Audiovox AA-RS10CS Installation Manual download pdf (Page 13)

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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 selectors 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 the slight re-configuration of the control switch

wiring and the addition of a 4000 series diode. Shown is a typical GM Park/Neutral ECM input circuit. To connect the

Audiovox 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 Audiovox Remote Start Unit in.

2. Connect the Cathode, (Striped) end, of a 4000 series diode to this reference wire.

3. Connect the Anode, (Non Striped) end, of the diode to one side of the Remote Starts enable switch.

4. Connect the other side of the enable switch to the Black/White enable input wire of the Remote Start unit. The ref-

erence diagram below shows a typical GM B Body ECM reference wire and how it is to be connected to the Remote

Start Unit.

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 re-configured to allow a margin of safety and will

prevent the vehicle with a Mechanical Neutral Start Switch from starting in gear.

AUDIOVOX ADVISES 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

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Audiovox AA-RS10CS Installation Manual Page 13