Code Alarm CA 521 User manual

1
Avoid mounting components or
routing wires near hot surfaces
Avoid mounting components or
routing wires near moving parts
Tape or loom wires under hood
for protection and appearance
Use grommets when routing wires
through metal surfaces
Use a voltmeter for testing and
verifying circuits
Installation Precautions:
Roll down window to avoid locking
keys in vehicle during installation
FCC COMPLIANCE
ThisdevicecomplieswithPart15oftheFCCrulesandwithRSS-210ofIndustryCanada.Operationissubjecttothefollowingtwoconditions:
1.Thisdevicemaynotcauseharmfulinterference, and
2.This device must accept any interferencereceived,includingany interference that may cause undesiredoperation.
Warning!
Changesor modifications not expressly approved bythepartyresponsible for compliance could void theuser’sauthority to operate the equipment.
CA 521 Installation Instructions
Kit Contents
(1) - CA-521 Control Module
(2) - 4 Button High Frequency Transmitters
(1) - Receiver with Pushbutton and LED
(1) - Multi Pin Input/Output Harness
(1) - Six Pin Harness
(1) - 2 Pin Door Lock Harness
(1) - Hood Pin Switch
(1) - Remote Start Warning Label
(1) - Literature Package
Note:Do not install this system on a vehicle
that is not equipped with the following:
• Automatic Transmission
• Fuel Injection
• Ignition / Shift Interlock
Technical Support [phone]
or go to
http://techservices.codesystems.com
PROFESSIONAL INSTALLATION STRONGLY RECOMMENDED

Black/White neutral safety wire might be missing
BLACK/YELLOW ------ PULSE DURING CRANK (-)
BLUE --------------------- (-) UNLOCK
PROGRAMMING BUTTON PORT
DATA INTERFACE PORT
CA 521
L.E.D. PORT
TRACKING PORT
PURPLE ---------------- STARTER
PINK --------------------- IGNITION 1
RED --------------------- 12 VOLTS BATTERY
PINK/WHITE ----------- IGNITION 2
ORANGE --------------- ACCESSORY
RED ---------------------- 12 VOLTS BATTERY
ORANGE ---------------- ARMED OUTPUT (-)
PURPLE/WHITE ------ TACH INPUT
BLACK ------------------- GROUND
RED/WHITE ---------- TRUNK (-)
BLUE/BLACK ---------- ACTIVE OUTPUT (-)
GRAY/BLACK --------- WAIT TO START INPUT (+)
GRAY -------------------- HOOD PIN INPUT (-)
BLACK/WHITE -------- NEUTRAL SAFETY INPUT (-)
ORANGE/RED -------- DEFROST OUTPUT (-)
BROWN/RED ---------- BRAKE INPUT (+)
WHITE ------------------ PARKING LIGHT OUTPUT (-/+)
WHITE/RED ----------- PARKING LIGHT POLARITY (-/+)
ORANGE/BLACK ----- PARKING BRAKE INPUT (-)
GREEN ------------------ (-) LOCK
LT.GREEN/BLACK ---- FACTORY DISARM (-)
LT. BLUE ----------------- PULSE AFTER START (-)
GREEN/WHITE -------- PULSE AFTER SHUTDOWN (-)
ANTENNA PORT
L.E.D PORT
ANTENNA PORT
PROGRAM BUTTON PORT
CA 521 SYSTEM LAYOUT

