Prestige APS-787E, Installation Manual

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 WIRING CONNECTIONS:  22 Pin Accessory Input/Output Harness   

PART # 1124300

 1 Green w/ White trace Wire:   

Entry Illumination Ground Output

This wire provides a 30 second ground output, (300 mA Max.), whenever the remote is used to disarm 

the alarm or to unlock the doors.  It also provides a continuous pulsed output whenever the alarm is 

triggered.  This wire should be connected to an external relay  and wired  to the vehicles interior entry 

lighting circuit whenever the optional Entry Interior Illumination feature is desired. 

 2 LT. Blue Wire:   

Ground Output While Running (-) 300mA

This wire provides a  300mA ground output that becomes active 1.5 seconds before the Remote Start 

Unit initializes and remains grounded while running plus an additional 2 seconds after the Remote Start 

Unit turns off.  In all of the applications described below, a relay will be required. 

The Light Blue wire can be used to accommodate the following situations:

A. Sensor By Pass:

If there is a Non Plug in Sensor used with the alarm system and it is not shunted during the Remote 

Start activation period, then vibration or noise from the running vehicle can cause the alarm to trigger.  

In this case, connect the Light Blue Wire to terminal #86 of a external relay.  Connect terminal # 85 of 

the relay to a fused + 12 volt battery source.  Cut the sensor's trigger wire and connect one end of the 

cut wire to terminal #30 and the other end of the cut wire to terminal #87a.  Just before the Remote 

Start unit is activated, the relay contacts will open, preventing the sensor's operation until the Remote 

Start unit shuts off.

B. Additional Ignition Output:

Some vehicle's may require more than three ignition outputs to start and keep the vehicle's engine 

running.  If this is the case, connect the Light Blue wire to terminal #86 of an external relay.  Connect 

terminal # 85 to a fused + 12 volt source.  Dependent on the vehicle's requirement, connect terminal 

#30, to a fused + 12 volt source, or to ground, and connect terminal 87 to the vehicle to supply the 

additional ignition source.

C. GM VATS Key Override:

If the vehicle has the General Motors VATS system installed, you will need to bypass the system while 

the vehicle is operating under the control of the Remote Start Unit.  To Do This:

1. Measure the resistance of the resistor pellet on the ignition key then select a resistor within 5% of 

the key's value

2. Locate the pair of VATS wires in the vehicle, usually a pair of thin gauge wires running from the 

ignition switch to the VATS control module.

NOTE:

   These wires are typically White w/ Black trace and Violet w/ Yellow trace, however in later model 

Cadillacs, they are run through an orange sleeve, and are either both Black, both Yellow, or both 

White wires.  Consult the factory service manual for additional information. 

3. Connect the Light Blue Wire from the Remote Start Unit to terminal #86 of an external relay.  Connect 

terminal #85 of the relay to a fused + 12 volt battery source.

4. Cut (#1) wire (as shown), and connect the ignition switch side of the cut wire to terminal #87a of the 

relay. Connect the other side of the (#1) wire to terminal #30.

5. Connect the previously selected resistor from terminal #87 to the second (#2) wire (as shown). 

NOTE:

 The above information and following diagram is for the GM VATS system only.