TM-9-2320-361-20

TM 9-2320-361-20

2-20. STE/lCE DESCRIPTION AND OPERATION (Contd)

(3) Readouts.

The following paragraphs describe different types of readouts that can occur during

testing.

(a) Status Readout.

A status readout keeps technician informed of what is happening. For

example, .8.8.8.8 is displayed each time the power switch is pushed on. It means that power is applied, and

that all elements of the display are operative. It changes to four dashes 1.5 seconds later, indicating that the

VTM is ready to be used for testing. The status readout displays are described in table 2-5.

(b) Prompting Message.

A prompting message is a technician action message. It is a signal

for you to do something such as crank engine. For example, UEH tells you to enter the vehicle identification

number into VTM. After technical action is performed, test will automatically continue. Prompting

messages are listed in table 2-6.

A numerical readout is the measured value in units of measurement

being made. For example, if you are measuring 0-45 volts DC, 12.7 is volts DC. If you are measuring 0-25

psig pressure, 12.7 is psig. Units for each test are listed on the flip card.

(d) Error Readout.

E001 is a typical error readout. There are 17 different error 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 engine, etc. All error messages mean you must correct problem

before continuing testing. Error messages are described in table 2-7. If an 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 detection of a

fault VTM during confidence test.

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