2011 Mercury Grand Marquis Owner Guide 1st Printing - Page 271

Crown Victoria Severe Duty approaches a discharged state it becomes easier for the electrolyte to freeze. If it freezes and expands it may crack the battery case. Alternator - police The high-output alternator provides 200 amperes of current to support the high power requirements of modern police equipment. Output at idle is approximately 130 amperes. Current demand by both the vehicle and all energized police equipment in excess of this amount during vehicle idling will place the electrical system into a discharge condition. Electrical power management systems should be applied if necessary to avoid discharging the battery. Power distribution connector Power for aftermarket equipment can be obtained from the power distribution connector located under the glove compartment. This connector contains several fused power feeds and inputs available for the addition of accessories. The following tables show the circuits available for equipment. Pin 1 2 3 4 5 6 7 8 9 10 11 12 Function 5A Start Vehicle speed signal Battery saver 20A Battery 15A Battery 50A Battery 20A Run/Acc 20A Battery 20A Run/Acc Hazard out 50A Battery Hazard In Police Gauge Color 18 Red/Black 18 Gray/Black 18 Dark green/Light green 14 Light green 18 Orange/Light green 10 Tan/Yellow 14 Pink 14 Light Blue/White 14 Tan 18 Black/Yellow 10 Red/White 18 Gray/White 271 2011 Crown Victoria (cro) Owners Guide, 1st Printing USA (fus)