TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
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VTM Readout ---- Interpretation TM 9-2320-280-20-1 (d) Error Readout. E0001 is a typical error readout. There are 15 different readouts. All error readouts start with E. An error readout is a warning that you forgot to connect the transducer, selected a wrong test number, failed to start the engine, etc. All of the error messages mean you must correct the problem before continuing testing. Error readouts are listed in table 2-3. If the error message does not go away after corrective action, refer to TM 9-4910-571-12&P. (e) Confidence Error Readouts. C004 is a typical error readout resulting from the detection of a faulty VTM during confidence test. For detailed information concerning confidence error readouts refer to TM 9-4910-571-12&P. Table 2-1. Status Readouts. .8.8.8.8 A readout of .8.8.8.8 appears for 1 to 2 seconds each time the power is applied to the VTM. It means that there is power to the VTM, and that all elements of the readout display are operative. A readout of ---- indicates the following (1) After power turn on it signifes that the VTM is ready for testing. (2) During a compression unbalance test it signifies testing is in progress. .9.9.9.9 A readout of ..9.9.9.9 indicates that the VTM is reading a test value beyond the range of its measurement, capability. Either (1) the wrong test number is selected for the parameter being measured, or (2) there is a fault in the vehicle. PASS A PASS or FAIL readout is the result of a test that checks the condition of a component FAIL being measured. A PASS/FAIL readout means just that — the component either passes the test or fails the test. 2-757