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Page Title:
Test Step 8. Check the Battery Voltage to Connector J648 for the Lamp |
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 159
TM 9-2320-312-24-2
Troubleshooting Section
B. Disconnect the connector J648/P648 for the air
inlet heater's lamp.
C. Connect a voltage test lamp to the terminal
J648:A. Refer to Illustration 33.
D. Connect a jumper wire to the ground stud.
Connect the other lead of the test lamp to the
jumper wire.
E. Turn the ignition key switch to the ON position.
Expected Result:
The voltage test lamp came on and the voltage
test lamp stays on while the voltage test lamp is
connected between J648:A and the ground stud.
Results:
Yes Proceed to Test Step 10.
g00727399
Illustration 34
No
Connections for the Test Lamp
Repair: Repair the wiring. Verify that the problem
B. Connect a voltage test lamp from the terminal
has been resolved.
for the relay contact that connects to the circuit
protection for the air inlet heater (wire K995-OR).
STOP.
C. Connect the other end of the voltage test lamp
Test Step 9. Check the Voltage at
to the engine ground stud.
Connector J648/P648 for the Lamp
D. Turn the ignition key switch to the ON position.
A. Turn the ignition key switch to the OFF position.
Expected Result:
B. Disconnect the connector J648/P648 for the air
inlet heater's lamp.
The test lamp comes on when the ignition key
switch is turned to the ON position.
C. Connect a voltage test lamp from the connector
J648:Afor the air inlet heater to the engine
Results:
ground stud.
Yes
D. Turn the ignition key switch to the ON position.
Repair: Repair the wiring between the lamp for
Expected Result:
the air inlet heater and the connector J648:B.
Verify that the problem has been resolved.
The test lamp comes on and the test lamp stays on.
STOP.
Results:
No
Yes
Repair: Inspect the circuit protection for the air
Repair: Repair the wiring from the connector
inlet heater and the air inlet heater wiring. Repair
J648:B for the lamp. Verify that the problem has
the wiring. Verify that the problem has been
been resolved.
resolved.
STOP.
STOP.
No
Test Step 8. Check the Battery Voltage to
Connector J648 for the Lamp
A. Turn the ignition key switch to the OFF position.
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