Roadmaster AddaBRAKE 8800 - Page 7

Before you begin the initial installation…
continued from preceding page
this is the case, ensure that the vehicle is not in auto-
matic shut down mode before performing this test.
ROADMASTERmanufacturesstoplightswitchkits
foranumberofvehicles;toseeifoneisavailablefor
anyspecificvehicle,visitwww.roadmasterinc.comand
select ‘Vehicle-Specific Info,’ enter the vehicle make,
model and year, then select ‘Braking Systems' and
scrolldownthepage.
Note: if you must install a Brake-Lite Relay — see
step 9, below — a stop light switch is not required.
8. If the towed vehicle has a magnetic tow light
system — modifications will benecessary,in orderto
permanentlyattachthebrakesignalwire.RefertoStep
Dunder“InitialInstallation”—“Attachthebrakesignal
wire,”step2c.
9. An optional Brake-Lite Relay may be required.
Seepagesevenfor instructions onhow todetermine
iftherelaymustbeinstalled.
Note: a stop light switch (see steps 2 and 7 above)
and a Brake-Lite Relay are mutually exclusive — if you
use one, the other is not necessary.
10. If the towed vehicle will be (or has been) wired
for towing—diodesmustbeattachedtothewires.
  Theelectricalcircuitthatturnsthetowedvehicle's
brakelightsonandoffalsoturnsAddaBRAKEonand
off. If diodes are not attached, electrical feedback
through the brakelight wire will prevent AddaBRAKE
from releasing braking pressure. AddaBRAKE will be
activated with the brake lights, but will not release
brakingpressureuntiltheextendedbrakingprotection
mode overrides the brake signal, after approximately
15seconds.
If the vehicle will be wired for towing, diodes
must be attached in order for AddaBRAKE to re-
lease the towed vehicle's brakes in tandem with the
motorhome. If diodes are not attached, AddaBRAKE
will apply braking pressure for approximately 15
seconds each time the motorhome brakes are ap-
plied, regardless of when the motorhome brakes
are released.
Damage to the towed vehicle's braking system, as
well as other consequential damage, may occur.
  Additionaldiodesarenotrequiredif…
 • …aBrake-LiteRelay(partnumber88400)mustbe
installedinthetowedvehicle;or
 • …anon-intrusivewiringmethodisselected—either
ataillightwiringkit(partnumber155)ormagnetictow
lights(partnumber2100or2120).
  Awiring kit with diodes is available from ROAD-
MASTER — the Universal Wiring Kit, part num-
5
ber 154. Additional diodes may also be purchased
separately. Wiring diagrams are under ‘Support’ at
www.roadmasterinc.com.