TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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e70. INTERVEHICLE STOPLIGHTS DO NOT ILLUMINATE (CONT) TM 9-2320-365-20-1 2-820 Change 1 WARNING 3. CAUTION Read WARNING and CAUTION on following page. KNOWN INFO TEST OPTIONS Voltage Test or STE/ICE-R Test #89 REASON FOR QUESTION Replace rear intervehicular 12 VDC (7 pin) cable (para 7-78). Towing vehicle stoplights illuminate. Towed vehicle stoplights OK. Dashboard cable assembly OK. POSSIBLE PROBLEMS Faulty rear lights cable assembly. Faulty rear intervehicular 12 VDC (7 pin) cable. Is 12 VDC present at connector P52R pin 6? If 12 VDC is not present, wire 22C is faulty. If 12 VDC is present, rear intervehicular 12 VDC (7 pin) cable is faulty. NO Repair wire 22C from connector P51 socket 13 to connector P52R pin 6 (para 2-40) or replace rear lights cable assembly (para 7-75). YES