4
INSTALLATION INSTRUCTIONS
l. Physical Installation
Locate the module where it is convenient to access most of the signals in the list below.
Make sure that it does not interfere with the driver’s ability to control the vehicle.
Electrical connections are made with insulated
female quick connect terminals for .250”
blades. Don’t permanently mount the module until the connections and testing are
completed.
Connections List
P1
–
Constant B, Connect to fused (10-15A) un-switched Battery Positive
P2
–
Battery Ground
–
, Connect to un-switched Battery Negative or Common
P3
–
Interior Passenger Lights Control
P4
–
Horn Control
P5
–
Ignition / Accessory Input
P6
–
System Arm Input
P7
–
Front Door +
P8
–
Front Door
–
P9
–
alternate to shared P8 connection through isolation diode- not usually used,
see troubleshooting section and figure 6.
P10
–
Safety, System Reset
II. Basic Operation
Inputs
P1 & P2:
The SCC requires constant battery power. When inactive (sleep mode), the unit draws
less than 3 mA (0.003A) from the battery.
The fuses on the module protect the relays and the load, and also limit current through
BAT+ and BAT-. But if both fuses are in the NEG- position, then the sum of load
currents flows through P2 (BAT-) wiring. If both fuses are in the POS+ position, then
the sum of load currents comes from P1 (BAT+).
Select the battery wire sizes and/or fuse accordingly
.
P5
–
Connect to Ignition or Accessory
P6
–
Connect to an ARM signal, see instructions below.
P7 & P8: - Use either P7 or P8 or both to signal Front Door open
P7
–
Connect to a Front Door signal that goes to battery voltage when the door opens.
P8
–
Connect to a Front Door switch terminal that grounds when the door opens.
P9
–
Usually not used, if there is a problem, see troubleshooting section and figure 6.
P10
–
Connect to a dedicated Safety System Reset push button at the rear of vehicle.
Outputs
P4
–
Horn control, relay contact to either Battery POS (+) or Battery GND (-).
P5
–
Interior coach light control, relay contact to either Battery POS (+) or Battery GND
(-).
The Polarity Fuses on the module select the choice of relays 1) grounding contact or 2)
battery positive contact. The choice depends on control voltages needed to activate the
horn and light.
