TM 5-3805-292-23
0006
ELECTRICAL TROUBLESHOOTING - EC006 ENGINE COOLANT TEMPERATURE IS TOO HIGH
0006
Refer to Malfunction Engine
Problem still
Stop.
NO
Overheats in this work package.
exists?
YES
Disconnect instrument panel (IP)
Disconnect coolant temperature
sender (WP 0051).
Check for continuity between
Perform Open Harness Test for circuit 257
sender connector, circuit 257A (Y)
NO
present?
harness side, IP connector C23-
25, and circuit 257D (Y) harness
Console and Frame 19.
Miscellaneous Circuits).
YES
WARNING
DO NOT service cooling system unless engine has cooled. This is a pressurized cooling system
o
and escaping steam or hot coolant will cause serious burns.
DO NOT remove cooling system radiator cap when engine is hot. Allow engine to cool down.
o
Loosen cap to first stop and let any pressure out of cooling system, then remove cap.
Wear effective eye, hand, and skin protection when handling coolants.
o
Failure to follow these warnings may result in injury to personnel.
o
Replace coolant temperature sender
