Put the transmission in P (for A/T) or N (for M/T) and make sure the parking • 
brake is engaged.
Keep a re extinguisher suitable for gasoline/chemical/ electrical res nearby.• 
Don’t connect or disconnect any test equipment while the ignition is on or the • 
engine is running.
Keep  the  CR-HD  dry,  clean,  free  from  oil/water  or  grease.  Use  a  mild • 
detergent  on  a  clean  cloth  to  clean  the  outside  of  the  CR-HD,  when 
necessary.