3
1. SIX PIN POWER HARNESS
Battery Power 1 (RED)
Battery Power 2 (RED)
Locate the vehicle battery wire(s) at the ignition switch.
Verification: These wires will register voltage in all positions of the ignition switch.
Connect the RED wires to the vehicle’s battery wire.
Note: Remove the 30 Amp fuse out of each fuse holder until the installation is complete
IMPORTANT!
If the vehicle is equipped with more than one battery wire at the ignition switch, connect the RED
wiretoseparatevehiclebatterywires.
Starter Output (PURPLE)
Locate the vehicle’s starter wire at the ignition switch.
Verification: This wire registers voltage only in the start (crank) position of the ignition switch.
Connect the PURPLE wire to the vehicle’s starter wire.
Ignition 1 Output (PINK)
Locate the vehicle’s Ignition 1 wire at the ignition switch.
Verification: This wire registers voltage when the key is turned to the ON (or RUN) position. The voltage
does not drop out when the key is turned to the START(or CRANK) position.
Connect the PINK wire to the vehicle’s Ignition 1 wire.
Accessory 1 (Heater/AC) Output (ORANGE)
Locate the vehicle’s accessory wire at the ignition switch.
Verification: This wire registers voltage when the key is turned to the ON (or RUN) position, but not the ACC
(Accessory) position. The voltage drops out when the key is turned to the START(or CRANK) position.
Connect the ORANGE wire to the vehicle’s accessory wire.
Selectable Ignition 2 Output / Accessory 2 Output (PINK/WHITE)
Locate the vehicle’s ignition 2 or accessory 2 wire at the ignition switch. Refer to the Ignition 1 or Accessory
1 wires above for verification.
Connect the PINK/WHITE wire to the vehicle’s ignition 2 or accessory 2 wire.
IMPORTANT!
The factory setting for the PINK/WHITE wire is ignition 2 output. Refer to programming option 2 on
page14to change the settingtoaccessory 2 output.

4
2. THIRTEEN PIN HARNESS
Chassis Ground Source (-) (BLACK)
Connect the BLACK wire to a solid chassis ground point using the supplied ring terminal and 1/2” long
screw. Scrape away paint from the grounding point to ensure a good connection. The recommended
grounding point is a painted metal surface in the driver’s side kick panel area.
Note: Do not ground the BLACK wire with any other vehicle components.
Hood Pin Input / Shutdown (-) (GRAY)
Mount the supplied hood pin switch in an area allowing the hood to depress the switch at least 1/4” when
closed. Use care to make sure the hood pin switch is mounted away from water drain paths. If necessary,
the included bracket may be used to mount the hood pin switch away from rain gutters or for mounting
against the fire wall. Carefully check behind the chosen location for fluid lines or electrical wiring. The hood
pin switch must be mounted into a metal chassis ground surface.
For direct mounting, drill a 1/4” hole and thread the hood pin switch into the hole and tighten with a 7/16”
nut driver.
Route the GRAY wire through an existing grommet (if available) in the firewall and connect to the mounted
hood pin switch.
IMPORTANT!
The hood pin switch will prevent the vehicle from remote starting if the vehicle’s hood is open.
Failure to install the hood pin switch may result in personal injury or property damage.
Brake Input/Shutdown (+) (BROWN/RED)
Locate the vehicle’s brake light wire at the brake pedal mounted switch.
Verification: This wire registers positive voltage when the brake pedal is pressed.
Connect the BROWN/RED wire to the vehicle’s brake light wire.

5
2. THIRTEEN PIN HARNESS, CONTINUED
Parking Light Polarity (+/-) (WHITE/RED)
Parking Light Output (+/-) (WHITE)
Positive Switching Parking Lights:
Locate the parking light output wire at the vehicle’s light switch.
Verification: This wire registers positive voltage when the parking lights are turned on.
Connect the WHITE/RED wire to a 15 Amp max fused battery source.
Connect the WHITE wire to the parking light output wire at the vehicle’s light switch.
Negative Switching Parking Lights:
Locate the parking light output wire at the vehicle’s light switch.
Verification: This wire registers ground when the parking lights are turned on.
Connect the WHITE/RED wire to a good chassis ground.
Connect the WHITE wire to the parking light output wire at the vehicle’s light switch.
Ground When Armed Output (-) 300mA (ORANGE)
This wire will show Ground when the system is Armed. This wire is used for controlling window modules or
additional sensors.
Tach Signal Input (PURPLE/WHITE)
Locate the vehicle’s ignition coil or fuel injector in the engine compartment.
Verification: Refer to Vehicle Wire Color and Location Chart for the wire color and location, or test using
the following procedure:
1. Set voltmeter toAC VOLTS.
2. Attach positive lead of the volt meter to a constant 12-volt source.
3. Attach negative lead of the volt meter to the wire being tested.
4. Start the engine.
5. Have someone press on the gas pedal slightly as you monitor the meter. If connected to the correct
wire, the voltage reading will increase as the engine’s RPM increases.
Connect the PURPLE/WHITE wire to the negative side of the vehicle ignition coil or fuel injector.

