Key In Sensor Circuits - Prestige APS-57E Installation Manual

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 effect 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
To connect to the key in sensor as shown in Method 1:
Ignition Key In Sense Wire
Closes With Key In Cylinder
Connect To Negative
Remote Start
Safety Shut Down Wire
1. Locate the control wire that connects the drivers door pin switch to the key in sensor switch.
2. Cut this wire and connect the ignition cylinder side to chassis ground.
3. Locate the key in sensor switch wire that connects the chime module to the ignition cylinder .
4. Cut this wire and connect the ignition cylinder side to terminal 30 of a P&B VF45F11 or equivalent relay.
5. Connect the cathode (striped) side of a 4002 series diode to this same wire, and connect the (non striped)
side to the negative shut down safety wire (Gray / Black) of the Audiovox Remote Start Unit.
6. Connect terminal 86 of the relay to a fused +12 Volt constant battery source.
7. Connect terminal 87 of the relay to the Chime Module side of the previously cut wire in step 4.
8. Connect terminal 85 of the relay to the Drivers Door side of the pin switch wire previously cut in step 2.
86
87a 87
30
To Fused + 12 Volt
85
Battery Source
1N4002 Diode
1N4002 Diode
17
Drivers Door
Pin Switch
Key In
Chime Module
To Hood Pin Switch
Safety Shut Down
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