Model 745T Installation Guide © 2005 Directed Electronics, Vista, CA N745T 09-05
table of contents what is included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 primary harness (H1) wire connection guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 door lock harness (H2) wire connection guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 identifying the door lock system . . . . . . . . . . . . . . . . . . . .
what is included ■ Control module ■ One 4-button remote transmitter ■ Plug-in LED system status indicator ■ One 5-button 2-way LCD remote transmitter ■ An on-board dual zone impact sensor ■ Plug-in Valet/Program switch ■ 12-pin primary harness ■ High-powered siren ■ 3-pin auxiliary harness ■ 7-pin door lock harness ■ Plug-in 544N transceiver ■ Plug-in starter interrupt harness primary harness (H1) wire connection guide H1/1 H1/2 H1/3 H1/4 H1/5 H1/6 H1/7 H1/8 H1/9 H1/10 H1/11 ______ ______
IMPORTANT! Never use this wire to drive anything but a relay or a low-current input! The transistorized output can only supply 200 mA of current. Connecting directly to a solenoid, motor, or other high-current device will cause it to fail. (+) 12V IF (+) SWITCHED (-) GROUND IF (-) SWITCHED H1/1 RED/WHITE 85 86 87 87A 30 SWITCHED TRUNK RELEASE WIRE (+) 12V CONSTANT FUSED H1/2 RED (+)12V constant power input Before connecting this wire, remove the supplied fuse.
H1/4 YELLOW PRIMARY HARNESS TO IGNITION SYSTEM H1/5 BLACK (-) chassis ground connection Remove any paint and connect this wire to bare metal, preferably with a factory bolt rather than a screw. (Screws tend to strip or loosen with time.) We recommend grounding all components, including the siren, to the same point. H1/6 VIOLET (+) door trigger input, zone 3 This wire is used in vehicles that have a positive (+) switched domelight circuit.
H1/8 GREEN (-) door trigger input, zone 3 Most vehicles use negative door trigger circuits. Connect the green wire to a wire which shows ground when any door is opened. In vehicles with factory delays on the domelight circuit, there is usually a wire that is unaffected by the delay circuitry. This wire will report Zone 3. H1/9 BLACK/WHITE high current output from on-board interior light illumination relay Connect this wire directly to the domelight circuit in the vehicle.
H1/11 WHITE (+/-) selectable light flash output As shipped, this wire should be connected to the (+) parking light wire. If the light flash polarity jumper inside the control module is moved to the opposite position (see Internal Programming Jumper section of this guide), this wire supplies a (-) 200 mA output. This is suitable for driving (-) light control wires in Toyota, Lexus, BMW, some Mitsubishi, some Mazda, and other model cars.
door lock harness (H2) wire connection guide H2/A H2/B H2/C H2/D H2/E H2/F H2/G ______ ______ ______ ______ ______ ______ ______ VIOLET* LOCK RELAY, NORMALLY OPEN BLUE/BLACK LOCK RELAY, COMMON BROWN/BLACK LOCK RELAY, NORMALLY CLOSED VIOLET/BLACK* UNLOCK RELAY, NORMALLY OPEN GREEN/BLACK UNLOCK RELAY, COMMON WHITE/BLACK UNLOCK RELAY, NORMALLY CLOSED BLACK/WHITE INPUT TO ON-BOARD INTERIOR LIGHT ILLUMINATION RELAY #87 *VIOLET and VIOLET/BLACK wires are common at the fuse holder.
There are eight common types of door lock circuits (some vehicles use more unusual systems): ■ Type A: Three-wire (+) pulse controlling factory lock relays. Most GM, some Ford and Chrysler, 1995 Saturn, some new VW, newer BMW. ■ Type B: Three-wire (-) pulse controlling factory lock relays. Most Asian vehicles, early Saturn, some BMW and Porsche. ■ Type C: Direct-wired reversing-polarity switches. The switches are wired directly to the motors. This type of system has no factory relays.
type A: positive-triggered, relay-driven system The system can control Type A door locks directly, with no additional parts. The switch will have three wires on it, and one will test (+)12V constantly. The others will alternately pulse (+)12V when the switch is pressed to the lock or unlock position. If you cannot get to the switch, and you find a set of wires that pulse (+)12V alternately on lock and unlock, make sure that it is not a Type C direct-wire system.
type B: negative-triggered, relay-driven system This system is common in many Toyota, Nissan, Honda, and Saturn models, as well as Fords with the keylessentry system (some other Fords also use Type B). The switch will have three wires on it, and one wire will test ground all the time. One wire will pulse (-) when the switch locks the doors, and the other wire will pulse (-) when the switch unlocks the doors. This type of system is difficult to mistake for any other type.