6
2. THIRTEEN PIN HARNESS, CONTINUED
Wait-To-Start Input (+) (GRAY/BLACK)
Locate the Wait-To-Start light wire at the instrument panel.
Verification: This wire registers positive or negative voltage when the wait-to-start light illuminates.
For Positive switching circuits follow the diagram below.
For Negative switching circuits follow the diagram below. Use Code Alarm part HDRLY (an SPDT relay, not
included).
NOTE!
The CA-521 has an optional Wait-To-Start feature that provides a pre-set wait-to-start time.
When using this feature it is not necessary to connect the GRAY/BLACK wire above.
GRAY/BLACK (+) Diesel
Wait-To-Start Wire
Vehicle Control Modul
e
Ground
Wait-To-Start Bulb
At Instrument Panel
1N4004 Diode
30
87
87a
86 85
Vehicle Control Module
Ignition
Ignition
Wait-To-Start Bulb
At Instrument Panel
GRAY/BLACK (+) Diesel
Wait-To-Start Wire

7
2. THIRTEEN PIN HARNESS, CONTINUED
Active Output (-) 300mA (BLUE/BLACK)
The Ignition 3 output wire provides a ground output when the remote start function is activated and remains
active for 4 seconds after the remote start is shutdown. The Ignition 3 output wire can be used for several
functions listed below. If this wire will be used for multiple applications a 1 amp diode is required inline
with the stripe facing the control module.
Factory transponder (coded key) bypass. See your sales associate for details.
General Motors VATS bypass, see diagram 3 below. Use Code Alarm part HDRLY (an SPDT relay, not
included).
Ignition 3 output, see the diagram on the left below. Use Code Alarm part HDRLY (an SPDT relay, not
included).
Accessory 2/3 output, see the diagram on the right below. Use Code Alarm part HDRLY (an SPDT relay,
not included).
Fused +12 Volt
Battery Source
30
87
87a
86 85
BLUE/BLACK ActiveOutput
Wire
VATS Control Module
Matching Value
Resistor
Ignition Switch
VATS Wire #1, WHITE or WHITE/BLACK
VATS Wire #2, WHITE or VIOLET/WHITE
X CUT
Fused +12 Volt
Battery Source
30
87
87a
86 85
BLUE/BLACK ActiveOutpu
t
Wire
To Vehicle's2nd or 3rd
Ignition Wire
Jump To PINK
Ignition Output
Wire From
Control Module
Fused +12 Volt
Battery Source
30
87
87a
86 85
BLUE/BLACK ActiveOutpu
t
Wire
To Vehicle's2nd or 3rd
Accessory Wire
Jump To ORANGE
Accessory Output
Wire From
Control Module

8
2. THIRTEEN PIN HARNESS, CONTINUED
Selectable Parking Brake/External Start Input (for optional Turbo Timer / External Remote Start feature)
(-) (GRAY/RED)
This wire is selectable between Turbo Timer Mode or External Start trigger.
Parking Brake Verification: This wire registers ground when the parking brake is engaged.
Connect the GRAY/RED wire to the parking brake wire for Turbo Timer mode. For External Start,
momentarily supplying this wire with a ground signal will activate the remote start sequence.
Optional Rear Defrost Output (-) 300mA (ORANGE/RED)
Locate the vehicle’s rear window defrost wire.
Verification: This wire will register either positive voltage or ground when the rear defroster is turned on.
Connect the ORANGE/RED wire to the vehicle defrost wire if the system
is negative.
If the system is positive, connect the ORANGE/RED wire as shown in the diagram below. Use Code Alarm
part HDRLY (an SPDT relay, not included).
Trunk Release Output (-) 300mA (RED/WHITE)
Locate the vehicle’s trunk release wire at the trunk release switch.
Verification: This wire will register either positive voltage or ground when the trunk release is activated.
Connect the RED/WHITE wire to the vehicle’s trunk release wire if the system is negative
If the system is positive, connect the RED/WHITE wire as shown in the diagram below. Use Code Alarm
part HDRLY (an SPDT relay, not included).
Fused +12 Volt
Battery Source
30
87
87a
86 85
ORANGE/RED Rear
Defrost Output Wire
To Rear Window
Defrost Grid
Rear Defrost
Control Relay
Fused +12 Volt
Battery Source
30
87
87a
86 85
RED/WHITE (-) Trunk
Release Output Wire
To Electric Trunk
Release Motor
Electric Trunk
Release Switch
Trunk

