TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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KNOWN INFO  7.  TEST OPTIONS  CAUTION  Read CAUTION  on following page.  Continuity Test or  STE/ICE-R Test #91  REASON FOR QUESTION  POSSIBLE PROBLEMS  Faulty rear lights cable  assembly.  Faulty rear intervehicular  24 VDC (12 pin) cable.  Replace intervehicular  24 VDC cable (para 7-79).  e64. TRAILER LEFT STOP/TURN LIGHT DOES NOT ILLUMINATE (CONT)  Is continuity present from  connector P51 socket 15  to connector P53R  pin 8?  TM 9-2320-365-20-1  2-778 Change 1  Towing vehicle left stop/turn  light OK.  Circuit breaker CB43 OK.  Trailer electrical system OK.  Dashboard cable assembly OK.  Relay K30 OK.  If continuity is not present,  wire 461T is faulty. If  continuity is present,  intervehicular 24 VDC (12 pin)  cable is faulty.  Repair wire 461T from connector P51  socket 15 to connector P53R pin 8  (para 2-40) or replace rear lights  cable assembly (para 7-75).  YES  NO