Vehicle Alarm System (490-0712) Installation Faxback Doc. # 31503 BEFORE YOU BEGIN INSTALLATION Before you install the system, read the entire installation section and decide where to mount the control center and where to route all wiring. Be sure all wires can reach the control center's location to save you the time and effort of remounting and rerouting. The control center mounts in the engine compartment. The red wire connects the control center to the vehicle battery's positive terminal. The following overview and the diagram at the end of the manual can help you understand how the system works when it is properly installed. To install this system, you must be familiar with your vehicle's wiring system. For example, you must be able to identify the following: Constant + 12 Volts Electric Cooling Fan Motor (if so equipped) If necessary, contact your vehicle's dealer for more information. You will need: 1. Drill with 1/8-and 3/8-inch bits. 2. Phillips screwdriver. 3. Wrench (for disconnecting the vehicle's negative battery cable). CAUTION: Be sure your vehicle has a 12-volt DC, negative-ground electrical system. For your safety and to protect your alarm system and vehicle, disconnect your vehicle's negative (-) battery terminal cable before you begin. As you install the system, place a check mark next to each step. MOUNTING THE CONTROL CENTER NOTES: Use all three screws for the best shock sensor performance and connection. Be sure the bracket makes contact with a metal part of your vehicle's body. To get the most motion sensor sensitivity, choose a location for the mounting bracket where you can position the control center horizontally. 1. Select a location for the control center on the engine compartment's interior wall. CAUTIONS: Do not choose a location where you might drill into your vehicle's wiring or suspension system. Be sure that each of the wires on the wiring harness can reach its connection point from the selected location. 2. Twist the knobs on the sides of the control center counterclockwise and remove the mounting bracket from the control center. 3. Using the mounting bracket as a guide, drill three 1/8-inch (3.2 mm) pilot holes into the mounting surface. 4. Secure the bracket by inserting the supplied screws and washers through the bracket and into the mounting surface, and tightening the screws. 5. Use the screws with knob ends that you removed in Step 2 to attach the control center to the mounting bracket. MOUNTING THE ANTENNA The antenna wire receives the remote arm/disarm signal. Set the wire vertically behind the grille (away from a fan) or in another location where the reception is not blocked by the vehicle's metal chassis. MOUNTING THE INDICATOR 1. Locate a point on the dashboard that you can easily see from outside the vehicle. 2. Push on the LED, grasp the rubber flange, and gently pull the indicator out of the mounting collar. 3. Drill a 3/8-in (10 mm) hole in the desired mounting location, taking care not to drill into anything behind the dashboard. 4. Press the collar into the hole from the front of the dashboard. 5. Secure the supplied washer, lock washer, and nut on the collar from the back of the dashboard panel. 6. Insert the indicator into the mounting collar from the back, then connect the indicator's plug to the corresponding wire on the control center. CONNECTING THE WIRING HARNESS The wiring harness connects the control center to 12-volt DC power and to the cooling fan motor (if applicable). CAUTION: Avoid routing the wire over sharp edges and hot or moving parts. CONNECTING TO POWER Connect the red wire (with the in-line fuse) to a continuous 12-volt source. The control center sounds two tones. You can connect it directly to the battery's positive terminal or to a nonswitched fuse terminal (that the vehicle's ignition does not turn on and off). CONNECTING THE COOLING FAN LEAD If you vehicle has an electric engine cooling fan that turns on after you turn off the ignition, you must connect the supplied yellow cooling fan wire using the supplied wire connector. The connector extends the yellow wire from the control center to the lead on the fan housing that goes to the thermostatic switch. This lead has +12 V when the fan is on and is grounded when the fan is off to prevent the fan from causing false alarms. If your vehicle does not have a cooling fan that turns on to cool the engine, connect the yellow wire to the vehicle's frame or firewall using an existing bolt or directly to the battery's negative terminal. COMPLETING THE INSTALLATION CAUTION: Your vehicle's negative battery cable should be disconnected. After you complete all connections, recheck them to be sure they are correct. Reconnect the vehicle's negative (-) battery cable and ensure all other electric devices in your vehicle are operating properly. NOTE: You must reset your clock and any other memory devices in your vehicle. (EB 3/21/96)