2 © 1995,1996 Directed Electronics, Inc. Vista, CA
97N719T.PM5 4/97
Do not disconnect the battery if the vehicle has an anti-theft-coded radio. If equipped with an air bag, avoid discon-
necting the battery if possible. IMPORTANT: Many airbag systems will display a diagnostic code through their
warning light after they lose power. Disconnecting the battery requires this code to be erased, a procedure that can
require a trip to the dealer.
Before beginning the installation:
• Check with the customer on Status LED location.
• Remove the domelight fuse. This prevents accidentally draining the battery.
• Roll down a window to avoid being locked out of the car.
During the installation:
• Mount the unit in the engine compartment, away from heat sources and areas that must be accessed
for routine maintenance of the vehicle.
• Mount the unit with the siren portion facing down. This will prevent water damage to the unit.
• Route the wires away from the unit and make sure they are securely fastened away from the moving
parts of the engine.
• Place the antenna as high as possible and as straight as possible for maximum operating range.
INSTALLATION POINTS TO REMEMBER
Two 491T
remote
transmitters
Status LED
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