Prestige APS-57E Installation Manual page 10

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.
To LT Blue, (GWR) Wire
From Multi Pin Harness
To Fused + 12 Volt Battery Source
86
87a 87
Matching
Resistor
30
85
VAT Wire #1
VAT Wire #2 Cut Factory Wire
and route through
relay as shown
VATS Control Module
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