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Group 28 Design and Function
Breakout Boxes and Harnesses
The harness adapters are used to gain access to the
EECU, the VECU, the throttle pedal and certain other
sensors on the engine, while the circuit is intact. This al-
lows the technician and vehicle to take measurements
on functional circuits.
Example:
The 36-pin breakout box allows the technician to
measure resistance and voltage on the EECU’s EA con-
nector (which covers the engine mounted components)
and the EB connector (which covers the remaining com-
ponents involved).
CAUTION
Check that the proper cable and connector location is
observed and used while connectin to the ECU.
Ohterwise, damage to the ECU or tool will occur.
W2002712
W2002710
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