type C: reversing polarity system ON-BOARD UNLOCK RELAY #87A #87 #30 H2/A VIOLET UNLOCK #87 NORMALLY OPEN (INPUT) VIOLET & VIOLET/BLACK ARE COMMON AT FUSE HOLDER H2/B BLUE/BLACK UNLOCK #30 COMMON (OUTPUT) VEHICLE FUSED (+)12 VOLT CONSTANT 15A ON-BOARD LOCK RELAY H2/C BROWN/BLACK UNLOCK #87A NORMALLY CLOSED H2/D VIOLET/BLACK LOCK #87 NORMALLY OPEN (INPUT) H2/E GREEN/BLACK LOCK #30 COMMON (OUTPUT) H2/F WHITE/BLACK LOCK #87A NORMALLY CLOSED #87A #87 #30 X H2/G BLACK/WHITE CUT X MO
type D: adding one or more after-market actuators Vehicles without factory power door locks require the installation of one actuator per door. This requires mounting the door lock actuator inside the door. Other vehicles may only require one actuator installed in the driver's door if all door locks are operated when the driver's lock is used.
type E: electrically-activated vacuum This system is found in Mercedes-Benz and Audi 1985 and newer. The door locks are controlled by an electrically activated vacuum pump. The control wire will show (+)12V when doors are unlocked and (-) ground when locked. NOTE: The system must be programmed for 3.5-second door lock pulses, and the violet jumper between the #87 lock terminal and the #87 unlock terminal must be cut.
type F: one-wire system (cut to lock, ground to unlock) This type of door lock system usually requires a negative pulse to unlock, and cutting the wire to lock the door. (With some vehicles, these are reversed.) It is found in the late-model Nissan Sentras, some Nissan 240SX, Nissan 300ZX 1992 and later. It is also found in some Mazda MPV's. NOTE: The violet jumper between the #87 lock terminal and the #87 unlock terminal must be cut.
type G: positive (+) multiplex This system is most commonly found in Ford, Mazda, Chrysler and GM vehicles. The door lock switch or door key cylinder may contain either one or two resistors. SINGLE-RESISTOR TYPE: If one resistor is used in the door lock switch/key cylinder, the wire will pulse (+)12V in one direction and less than (+)12V when operated in the opposite direction.
H2/G ON-BOARD UNLOCK RELAY #87A #87 ON-BOARD LOCK RELAY #87A #87 H2/F #30 VIOLET UNLOCK #87 NORMALLY OPEN (INPUT) VIOLET & VIOLET/BLACK ARE COMMON AT FUSE HOLDER BLUE/BLACK UNLOCK #30 COMMON (OUTPUT) 15A H2/E BROWN/BLACK NOT USED H2/D VIOLET/BLACK LOCK #87 NORMALLY OPEN (INPUT) VEHICLE FUSED +12 VOLT CONSTANT LOCK RESISTOR (IF REQUIRED) H2/C GREEN/BLACK LOCK #30 COMMON (OUTPUT) H2/B WHITE/BLACK NOT USED H2/A BLACK/WHITE DOMELIGHT SUPERVISION RELAY NORMALLY OPEN #30 BCM UNLOCK RES
type H: negative (-) multiplex The system is most commonly found in Ford, Mazda, Chrysler and GM vehicles. The door lock switch or door key cylinder may contain either one or two resistors. SINGLE-RESISTOR TYPE: If one resistor is used in the door lock switch/key cylinder, the wire will pulse ground in one direction and resistance to ground when operated in the opposite direction.
auxiliary harness (H3) wire connection guide H3/1 H3/2 H3/3 ______ ______ ______ VIOLET/BLACK (-) 200 mA CHANNEL 4 OUTPUT BROWN/BLACK (-) 200 mA HORN HONK OUTPUT BLUE (-) 200 mA SECOND UNLOCK H3/1 VIOLET BLACK (-) 200mA channel 4 output This wire supplies a (-)200mA output whenever the button(s) controlling channel four is pressed and will continue until the button(s) is released. This output can be used to control optional accessories.
H3/3 BLUE (-) 200mA second unlock output This output is used for progressive door unlock. A progressive unlock system unlocks the driver's door when the unlock (disarm) button is pressed and unlocks the passenger doors if the unlock (disarm) button is pressed again within 15 seconds after unlocking the driver's door. The BLUE wire outputs a low current (-) pulse on the second press of the unlock button of the transmitter. This negative unlock output is used to unlock the passenger doors.
Driver’s Door Unlock Only (Type B): UNLOCK RELAY #87A #87 #30 H3/3 BLUE H2/A VIOLET UNLOCK #87 NORMALLY OPEN (INPUT) H2/B BLUE/BLACK UNLOCK #30 COMMON (OUTPUT) (-) 200MA SECOND UNLOCK OUTPUT 15A DRIVERS DOOR UNLOCK MOTOR (+)12V CONSTANT X X CUT CUT H2/C LOCK RELAY #87A #87 #30 LOCK MOTOR BROWN/BLACK UNLOCK #87A NORMALLY CLOSED H2/D VIOLET/BLACK LOCK #87 NORMALLY OPEN (INPUT) H2/E GREEN/BLACK LOCK #30 COMMON (OUTPUT) H2/F WHITE/BLACK LOCK #87A NORMALLY CLOSED X X TO CHASS
STARTER WIRE IN VEHICLE X CUT X STARTER MOTOR/ STARTER MOTOR RELAY BLACK BLACK DIA-250 DIRECTED SECURITY SYSTEM plug-in LED and valet/program switch The LED and the Valet/Program switch both plug into the control module. The LED system status indicator plugs into the white two-pin port, while the Valet/Program switch should be plugged into the blue two-pin port. The LED and Valet/Program switch each fit into 9/32-inch holes.
