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© 2012 Directed. All rights Reserved.

1

Quick Reference Install Guide

Security and Remote Start
Responder LC3

5x04

Neutral Safety

Switch

1

10

9

8

7

6
1

2

3

4

5

1

1

8

5

1

1

3

10

12

18

10

9

1

1

12

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
Sensor 1

Bitwriter/SmartStart Port

Door Lock

 Port

Remote Start

10-pin Harness

Main 6-pin

 Harness

10A FUSE 

MINI ATM 

RPN: 8540

LIGHT FLASH POLARITY 

(10A (MAXIMUM) FUSE JUMPER)     

Sensor 2

Aux/Shutdown/Trigger 24-pin Harness

Guide Translations

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

www.directechs.com under “Resources”.

Traducción de los manuales:

Para obtener una versión en Español o Francés del Manual de Instalación, descár-

guela de www.directechs.com bajo el título “Recursos” (“Resources”).

Traduction du guide:

Pour une version française ou espagnole du guide d’installation, veuillez le té-

lécharger à www.directechs.com sous «Resources»..

Auxiliary/Shutdown/Trigger Harness, 24-pin connector

1

PNK/WHITE

(-) 200mA Ignition 2/Flex  OUTPUT

2

BLUE/WHITE

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

3

RED/WHITE

(-) 200mA TRUNK RELEASE OUTPUT

4

BLACK/YELLOW

(-) 200mA DOME LIGHT OUTPUT

5

DARK BLUE

(-) 200mA STATUS OUTPUT

6

WHITE/BLACK

(-) 200mA AUX 3 OUTPUT

7

WHITE/VIOLET

(-) 200mA AUX 1 OUTPUT

8

ORANGE/BLACK

(-) 200mA AUX 4 OUTPUT

9

GRAY

(-) HOOD PIN INPUT (NC OR NO)

10

BLUE

(-) TRUNK PIN/INSTANT TRIGGER INPUT (N/C OR N/O)

11

WHITE/BLUE

ACTIVATION INPUT

12

VIOLET/WHITE*

TACHOMETER INPUT

13

BLACK/WHITE**

(-) NEUTRAL SAFETY /PARKING BRAKE INPUT

14

GREEN/BLACK 

(-) 200mA FACTORY ALARM DISARM OUTPUT

15

GREEN*

(-) DOOR INPUT

16

BROWN/BLACK

(-) 200mA HORN HONK OUTPUT

17

PINK

(-) 200mA IGNITION 1 OUTPUT

18

VIOLET*

(+) DOOR INPUT

19

VIOLET/BLACK

(-) 200mA AUX 2 OUTPUT

20

BROWN

(+) BRAKE SHUTDOWN INPUT

21

VIOLET/YELLOW

(-) 200mA STARTER OUTPUT

22

GRAY/BLACK 

(-) DIESEL WAIT TO START INPUT

23

ORANGE

(-) 200mA ACCESSORY OUTPUT

24

GREEN/WHITE

(-) 200mA FACTORY ALARM ARM OUTPUT

*       Required connection for manual transmission vehicles.

**  

Ground this wire for automatic transmission vehicles or connect to the park-

ing brake wire for manual transmission vehicles.

Important:

 NEVER connect 200mA low current outputs directly to a motor or high 

current device WITHOUT a relay

1 3 5

INSERTION/WIRE SIDE

2 4 6

24

23

PINK/WHITE

VIOLET/WHITE

GREEN/WHITE

BLACK/WHITE

1 2 3

INSERTION/WIRE SIDE

13

24

12

PINK/WHITE

VIOLET/WHITE

GREEN/WHITE

BLACK/WHITE

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

Adjusting the Sensor

Adjusting the sensor:

 

Important!

 Make sure the vehicle is disarmed. The shock sensor sensitivity can be 

adjusted by using a trimmer tool to turn the potentiometer.

 

Adjusting the sensor:

 

1. 

Disarm

 the system, 

turn

 the ignition Off.

2.  With the sensor mounted in its permanent location, locate the trim pot on the 

shock sensor module and using a trimmer tool: 

• 

Turn the potentiometer clockwise for increased sensitivity or 

• 

Turn it counterclockwise for decreased sensitivity

Note:

 You can test the new setting by cautiously impacting the vehicle with increas-

ing intensity while noting the LED status on the shock sensor. The LED turns on for a 

short duration for small impacts before turning off (indicating a warn-away trigger). 

The impact level required to fully trigger the alarm is indicated when the LED remains 

on for a longer duration before turning off.

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.

Important

: This unit can learn the tachometer with the analog input or through d2d 

using an interface module. The unit confirms which source is used by flashing the 

parking lights. When programming tach learning with:

• 

Analog, the parking lights flash one time.

• 

D2D interface module, the parking lights flash twice.

If the tachometer input on the system is connected to the vehicle, the d2d tachometer 

input is ignored.

Initializing 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 Bit-

writer can be used fine tune the starter output time in 50 ms 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 (on Control Center).

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)

10 flashes  

Alarm triggered **

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.

**   Alarm was triggered during remote start sequence. 

Startup Diagnostics:

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

module will notify you via your Responder LC3 remote control and will flash the park-

ing 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.

Long Term Event History

The system stores the last two full triggers in memory. These are not erasable. Each 

time the unit sees a full trigger, the older of the two triggers in memory is replaced by 

the new trigger. To access long term event history:

1.  With the ignition Off, 

press

 and 

hold

 the Control button (on Control Center).

2. 

Turn

 the ignition On.

3. 

Release

 the Control button.

4.  Within 5 seconds, 

press

 and 

release

 the Control button. The status LED flashes 

in groups indicating the last two zones that triggered the unit for 1 minute or 

until the ignition is turned off. Refer to table of zones (overleaf on page 2).

Note:

 The Warn Away triggers are not stored to memory and is not reported.

See full Installation Guide for more 

detailed information on this system.  

Such information and more can be 

found online at: 

www.directechs.com

Wiring Connections

Main Harness, 6-pin connector

H1/1

RED

(+)12VDC CONSTANT INPUT

H1/2

BLACK

(-) CHASSIS GROUND

H1/3

BROWN

(+) SIREN OUTPUT 

H1/4

WHITE/BROWN

PARKING LIGHT  ISOLATION WIRE - PIN 87a of onboard relay

H1/5

WHITE 

PARKING LIGHT OUTPUT 

H1/6

ORANGE

(-) 500mA 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, 10-pin heavy gauge connector

H3/1

PINK

(+) IGNITION 1 INPUT/OUTPUT

H3/2

RED/WHITE

(+) FUSED (30A) IGNITION 2 /  FLEX RELAY INPUT 87

H3/3

ORANGE

(+) ACCESSORY OUTPUT

H3/4

VIOLET

(+) STARTER OUTPUT  (CAR SIDE OF THE STARTER KILL)

H3/5

GREEN

(+) STARTER INPUT (KEY SIDE OF THE STARTER KILL)

H3/6

RED

(+) FUSED (30A) IGNITION 1 INPUT

H3/7

PINK/WHITE

(+) IGNITION 2 / FLEX RELAY OUTPUT

H3/8

PINK/BLACK

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

H3/9

RED/BLACK

(+) FUSED (30A) ACCESSORY/STARTER INPUT

H3/10

NC 

No Connection

Status LED

Control button

Menu

Wheel

Menu

Wheel

Menu

Wheel

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