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Page Title:
CODE 23 FUEL TEMPERATURE SENSOR (FTS) SIGNAL VOLTAGE HIGH. |
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 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
A4 CODE 23 FUEL TEMPERATURE SENSOR (FTS) SIGNAL VOLTAGE HIGH.
INITIAL SETUP
References
Tools and Special Tools
TM 9-2320-364-10
Tool Kit, General Mechanic's: Automotive
TM 9-4910-571-12&P
(Item 74, Appendix G)
STE/ICE-R (optional) (Item 3, Appendix G)
Equipment Condition
DDEC Repair Kit (Item 15, Appendix G)
Engine OFF, (TM 9-2320-364-10)
Multimeter (Item 44, Appendix G)
Parking brake applied, (TM 9-2320-364-10)
Reader, Diagnostic (Item 53, Appendix G)
Wheels chocked, (TM 9-2320-364-10)
Jumperwire
Top engine access cover opened,
(TM 9-2320-364-10)
START
1.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
DDR test.
on Page 2-245
comes ON and stays ON.
Is Code
REASON FOR QUESTION
24 or any
POSSIBLE PROBLEMS
other codes displayed on
Isolate Fault.
Wires 472, 416 and/or 452
DDR with jumperwire installed
shorted.
between wires 452 and 472 at
FTS connector faulty.
FTS harness connector,
FTS faulty.
terminals A and B?
Wires 472 and/or 452 open.
Engine harness connector
faulty.
DDEC ECM faulty.
For any code except
Code 24, go to Step 4
NO
of this Fault.
YES
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