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TM 9-2320-360-20-1
CONTINUITY TEST
(1)
Turn ignition off and trip both circuit breakers
to ECM.
(2)
Disconnect vehicle harness and 6-way
power harness connectors at ECM.
(3)
Read resistance between sockets A3 and B3
on vehicle harness connector.
(4)
Also read resistance between socket A3 on
vehicle harness connector and sockets A, B,
E, and F on 6-way power harness connector.
VOLTAGE TEST
(1)
Connect Throttle Position Sensor and turn
ENGINE switch ON.
(2)
Read voltage on Vernier Control harness
connector, socket C (red lead) to a good
ground (black lead).
(3)
Repeat step 2 only place red lead in
socket A of Vernier Control connector.
(1)
Turn ENGINE switch OFF.
(2)
Reconnect all harness connectors.
(3)
Turn ENGINE switch ON and observe
CHECK ENGINE indicator.
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