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© 2011 Directed Electronics. All rights Reserved.

1

Quick Reference Install Guide

Remote Start w/ Keyless Entry

Responder LC3

4x04

Neutral Safety

Switch

D2D Port (for external 

Xpresskit interface module)

ON

IMPORTANT! 

Neutral Safety

switch must be plugged in

and in the 

ON

 position

RF Port
for IVU

Control Center

Thermistor/Temp Sensor

Bitwriter/SmartStart Port

Door Lock

 Port

Remote Start

8-pin Harness

Main 6-pin

 Harness

10A FUSE 

MINI ATM 

RPN: 8540

LIGHT FLASH POLARITY 

(10A (MAXIMUM) FUSE JUMPER)     

Aux/Shutdown/Trigger 24-pin Harness

Horn Input

Polarity Jumper

+     -

1 3 5

INSERTION/WIRE SIDE

2 4 6

24

23

PINK/WHITE

VIOLET/WHITE

GREEN/WHITE

BLACK/WHITE

Guide Translations

For a Spanish or French version of the Installation Guide, please download it from 

www.directechs.com under Resources.

Estimado Cliente:

Si buscas los guías de instalación, por favor de bajar lo del Resources en el sitio 

www.directechs.com

Cher consommateur:

Si vous désirez une version française ou espagnole du guide d’installation, veuillez 

s.v.p. le télécharger à l’adresse suivante: www.directechs.com en appuyant sur 

l’icône <<Resources>>.

Wiring Connections

Main Harness , 6-pin connector

H/1

RED

(+)12VDC CONSTANT INPUT

H/2

BLACK

(-) CHASSIS GROUND

H/3

BROWN

 (-) 200mA HORN HONK OUTPUT

H/4

WHITE/BROWN

LIGHT FLASH  ISOLATION WIRE - PIN 87a light flash relay

H/5

WHITE

PIN 30 of LIGHT FLASH RELAY

H/6

ORANGE

500 mA GROUND WHEN ARMED OUTPUT

Door Lock, 3-pin connector 

1

BLUE

500mA (-) UNLOCK OUTPUT

2

EMPTY

NOT USED

3

GREEN 

500mA (-) LOCK OUTPUT

Remote Start, 8-pin connector

1

PINK

(+) IGNITION 1 INPUT/OUTPUT

2

RED/WHITE

(+) 12VDC CONSTANT INPUT for ignition 2 and flex relays

3

ORANGE

(+) ACCESSORY OUTPUT

4

VIOLET

(+) STARTER OUTPUT

5

RED

(+) 12VDC CONSTANT INPUT for ignition 1 relay

6

PINK/WHITE

(+) IGNITION 2 / FLEX RELAY OUTPUT

7

PINK/BLACK

(+) FLEX RELAY INPUT 87A key side (if required) of FLEX RELAY

8

RED/BLACK

(+) 12VDC CONSTANT INPUT for ACC and starter relays

Auxiliary/Shutdown Harness 24-pin connector

H/1

PNK/WHITE

(-) 200mA FLEX RELAY CONTROL OUTPUT

H/2

BLACK/WHITE

(-) NEUTRAL SAFETY INPUT

H/3

BLUE/WHITE

(-) 200mA 2ND STATUS /REAR DEFOGGER OUTPUT

H/4

GREEN/BLACK 

(-) 200mA FACTORY ALARM DISARM OUTPUT

H/5

RED/WHITE

(-) 200mA TRUNK RELEASE OUTPUT

H/6

GREEN

(-) DOOR INPUT

H/7

BLACK/YELLOW

(-) 200mA DOME LIGHT OUTPUT

H/8

EMPTY

----------------------------------------

H/9

DARK BLUE

(-) 200mA STATUS OUTPUT

H/10

PINK

(-) 200mA IGNITION 1 OUTPUT

H/11

WHITE/BLACK

(-) 200mA AUX 3 OUTPUT

H/12

VIOLET

(+) DOOR INPUT

H/13

WHITE/VIOLET

(-) 200mA AUX 1 OUTPUT

H/14

VIOLET/BLACK

(-) 200mA AUX 2 OUTPUT

H/15

ORANGE/BLACK

(-) 200mA AUX 4 OUTPUT

H/16

BROWN

(+) BRAKE SHUTDOWN INPUT

H/17

GRAY

(-) HOOD PIN INPUT (NC OR NO)

H/18

VIOLET/YELLOW

(-) 200mA STARTER OUTPUT

H/19

BLUE

*

FACTORY HORN INPUT (Use jumper to set polarity)

H/20

GRAY/BLACK

(-) DIESEL WAIT TO START INPUT

H/21

WHITE/BLUE

ACTIVATION INPUT

H/22

ORANGE

(-) 200mA ACCESSORY OUTPUT

H/23

VIOLET/WHITE

TACHOMETER INPUT

H/24

GREEN/WHITE

(-) 200mA FACTORY ALARM ARM OUTPUT

This optional input can be connected to the horn circuit (+ or -). When this wire 

receives input for a minimum of .5 seconds, the system reports a trigger on the 

2-way remote. This is useful on vehicles that have a factory security system that 

can be armed/disarmed with the Directed system. This system will not report that 

a zone has been triggered when unlocking with the 2-way remote. This feature is 

not available on the 1-way remote.

Bitwriters with a date code of 6a or older require an IC 
upgrade (p/n 998M). Some bitwriters with a date code 
of 6B do not require the IC upgrade, refer to tech tip # 
1112 for more information. 

