User's Manual

Safety Switch provided below will help you to determine if the vehicle you are working on has this type of safety switch and
will provide alternative wiring methods to accommodate this situation.
MECHANICAL NEUTRAL SAFETY SWITCH CONSIDERATIONS:
Mechanical neutral safety switch configurations differ slightly in that they do not offer the same level of safety when installing a
remote start device. Often when the ignition switch is turned off while the gear selector is in any position other than park or neutral,
the mechanical function will not allow the key to be turned to the start position or be removed from the ignition cylinder. This
configuration prevents mechanical operation while the vehicle is in gear but offers no consideration for electrical operation.
Because of this potential problem, this installation requires the additional connection of a safety wire from the remote start device
to the vehicle PARK/NEUTRAL ECM input or the vehicle key in sensor. This connection will prevent remote start operation if the
key is left in the ignition switch regardless of the gear selector position.
PARK/NEUTRAL ECM INPUT:
The Park/Neutral ECM input is the preferred method of installation. This not only maintains the integrity of the factory circuit, it is
also the easiest to install, providing the vehicle you are working on has this ECM input.
The installation required for this application (shown below), indicates in the slight reconfiguration of the control switch wiring.
Shown is a typical GM Park/Neutral ECM input circuit. To connect the Remote Start unit to the GM Park/Neutral ECM input:
1. Locate the Orange/Black reference wire in the “C2” connector found at the ECM in GM B Body vehicles or, locate the
equivalent reference wire in the vehicle you are installing the Remote Start Unit in.
2. Connect the BLACK/WHITE Neutral Safety Switch wire (H6/8) to this reference wire.
NOTE: If the optional remote starts enable toggle switch is installed, connect the one side the enable switch to this reference wire
and connect the other side of the enable switch to the BLACK/WHITE Neutral Safety Switch wire (H6/8) of the Remote Start unit.
The reference diagram on the next page shows a typical GM B Body ECM reference wire and how it is to be connected to the
Remote Start Unit.
Ignition
P1
2
DN
R
Electronic Control Module (ECM)
Solid State, Do Not Measure
Resistance
To Neutral Safety
Switch Input wire
Black/White
(
H10/1
)
Optional Enable Switch
KEY IN SENSOR CIRCUITS:
If the vehicle you are working on does not have or you cannot locate the ECM reference wire, there are two alternatives available.
Although not preferred, the vehicle Key In Sensor may be reconfigured to allow a margin of safety and will prevent the vehicle with
a Mechanical Neutral Start Switch from starting in gear.
WE ADVISE THAT YOU MAINTAIN THE FACTORY CIRCUIT WHENEVER POSSIBLE. The following two circuits may be used
only if the above circuit is not available.
NOTE: When completing an installation using either of the following key in sensor circuits, if the operator inserts the ignition key
while the vehicle is running under the control of the Remote Start, the vehicle will shut down. This must be explained to the
operator as it is in contrast to the normal operation of a vehicle utilizing an electrical neutral start switch and is inconsistent with the
operators manual.
Additional information concerning Key in Sensor methods 1&2 are listed below and should be reviewed before considering either
alternative.
Method 1 will allow the safety required for the remote start unit and prevent the vehicle from starting while in any gear other than
Park or Neutral while the key is in the ignition cylinder however, if the key is left in the ignition switch and the door is left opened,
the added relay will be energized causing a 150mA drain on the battery.
Method 2 will allow the safety required for the remote start unit and prevent the vehicle from starting while in any gear other than
Park or Neutral while the key is in the ignition cylinder. However, the original factory key in chime module will not alert the owner
that the key has been left in the ignition switch. In addition, this may also affect other warning tones such as the light on reminder.
These situations should be carefully considered before altering the vehicle’s wiring and must be fully explained to the consumer.
METHOD 1
+ 12 V
Ignition Key In Sensor
Switch Closes with Key
In Ignition Cylinder
Drivers Door Pin Switch
87a
86
3087
85
Key In
Chime Module
Connected to (-) Negative
Safety Input Wire
White/ Black
(
H10/14
)
To Hood Pin Switch
Safety Shut Down (
H10/14
)
1N4003
+
To connect to the key in sensor as shown in method 1:
A. Locate the control wire that connects the driver’s door pin switch to the key in sensor switch.
B. Cut this wire and connect the ignition cylinder side to chassis ground.
C. Locate the key in sensor switch wire that connects the chime module to the ignition cylinder.