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3. Transponder Key Override:

To bypass the system while the vehicle is operating under the control of the Remote Start system. Connect the
BLUE w/BLACK wire to the NEG trigger input of the accessory bypass.

GRAY w/BLACK: Diesel Wait To Start

For Diesel glow plug preheat circuits, this Wait To Start input will allow the ignition to keep the glow plugs active
for the vehicles automatic time out period before cranking the starter motor.  If the GRAY w/BLACK is connected
to the glow plug wire, this will take precedence over the timing setting and the Gas/Diesel programming in the
feature programming chart.  Use this wire if you do not want to set the timing of the glow plug preheat circuit as
shown in the programmable features chart #8.

PURPLE w/WHITE: Tach Sensor Input

This wire will continually monitor the engine tach rate while the unit is under power of the Remote Start system.
This wire will be routed to the vehicle ECM tach input or through the firewall into the engine compartment and
connect to the negative side of the ignition coil.  This Remote Start system learns the tach rate of the vehicle and
in most cases will operate properly from one multi coil pack regardless of the number of cylinders.  If the vehicle
has a single coil system for each cylinder, it may be necessary to connect this wire to more than one coil for
proper tach reference.  Shown in the programmable features chart #4.

WIRING THE 4 PIN HARNESS:

This harness provides low current outputs to control various functions in the vehicle during different stages of the
Remote Start system's operation.  Understanding these outputs and the time in which they occur will allow you to
determine if they are needed for the particular vehicle you are working on, as well as how to use them.

BLACK w/YELLOW: Ground Output During Start (Crank)

The BLACK w/YELLOW wire will provide a 300mA ground output  while the starter output of the Remote Start
system is active.  This output can be used to activate the Bulb Test wire found in some GM vehicles.

GREEN w/WHITE: Pulsed Ground Output After Shutdown

The GREEN w/WHITE wire will provide a 1 second 300mA pulsed ground output after the Remote Start system
shuts down.  This output will occur regardless of whether the circuit times out or is manually terminated.
Typically this output will be used to re-lock the vehicle doors if the doors unlock automatically when the ignition
circuit transitions to OFF.

BLUE: Pulsed Ground Output After Start

The BLUE wire will provide a 1 second 300mA pulsed ground output after the vehicle is started under control of
the Remote Start system. Typically this wire will be used to re-lock the vehicle doors if the doors unlock
automatically when the factory anti-theft system is disarmed.

Summary of Contents for CA 421

Page 1: ... This device may not cause harmful interference and 2 This device must accept any interference received including any interference that may cause undesired operation Warning Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment CA 421 Installation Instructions Kit Contents 1 Control Module 2 1 Button High Fr...

Page 2: ...IS G R OUND T AC H INP UT T O ALAR MS IG NIT ION INP UT B LAC K Y E LLOW G R E E N WHIT E B LUE G R E E N B LAC K P ULS E DUR ING C R ANK P ULS E AF T E R S HUT DOWN P ULS E AF T E R S T AR T P ULS E B E F OR E S T AR T NE UT R AL S AF E T Y INP UT P R OG R AMMING P OR T C A 421 6 5 4 3 2 1 P UR P LE P INK R E D P INK WHIT E OR ANG E R E D IG NIT ION 1 12V C ONS T ANT IG NIT ION 2 HV AC OUT P UT 1...

Page 3: ...is opened For direct mounting a 1 4 hole must be drilled Carefully check behind the chosen location to insure the drill will not penetrate any existing factory wiring or fluid lines Drill a 1 4 hole in the desired location and thread the pin switch into it If using the mounting bracket first secure the bracket to the desired location and secure the pin switch in the threaded mounting bracket hole ...

Page 4: ... Ignition 2 Output Connect this wire to the ignition 2 wire from the ignition switch This wire will show 12 volts when the ignition key is turned to the ON or RUN position and in some cases the START position This wire will show 0 volts when the key is turned to the OFF and ACCESSORY positions NOTE See programmable features 2 for programming this wire to function as an ACCESSORY wire ORANGE Access...

Page 5: ... can result in serious injury Route the wire to the pin switch and connect it using the bullet connector provided BROWN w RED Wire Positive Brake Input Any time 12 Volts is applied to the BROWN w RED wire the Remote Start system will stop operating even if the signal is received from the transmitter If the brake light switch in the vehicle switches 12 Volts to the brake light circuit connect the B...

Page 6: ...mains grounded while running plus an additional 4 seconds after the Remote Start system turns off In all of the applications described below a relay will be required The BLUE w BLACK wire can be used to accommodate the following situations 1 Shock Sensor Bypass If there is Shock Sensor used with an alarm system and it is not shunted during the Remote Start activation period then vibration from the...

Page 7: ...nder it may be necessary to connect this wire to more than one coil for proper tach reference Shown in the programmable features chart 4 WIRING THE 4 PIN HARNESS This harness provides low current outputs to control various functions in the vehicle during different stages of the Remote Start system s operation Understanding these outputs and the time in which they occur will allow you to determine ...

Page 8: ...gnition on To prevent the system from unlocking the vehicle when the remote start cycle begins wire the factory disarm unlock output with a relay as illustrated below 2 Pin Blue Connector Programming Button Connect the 2 pin programming plug into the mating connector of the control module Note the programming button is built into the antenna 3 Pin Antenna Receiver Connector Black Connector Plug th...

Page 9: ...hen back to ON The parking lights will turn OFF 4 Press and release the program button 2 times the parking lights will flash once indicating you are in programmable feature 1 5 Press the vehicle s brake to change the selection of programmable feature 1 OR use the program button to advance to the next feature Each button press advances one feature the parking lights will flash indicating the featur...

Page 10: ...lash and the number of flashes will indicate the reason for shutdown on the last remote start attempt The indications are as follows 1 Flash 5 10 15 or 20 minute run timer expired 2 Flashes Low or No tach signal received 3 Flashes Positive or Negative input shut down 4 Flashes Neutral safety input 5 Flashes RF Shutdown command received 6 Flashes High RPM signal over speed shut down 7 Flashes Tach ...

Page 11: ...k or Neutral When installing a Remote Start system it is imperative that the Purple Starter wire be connected to the ignition switch side of the Neutral safety switch To test the integrity of the Neutral Safety Circuit 1 Set the vehicle parking brake 2 Block the drive wheels to prevent vehicle movement 3 Temporarily disconnect the Brown Red positive shut down wire from the vehicle s brake switch 4...

Page 12: ... from all hot and moving parts that they may come in contact with under the dash board or in the engine compartment areas CAUTION Avoid the area around the steering shaft and column as wires can wrap around these mechanisms and inhibit the safe operation of the vehicle 4 Apply the Caution labels supplied with this kit to a conspicuous area in the engine compartment Make sure to clean the surface b...

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