TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TM 9-2320-366-20-1 e24A. HIGH ENGINE TEMPERATURE INDICATOR ILLUMINATES (CONT) KNOWN INFO Replace coolant temperature light switch (para 7-22). TEST OPTIONS REASON FOR QUESTION NO YES Continuity Test or STE/ICE-R Test #91 CAUTION Read CAUTION on following page. 2. Go to step 3 of this fault. 2-418.4 Change 2 Engine temperature is below 216°F (102°C) when high engine temperature indicator illuminates. High engine temperature indicator illuminates when master power switch is positioned to on. POSSIBLE PROBLEMS Faulty coolant temperature light switch. Faulty LAMP TEST switch (if equipped). Faulty engine control cable assembly. Faulty WTEC II dashboard cable assembly. Faulty WTEC III dashboard cable assembly. Is continuity present from coolant temperature light switch connector socket 2 to known good ground? If continuity is present, coolant temperature light switch is faulty.