9
3. FOUR PIN INTERFACE OUTPUT HARNESS
Factory Disarm / Pulse Before Start (-) 300mA (LIGHT GREEN/BLACK)
Locate the factory alarm disarm wire at the key cylinder inside the driver’s door.
Verification: This wire registers ground the key is turned to the unlock position in the driver’s door key
cylinder.
Connect the LIGHT GREEN/BLACK wire to the factory alarm disarm wire.
Pulse After Start (-) 300mA (LIGHT BLUE)
This wire is usually used to re-lock the vehicle’s doors upon remote start if necessary. This wire supplies a
pulsed 300mA output following the remote start sequence.
Pulse After Shutdown (-) 300mA (GREEN/WHITE)
This wire is usually used to re-lock the vehicle’s doors if they unlock upon remote start shutdown. It can
also be used to pulse a door pin switch wire to prevent the vehicle’s accessories from staying on after
remote start shutdown.
Pulse During Crank (-) 300mA (BLACK/YELLOW)
Locate the vehicle’s second starter (crank) wire at the ignition switch. (If equipped)
Verification: This wire registers voltage only in the start (crank) position of the ignition switch.
Connect the BLACK/YELLOW wire as shown in the diagram below. Use Code Alarm part HDRLY (an SPDT
relay, not included).
Fused +12 Volt
Battery Source
30
87
87a
86 85
BLACK/YELLOW Pulse
During Crank Wire
To Vehicle's 2nd
Starter Wire
Jump To PURPLE
Starter Output
Wire From The
Control Module
2. THIRTEEN PIN HARNESS, CONTINUED
Neutral Safety Input (-) (BLACK/WHITE)
The BLACK/WHITE wire is the neutral safety input, connect this to the vehicle's wire that shows NEG (-)
when the gear selector is in park or neutral. The remote start feature of this unit will not operate unless
this wire is connected. *If Black/White wire is missing insert a wire into the cavity and ground it.*

10
4. TWO PIN DOOR LOCK/UNLOCK HARNESS
Negative Lock Output (GREEN)
Negative Unlock Output (BLUE)
The door lock / unlock outputs are designed to control several different types of systems which may require
additional parts. Please review the wire and location chart to see which type of door lock system is in the
vehicle. The most common types are shown in the diagrams below.
Negative Switching:
Locate the lock / unlock wires at the vehicle’s lock / unlock switch.
Verification: These wires will register ground when the lock/unlock switches are activated.
Connect the GREEN and BLUE wires shown in the diagram below.
Positive Switching:
Locate the lock / unlock wires at the vehicle’s lock / unlock switch.
Verification: These wires will register positive voltage when the lock/unlock switches are activated
Connect the GREEN and BLUE wires shown in the diagram below.
Reverse Polarity (5-Wire Door Locks)
Locate the lock / unlock wires at the vehicle’s lock / unlock switch.
Verification: These wires will rest at ground and register positive voltage when the lock/unlock switches are
activated.
Connect the GREEN and BLUE wires shown in the diagram below. Use Code Alarm part HDRLY (an SPDT
relay, not included).
30
87
87a
86 85
Cut
Fused +12 Volt
Battery Source
Lock
Unlock
Master Door
Lock Switch
X
30
87
87a
86 85
X
To Door Lock
Actuators
To Door Lock
Actuators
GREEN (-) Lock Output
BLUE (-) Unlock Output
Fused +12 Volt
Battery Source
Cut
Lock
Unlock
87
87a
86 85
30
87
87a
86 85
30
Vehicle Door Lock
Control Relays
Fused +12 Volt
Battery Souce
Fused +12 Volt
Battery Souce
GREEN (-) Lock Output
BLUE (-) Unlock Output
Positive Switching
Lock
Unlock
Vehicle Door Lock
Control Relays
GREEN (-) Lock Output
BLUE (-) Unlock Output
N
egative Switching

