TM 10-3930-669-20 4.  TRANSMISSION TEMPERATURE GAUGE GIVES NO OR INCORRECT READING (CONT). KNOWN INFO All other gauges operate. Transmission temperature sensor OK. Gauge wire 5 OK. Gauge ground wire OK. POSSIBLE PROBLEMS Wire 15 faulty. Transmission temperature gauge faulty. KNOWN INFO All other gauges operate. Transmission temperature sensor OK. Gauge wire 5 OK. Gauge ground wire OK. Wire 15 OK. Transmission temperature gauge OK. POSSIBLE PROBLEMS TEST OPTIONS Continuity test. STE/ICE-R #91. REASON FOR QUESTION If continuity is not present , wire 15 is faulty. TEST OPTIONS Verify repair. REASON FOR QUESTION If transmission temperature gauge   gives   correct   reading, fault has been corrected. ¬ ¬ 2-148