TROUBLESHOOTING THE HMMWV - OD1616 - LESSON 2/TASK 1
STE/ICE Description and Operation
General. The following paragraphs describe the operation of the
STE/ICE system and contains detailed operating procedures.
used to test the serviceability of HMMWV vehicles and to perform
primary fault detection and isolation.
Figure 8 (on the previous
page) shows all the components that comprise the STE/ICE system.
Description and Operation. The STE/ICE is a testing system that
STE/ICE measures standard voltage, current, resistance, pressure,
temperature, and speed.
Special tests, such as compression balance
tests and starter system evaluations, are performed by the STE/ICE.
Standard equipment functions including a vacuum pressure gage,
compression gage, low-current tester, and multimeter are features of
the STE/ICE set. The STE/ICE is portable and operates on either 12
or 24 Volt vehicle batteries or an equivalent power source.
STE/ICE system consists of a vehicle test meter (VTM), a transducer
kit (TK), four electrical cables, a transit case, and technical
(1) Vehicle Test Meter (VTM).
The VTM provides a method for the mechanic to test vehicle electrical
and mechanical components. Readings are either pass/fail indications
Volts, Ohms, Amps, etc.). The diagnostic connector assembly (DCA) is
permanently mounted in the vehicle and provides accessibility to the
most frequently needed test points. The use of the VTM through the
DCA is referred to as the DCA mode.
vehicle directly with a transducer from the TK. The use of the VTM
through the TK is referred to as the TK mode.
The DCA and the TK can be used at the same time.
This may be
necessary when the diagnostic connector assembly has a missing
If a transducer is missing, a no sensor indication
(E002) is displayed when a measurement is made. If this happens, the
TK mode can be used to make the measurement.