TM 9-2320-364-20-3 2-2520 1.  NO CRANE FUNCTIONS WORK USING REMOTE CONTROL (CONT). All crane functions operate   using controls mounted on   crane. Violet wire from terminal 8 to   remote control connector outlet   terminal H OK. Green wire from remote control   connector, terminal B to crane   junction box ground faulty. Remote control unit cable faulty. Remote control unit wire 4   faulty. ON/OFF EMERGENCY STOP   switch faulty. Remote control unit wire 8 from   ON/OFF switch to four terminal   connector faulty. Remote control unit wire 2   faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Continuity test. STE/ICE-R #91. If terminal H wire is loose, faulty or shorted, 22 to 28 vdc will not be input to remote control unit. If terminal B wire is loose, faulty or shorted, remote control unit will not be grounded. YES NO Replace cable. Verify repair, go to Step 8 of this Fault. 3. 2. Repair green wire (see schematic Fig 2-58) or notify DS Maintenance. Verify repair, go to Step 8 of this Fault. YES NO All crane functions operate   using controls mounted on   crane. Violet wire from terminal 8 to   remote control connector outlet   terminal H OK. Green wire from remote control   connector, terminal B to crane   junction box ground faulty. Remote control unit cable faulty. Remote control unit wire 4   faulty. ON/OFF EMERGENCY STOP   switch faulty. Remote control unit wire 8 from   ON/OFF switch to four terminal   connector faulty. Remote control unit wire 2   faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Continuity test. STE/ICE-R #91. If green ground wire from truck hookup to crane junction box ground terminal faulty, remote control unit will not be grounded. WARNING WARNING Is continuity measured between remote control connector (truck RH or LH) terminal B and ground? Is continuity measured from terminals H and B on one connector to terminals H and B on other connector? Read   WARNING on Page 2-2521 Read   WARNING on Page 2-2521