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 e14. TACHOMETER DOES NOT OPERATE OR IS INACCURATE (CONT) 4. Is 24 VDC present on connector P901 pin 3? KNOWN INFO TEST OPTIONS WARNING CAUTION Read WARNING and CAUTION on following page. Voltage Test or STE/ICE-R Test #89 REASON FOR QUESTION YES NO If 24 VDC is not present, wire 1546 is faulty. Tachometer illuminates. VOLTS gage OK. Engine speed sensor OK. POSSIBLE PROBLEMS Faulty dashboard cable assembly. Faulty auxiliary panel cable assembly. Faulty engine control cable assembly. Faulty tachometer. 2-362 Change 1 Repair wire 1546 from connector P913 pin 9 to connector P901 pin 3 (para 2-45) or replace auxiliary panel cable assembly (para 7-58).