TM 10-3930-675-20-1 0046 00-4 TOPHANDLER SPREADER TROUBLESHOOTING - CONTINUED 0046 00 Table 3. Error Code 234 - Tophandler Spreader Closing, Open Circuit Failure Troubleshooting Procedures - Continued. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Error Code 234 - Tophandler Spreader Closing, Open Circuit Failure - Continued 3.  Disconnect  connector  X188 from tophandler junction box at end of boom. Place ignition switch   to   ON  position   and perform voltage check between connector X188 pin L and pin M. a.  If 20-25V is present, check continuity    between    con- nector   X188   pin   L   and connector    6019    pin    1; between   connector   X188 pin M and connector 6019 pin 2; and between connector X188 pin M and ECU (791) connector 2 pin 12. a. If  continuity  is  not  present, repair  or  replace  connectors (WP 0111 00). b. If    wiring    harness    requires replacement, notify DS Maintenance. b. If  voltage  is  not  present, enter    “DIAG    ATTACH- MENT  8  (16)”  menu  and check   current   of   20’-40’ OUTPUT.  Current  should be   present   with   joystick activated to close tophandler spreader. a. If    current    is    not    present, replace ECU (791) (WP 0076 00). b. If  current  is  present,  notify SRA. Table 4. Error Code 235 - Tophandler Spreader Closing, Short Circuit Failure Troubleshooting Procedures. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Error Code 235 - Tophandler Spreader Closing, Short Circuit Failure 1.  Check wires and cables from tophandler   control  valve  to boom for obvious damage. Repair    or    replace    damaged connectors (WP 0111 00). 2.  Disconnect electrical connector 6019 from tophandler   spreader   closing solenoid. Place ignition switch to ON position. Error code  234  will  be  displayed. Perform voltage check at pins 1 and 2. If 20-25V is present at connector 6019,  replace  spreader  closing solenoid (WP 0169 00). DIAG TOP LIFT   8(16)         OUTPUT  INPUT 20’->40’   0mA    0mA    40’->20’   0mA    0mA