11
4. TWO PIN DOOR LOCK/UNLOCK HARNESS, CONTINUED
Negative Lock Output (GREEN)
Negative Unlock Output (BLUE)
The door lock / unlock outputs are designed to control several different types of systems which may require
additional parts. Please review the wire and location chart to see which type of door lock system is in your
vehicle. The most common types are shown in the diagrams below.
One wire Positive / Negative Multiplexed (resistor based system)
Locate the lock / unlock wire at the vehicle’s lock / unlock switch.
Verification: This wire will show variable positive voltage or ground when the switch is activated. Please
consult the wire and location chart for specific resistor values and polarity for your vehicle.
Connect the GREEN and BLUE wires shown in the diagram below. Use Code Alarm part HDRLY (an SPDT
relay, not included).
Aftermarket door lock / unlock actuators (not supplied use Code Alarm part # DA1 ):
Connect the GREEN and BLUE wires shown in the diagram below. Use Code Alarm part HDRLY (an SPDT
relay, not included).
30
87
87a
86 85 Fused +12 Volt
Battery Source
Lock
Unlock
Door
Lock Switch
30
87
87a
86 85
GREEN (-) Lock Output BLUE (-) Unlock Output
Fused +12 Volt Battery Source
For Positive Polarity Systems
Or
Chassis Ground For
Negative Polarity Systems
Resistor Resistor Vehicle Door Lock
Control Relays
30
87
87a
86 85
Fused +12 Volt
Battery Source
Door Lock
Actuator
30
87
87a
86 85
Chassis
Ground
Chassis
Ground
GREEN (-) Lock Output
BLUE (-) Unlock Output
Fused +12 Volt
Battery Source
M

12
5. PROGRAM SWITCH AND ANTENNA / RECEIVER MOUNTING
3 Pin Antenna/Receiver Connector: (White Connector)
Mount the supplied antenna/receiver to a clear spot on the vehicle's windshield that will not block the
driver's vision. A good location is usually high on the windshield near the rear view mirror. Be careful not to
mount the antenna/receiver on any metallic window film, as this will effect system range. Route the
antenna/receiver cable to the control module and plug into the 3 pin black connector.
2 Pin Valet/Program/Override Push-Button: (Blue Connector)
The Gray wire populated in the two pin blue connector is the program/valet/override input of the Remote
Start/Security unit.
2 Pin LED Harness: (Off White Connector)
The Blue wire populated in the two pin white connector controls the LED.
4 Pin Data Bus Interface Port: (Brown Connector)
This 4 pin port is used for Code Alarm Door Lock and Transponder Databus Interfaces to communicate
with the vehicle's Databus. When using the DBI port to control the Code Alarm Door Lock and Transponder
Interface modules the following options may be available. Please refer to the D2D (Data to Data) function
list available per vehicle on the tech service web site.
Tach Input Brake Safety Shut Down
Trunk/Hatch Open Diesel Glow Plug Input
Door Lock Control Passlock / Passkey Interface (GM Only)
Dome Light Supervision Transponder Interface Activation
Factory Alarm Arm / Disarm Manual Arm / Disarm Inputs (factory keyless controls system)
Powering-up the remote start system
Turn the ignition key to the ON position.
Plug (2) 30 Amp fuses into the fuse holders.
Turn the ignition key to the OFF position.
Mounting the Control Module
Using long tie straps mount the control module to an underdash bracket or large wire harness, making
sure it does not interfere with any moving parts in the vehicle.
Using tie straps secure any wiring to prevent it from hanging or rubbing against any panels or bracket.
Re-install any vehicle panels removed during installation.

