(2) Cable assemblies continued
When cables are connected, the large key (1) located by the white stripe (2) on the cable connector mates with
large keyway (3) of connector on VTM or transducer.
(a) Diagnostic Connector assembly Cable W1 iS used to power the VTM and provide access to test
points and sensors connected to vehicle/equipment mounted DCA.There is no DCA capability in the M113A2
(b) Test probe cable w2.The test probe cable for both general and special measurements. It is used for
measuring voltages, frequency, resistance and continuity, and also for the first peak series and compression
unbalance tests. W2 is divided into two color coded leads, red for E1 and black for E2. Test clips El and E2 of
W2 attach to points on the vehicle/equipment being tested.
(c) Ignition adapter cable W3. The ignition adapter cable W3 is used in measuring dwell angle, points
voltage, engine rpm and power tests. W3 is divided into two color coded leads, red for E 1 and black for E2.
Cable W3 is not used in the M113A2 FOV.
(d) Transducer cables W4. The transducer cables W4 are used as extensions to connect the VTM to a
pressure transducer, pulse tachometer, current probe or ignition adapter cable. If necessary, two transducer
cables can be joined using connector adapter, TK item 29.