TM 10-3930-669-20 2-10.  INTRODUCTION TO LOGIC TREE TROUBLESHOOTING (CONT). (4) Observe warnings, cautions and notes.  The formatting symbols used in this manual for warnings, cautions, and notes are as follows: WARNING This   is   the   symbol   for   a   warning   statement.      If   you   see   the   word WARNING  above  a  question  on  the  left-hand  page,  look  on  the  right hand page for the test of the message. WARNINGS describe a situation which could cause severe injury or death to personnel. CAUTION This   is   the   symbol   for   a   caution   statement.      If   you   see   the   word CAUTION  above  a  question  on  the  left-hand  page,  look  on  the  right- hand page for the text of the message. CAUTIONS describe a situation which could cause damage to equipment. NOTE This is the symbol for a note.  Notes are located directly above the test to which they refer.  Notes provide additional information for performing a test. 2-11.  GENERAL TROUBLESHOOTING INSTRUCTIONS. NOTE The  troubleshooting  makes  use  of  the  Simplified  Test  Equipment  for Internal Combustion Engines-Reprogrammable (STE/ICE-R) and conventional methods for testing and fault isolation. a.    Simplified  Test  Equipment  for  Internal  Combustion  Engines  -  Reprogrammable  (STE/CE-R).  STE/ICE-R tests   are   incorporated   into   the   standard   troubleshooting   test   to   aid   in   fault   isolation.      The   STE/ICE-R   acts   as   a conventional  digital  multimeter  to  measure  voltage,  current,  and  resistance.    It  can  also  measure  pressure,  speed, compression   unbalance,   engine   power,   and   some   specialized   battery   and   starter   evaluations.      The   STE/ICE-R   is powered  by  the  forklift  battery.   The  complete  system  includes  a  test  meter  (VTM),  cables,  transit  case,  and  technical publications.  The STE/ICE-R can make TK mode measurements while connected to the batteries.  STE/ICE-R tests are referenced. b.  General Electrical Troubleshooting Procedures. WARNING Remove rings, bracelets, wristwatches, neck chains, etc., before working on  any  vehicle.    Jewelry  can  catch  on  equipment  and  cause  injury,  or may   short   across   an   electrical   circuit   and   cause   severe   burns   or electrical shock. 2-10