A readout of .220.127.116.11 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 signifies that the VTM is ready for testing.
(2) During a compression unbalance test it signifies testing is in progress.
(3) During battery condition test it signifies battery may be in discharged state.
A readout of .18.104.22.168 indicates that the VTM is reading a test value beyond the range of its mea-
surement capability. Either (1) the wrong test number is selected, or (2) there is a fault in the
vehicle, (3) during battery condition test, it signifies base connections, discharged, or bad batter-
A PASS or FAIL readout is the result of a test that checks the condition of a component being
measured. A PASS/FAIL readout means just that - the component either passes the test or fails the
Signal to the technician to release the TEST button during an offset test.
Numbers are used for prompting messages in several tests. They areas follows: in confidence test 66
signals the technican to dial in "99"; in CI acceleration/deceleration power test No. 12, the first
numerical readout signals the technician to shut off fuel.