The Bitwriter® (p/n 998U) 
requires chip version 

2.7

 or 

newer to program this unit.

Installation Points

Status LED

Control button

Learning the Tach (not needed with Virtual Tach)

To learn the tach signal:

1. 

Start

 the vehicle with the key.

2.  Within 5 seconds, 

press

 and 

hold

 the Control button.

3.  After 3 seconds the status LED on your Control Center lights constant when 

the tach signal is learned.

4. 

Release

 the Control button.

Learning Virtual Tach (not needed with hardwire tach inputs)

To program Virtual Tach:

1.  After the install is complete, 

remote start

 the engine. The programming op-

eration may require 3 cranks of the starter before the engine starts and runs. 

Do not turn off the remote start if this happens, it is a normal programming 

operation.

2.  Once the engine begins running, let it run for at least 30 seconds.

3.  Using the Remote, send the Remote start command to turn remote start off. 

Virtual Tach is programmed.

To reset Virtual Tach, go into the Remote Pairing section of this guide and 

press/re-

lease

 the Control button 4 times for step #4, then 

press

 and 

hold

 the Control button 

to reset Virtual Tach. Virtual Tach 

cannot

 be reset with the Bitwriter.

Note:

 

Virtual Tach cannot be used in MTS Manual Transmission Mode. It is also not 

recommended for diesel trucks.

Virtual Tach handles disengaging the starter motor during remote starting – it does 

not address over-rev. If the customer wants to have the over-rev protection capability, 

the tach wire must be connected.

Important:

 After successfully learning Virtual Tach, a small minority of ve-

hicle starters may over crank or under crank during remote start. The 

Bitwriter can be used to fine tune the starter output time in 50mS increments 

to compensate for such an occurrence.

Remote Start Shutdown/Startup Diagnostics

To perform shutdown diagnostics:

1.  With the ignition Off, 

press

 and 

hold

 the Control button.

2. 

Turn

 the ignition On and then back Off while 

holding

 the Control button.

3. 

Release

 the Control button.

4. 

Press

 and 

release

 the Control button. The status LED flashes to report the last 

shutdown for one minute or until the ignition is turned on, as shown in the 

following table:

Status LED Flashes  Shutdown Mode

1 flash 

 

Runtime expired  

2 flashes   

Over-rev shutdown     

3 flashes   

Low or no RPM

4 flashes   

Transmitter shutdown (or optional push button)

5 flashes   

(+) Brake shutdown 

6 flashes   

(-)  Hood shutdown

7 flashes   

Timer mode/Turbo mode/Manual mode error *

8 flashes   

Neutral safety shutdown

9 flashes   

Low battery (voltage mode)

11 flashes  

Wait-to-start input timed out 

 

*  Timer mode error: Ignition is on or shutdown input is active when activating 

timer mode.

    Turbo mode error: Turbo mode is programmed off, engine is not on or shut-

down input is active.

  

Manual mode error: MTS mode not enabled.

Startup Diagnostics:

 If the vehicle fails to activate the remote start, the remote start 

module will flash the parking lights on the vehicle to notify you of what caused the 

no-start situation.

Parking Light Flashes

5 flashes  Brake wire is active

6 flashes  Hood pin wire is active

7 flashes  Manual transmission mode is enabled and not initialized.

8 flashes  Neutral safety wire has no ground or the neutral safety switch is Off.

Remote Pairing

Prepare the vehicle system to be Paired with a new remote

1. 

Turn

 the key to the ON position. 

2.  Within 5 seconds 

press

 and 

release

 the Control button on the system’s Control 

Center one time.

3.  Within 5 seconds, 

press

 and 

hold

 the Control button on the Control Center.  

The status LED will flash one time and the horn honks to confirm the vehicle is 

ready for remote pairing.

4. 

Release

 the Control button and proceed below.

Note:

 

If no remote pairing results, the system will exit after 60 seconds. 

Prepare the new remote to be Paired with the system

Make sure the LC3 remote is set for the desired Car 1 (Default) or Car 2 operation. 

1. 

Press

 and 

hold

 the 

AUX

 button for 8 seconds until the main menu appears.

2. 

Press

 and 

release

 the 

AUX

 button until  Remote Pair

 

text is displayed.

3. 

Press

 and 

release

 the 

AUX

 button until  Pair

 

text is displayed. 

4. 

Press

 and 

hold

 the

AUX

 button until tones are played on the LC3 remote.

5.  Successful or Failed Pair: The LC3 remote control indicates a successful or 

failed pairing on the display. 

Note: 

Please see installation guide for pairing with the 1-way companion remote.

Basic Remote Functions

Button

Level

DIRECT 
ACCESS

A U 

X

X 1

A U 

X

X 2

A U 

X

X 3

A U 

X

X 4

A U 

X

LOCK

SILENT LOCK

A U 

X

UNLOCK

SILENT UNLOCK

REMOTE VALET

CAR FINDER

A U 

X

REMOTE START

RUNTIME RESET

TIMER MODE

SMART START

REAR DEFOGGER

AUX

TRUNK RELEASE

AUX 1

AUX 2

AUX 3

AUX 4

A U 

X

FUNCTION SHIFT

CABIN TEMPERA-

TURE REQUEST 

(2-WAY ONLY)

RUNTIME CHECK

(2-WAY ONLY) 

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