internal programming jumper NOTE: JUMPER IS INSIDE THE CASE light flash jumper This jumper is used to determine the light flash output. In the (+) position, the on-board relay is enabled and the unit will output (+)12V on the H1/11 WHITE wire. In the (-) position, the on-board relay is disabled. The H1/11 WHITE wire will supply a (-) 200 mA output suitable for driving factory parking light relays. To access the jumper, open the control module.
on-board dual stage impact sensor Less Sensitive + More Sensitive There is a dual-stage impact sensor inside the control unit. Adjustments are made via the rotary control as indicated above. Since the impact sensor does not work well when mounted firmly to metal, we recommend against screwing down the control module. We recommend mounting the control module to a large wiring loom.
transmitter/receiver learn routine The system comes with two transmitters that have been taught to the receiver. Use the following learn routine to add transmitters to the system or to change button assignments if desired. The Valet/Program switch, plugged into the blue port, is used for programming. There is a basic sequence to remember whenever programming this unit: Door, Key, Choose, Transmit and Release. 1. Open a door. (The GREEN wire, H1/8, or the VIOLET, H1/6 must be connected.) 2. Key.
Transmit. While HOLDING the Valet/Program switch, press the transmitter button that you 4. wish to assign to that channel. The unit will chirp indicating successful programming. Release. Once the code is learned, the Valet/Program switch can be released. 5. You can advance from one channel to another by releasing the Valet/Program switch and tapping it to advance channels and then HOLDING it.
LCD 2-way transmitter additional controls The LCD 2-way transmitter has the following additional controls: , and operates No function operates Remote extended functions/LCD backlight and operates Battery Saver Mode and operate Beep/Vibrate Notification and operate Time/Alarm Display and operates Parking Timer © 2005 Directed Electronics, Vista, CA—all rights reserved 27
system features learn routine Many of the features of this unit are programmable. They can be changed whenever necessary through this learn routine. The Valet/Program switch, plugged into the blue port, is used together with a programmed transmitter to change the settings. To enter the feature learn routine: 1. Open a door. (The GREEN wire, H1/8, or the VIOLET, H1/6 must be connected.) 2. Ignition. Turn the ignition on, then back off. (The H1/4 YELLOW switched ignition input must be connected.) 2.
To exit the Code Learning, do one of the following: ■ The doors are closed. ■ Turn the ignition on. ■ No activity for longer than 15 seconds. ■ Press the Valet/Program switch too many times.
3 IGNITION-CONTROLLED DOOR LOCK/UNLOCK ON/OFF: When turned on, the doors will lock three seconds after the ignition is turned on and unlock when the ignition is turned off. If the ignition key is turned on while the vehicle door(s) are open, the door(s) will not lock. 4 ACTIVE/PASSIVE LOCKING: If passive arming is selected in Feature 1, then the system can be programmed to either lock the doors when passive arming occurs, or only lock the doors when the system is armed with the transmitter.
10 Comfort closure feature: This feature is designed to integrate with vehicles that can close the power windows and sunroof by holding the key in the driver door lock position, and will operate on both single input systems and two pulses input dead bolt systems. If programmed on the door lock output will activate the Comfort Close output for 20 seconds. This output will begin 200mS after the final door lock output has completed regardless of the door lock programming.
table of zones When using the Diagnostic functions, use the Table of Zones to see which input has triggered the system. It is also helpful in deciding which input to use when connecting optional sensors and switches. ZONE NO. TRIGGER TYPE INPUT DESCRIPTION 1 Multiplex H1/7 BLUE wire. Connects to optional hood/trunk pins or an optional sensor. Inputs longer than 0.8 seconds will instantly trigger the full alarm sequence and report Zone 1.
■ Door input does not respond with the progressive trigger, but with immediate full alarm: Does the LED indicate that the trigger was caused by the impact sensor? (See Table of Zones section of this guide.) The impact sensor, if set to extreme sensitivity, may be detecting the door unlatching before the door switch sends its signal. Reducing the sensitivity can solve this problem.
Black (-) (Chassis Ground) White/Black Lock Relay Normally Closed Relay #87A Red/White (-) 200 mA Channel 2 Auxiliary Output Red (+) (Constant Power) Brown (Siren output) (+) 1A Yellow (+) Ignition Input Zone #5 Violet (Door Trigger Input) (+) Zone #3 Green/Black Lock Relay Common Relay #30 Black/White Input to On-board Domelight Supervision Relay #87 Blue (Trunk/Hood Input) (-) Zone #1 Red Factory Trunk Release Relay (Optional) Fuse Chassis Ground Positive Door Pin Switch Negative Trunk P
