Clarion SR5000 - Manual (Page 21)

22
Programming Jumpers
Light Flash Jumper
This jumper is used to determine the light flash output. In the (+) position, the on-board relay is
enabled and the unit will output (+)12V on the WHITE wire, H1/2. In the (-) position, the on-
board relay is disabled. The WHITE wire, H1/2, will supply a 200 mA (-) output suitable for
driving factory parking light relays.
NOTE: For parking light circuits that draw 10 amps or more, the jumper must be switched to a (-)
light flash output. A standard automotive SPDT relay must be used on the H1/2 light flash output
harness wire.
Tach Threshold On/Off
In most cases, this jumper can be left in the OFF position. Some new vehicles use less than 12 volts
in their ignition systems. The unit may have trouble learning the tach signal in these vehicles.
Changing the jumper to the ON setting changes the trigger threshold of the digital tach circuit so it
will work properly with these vehicles. The vehicles affected include many newer
Dodge/Chrysler/Plymouth vehicles, such as the Neon, Cirrus, Stratus, Breeze and LH-based vehicles.
IMPORTANT! DO NOT connect the H1/2 light flash wire to a negative vehicle light
flash wire before changing the programming jumper to the negative polarity position or
damage to vehicle light circuit may occur.