 mA).Results:
YES - The current is below 0.050 A. The charging system is functioning properly at this time. The failure is possibly an intermittent draw in the system. The batteries may have failed. Ensure that NO accessories were ON during the test. Exit this procedure and retest the alternator charging system.STOP
NO - The current is above 0.050 A. There is a draw in the system. Proceed to test step 13.Test Step 12. MEASURE THE CURRENT OF THE SYSTEM BY REMOVING THE NEGATIVE BATTERY CABLE.
Disconnect the ground cable from the negative battery post. There may be more than one battery that is connected to ground. Disconnect all of the batteries that are connected to ground. Do not disconnect cables that are between batteries that are connected in series.
Connect a multimeter between the disconnected battery ground cable and one of the negative battery terminals. Connect the red positive lead