13
6. SYSTEM PROGRAMMING
Transmitter Programming
1. Enter the vehicle and turn the ignition key to the ON position.
2. Press and release the programming switch 3 times.
The dash mounted LED will flash 1 time and the parking lights will flash 1 time, indicating the system is
ready to accept programming for LOCK.
3. Press and hold the LOCK icon button on the transmitter you wish to program for 4 seconds or until you see
a long flash of the parking lights.
Repeat step 3 for each additional transmitter you wish to program.
4. Turn the ignition key to the OFF position and test the functions on the transmitters.
IMPORTANT!!!
IF YOUALLOW MORE THAN 15 SECONDS TO PASS BETWEEN STEPS, THE PROGRAMMING
MODE WILL BE TERMINATED
Programming Tach Rate
1. Enter the vehicle and turn the ignition key to the ON position.
2. Press and release the programming switch 3 times.
3. Immediately turn the ignition key to the OFF position.
4. Push and hold the programming switch.
5. Start the vehicle using the ignition key (while continuing to hold the programming switch).
6. When the unit senses the tach signal, the parking lights will begin to flash.
7. Release the programming switch.
The parking lights will turn on for 3 seconds to indicate that the tach signal is stored and the unit has exited
tach programming mode.
IMPORTANT!!!
A VALID TACH SIGNAL IS REQUIRED FOR ALL VEHICLE APPLICATIONS. THE SYSTEM WILL
NOT OPERATE UNTIL THE TACH RATE HAS BEEN PROGRAMMED.

14
6. SYSTEM PROGRAMMING, CONTINUED
Programming Selectable Features
1. Enter the vehicle and turn the ignition key to the ON position.
2. Press and release the programming switch 3 times.
3. Immediately turn the ignition key OFF, then back ON.
4. Press and release the programming switch 2 times.
5. Use the KEY icon button on the transmitter to advance to the feature you want to change.
The parking lights will flash a number of times indicating which option you have accessed.
6. Use the LOCK icon button on the transmitter to change the setting of an option.
The parking lights will flash a number of times indicating the feature setting (see chart below).
IMPORTANT!!!
IF YOUALLOW MORE THAN 15 SECONDS TO PASS BETWEEN STEPS, THE PROGRAMMING
MODE WILL BE TERMINATED
OPTIONPROGRAMMING CHART
FEATURESELECTION 1 FLASH 2 FLASH 3FLASH 4 FLASH DEFAULT
1. Run Time 5Min. 10 Min. 15 Min. 20 Min 10 Min.
2. Ign. 2 or Acc. 2 ACC. 2 Ign. 2 Ign. 2
3. Parking Lights Steady Flash Steady
4. Tach Mode Tachless Tach DBI Input Tach
5. Voltage Level >.5V B4 start <.5V B4 start >.5V B4 start
6. Troubleshooting Off On Off
7. Door Locks 1sec/1sec 3.5sec/3.5 sec 1sec/Dbl 1sec 1sec/1sec
8. Crank Time 0.8 sec 1.0 sec 1.5 sec 2.0 sec 1.0 sec
9. Gas/Diesel Gas Diesel 10 Diesel 15 Diesel 20 Gas
10.Turbo Timer Off 3 min 5 min 10 min Off
11.Defrost Output Pulsed 10 min Pulsed
12. One/Two BTN Start 1 BTN 2 BTN 2 BTN
13. Parking Brake External Start P. Brake P. Brake

15
7. SYSTEM TESTING
Hood Pin Safety Shutdown
The Hood Pin Switch Safety Shutdown is to prevent the remote start system from being activated while a
mechanic or vehicle owner is performing routine maintenance.
To test the integrity of this circuit:
1. With the driver’s window in the down position, start the vehicle using the transmitter.
2. Reach inside the car and pull the hood release.
3. Raise the vehicle’s hood and verify that the remote start system shuts down.
If the system fails this test, recheck your hood pin switch connection to the GRAY wire.
Warning!!
Do not use the remote start system until you confirm operation
of the hood pin safety shutdown
Brake Safety Shutdown
The Brake Safety Shutdown is to shutdown the remote start system if the brake pedal is pressed.
To test the integrity of this circuit:
1. Sitting in the driver’s seat, remote start the vehicle using the transmitter.
2. Press the brake pedal and confirm that the remote start system shuts down.
If the system fails this test, recheck your brake switch connection to the BROWN/RED wire.
Warning!!
Do not use the remote start system until you confirm operation
of the brake safety shutdown

16