Directed Electronics Rattler 259D User Manual page 25

enough to actually start the engine, it is possible to change the
programming to extend the crank time. Refer to the
Programming Options section of this guide.
On some vehicles the electrical system has too low of a voltage
variance for the remote start module to see. In this case the
engine will not be protected from over cranking, over revolution,
or under revolution of the engine.
If this is the case, it will be necessary to locate a tachometer wire
in the vehicle using the multi-meter. Identify the suspect wire
according to the web information. Then start the vehicle with
the key and place the black lead of the multi-meter on the nega-
tive battery post and secure it. Put the multi-meter in the AC
position and probe the suspect wire with the red lead of the
multi-meter. With the engine at idle the multi-meter should
read between .05 volts to 1.5 volts.
Have a second person press the gas pedal to increase the RPMs
and watch the meter display. When the RPMs increase the
22
© 2002 directed electronics, inc.