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TM 5-5420-226-20-1
SIMPLIFIED
TEST
EQUIPMENT/lNTERNAL
COMBUSTION
---
—
ENGINE
(STE/lCE)
SET
(Continued)
OPERATORS
MESSAGES
TABLE
VTM Readout
Readout Explanation
m
A readout of [’]
ap~ars
for 1 or 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
A readout of ~
indicates the following:
(1) After ~wer
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 battety condition test it signifies battery may be in discharged state.
m
A readout of w]
indicatea 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 mea-
sured, or (2) there is fault in the vehicle, (3) during battery
condition
test, it signifies bad
connections,
discharged, or bad batteries.
m
A PASS or FAIL readout is the result of a test that checks the condition of a
m
component being measured. A
I PASS/FAIL
{ readout means just that - the component either
passes the test or fails the test.
m’
Signal to technician
to enter vehicle type identification
number (VID) on the TEST SELECT
switches. Vehicle ID numbers are found under TEST DATA on the flip cards, on the vehicle test
cards.
m
Signal to technician
to crank engine in compression balance or first peak tests. During battery
condition test, indicates weak battery in series pair of batteries being tested.
m
Signal to technician to apply full throttle in a CI power test.
m
Signal to technician to stop cranking in compression balance test or to release the accelerator in the
CI power test.
m
Signal to the technician to release the TEST button during an offset test.
D
Numbers are used for prompting messages in several tests. They areas follows: in confidence test 66
signals the technician to dial in “99”; in CI acceleration/decelemtion
power test No. 12, the first
numerical’ readout signals the technician to shut off fuel.
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TA106742
4-53
