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Page Title:
CODE 11 VERNIER CONTROL SIGNAL VOLTAGE LOW. |
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 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
A4 CODE 11 VERNIER CONTROL SIGNAL VOLTAGE LOW.
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)
DDEC Repair Kit (Item 15, Appendix G)
Equipment Condition
Multimeter (Item 44, Appendix G)
Engine OFF, (TM 9-2320-364-10)
Reader, Diagnostic (Item 53, Appendix G)
Parking brake applied, (TM 9-2320-364-10)
Remover, Connector (Item 55, Appendix G)
Wheels chocked, (TM 9-2320-364-10)
Top engine access cover opened,
(Item 95, Appendix G)
(TM 9-2320-364-10)
Jumperwire
Materials/Parts
Compound, Corrosion Preventive
(Item 34, Appendix C)
Lockwasher (Item 168, Appendix F)
START
1.
KNOWN INFO
TEST OPTIONS
CHECK ENGINE light (CEL)
DDR test.
Is Code 11 the only code
comes ON and stays ON.
displayed on DDR?
REASON FOR QUESTION
POSSIBLE PROBLEMS
Isolate Fault.
More than Code 11 displayed
on DDR.
Vehicle harness connector
MC18 faulty.
ECM faulty.
Wires 916 and/or 952 shorted.
Wire 916 faulty.
Wires 1525 and/or 952 shorted.
Wires 1525 and/or 916 faulty.
Vernier control terminals
Go to Fault A5A
NO
damaged.
Vernier control faulty.
Wires 240 and/or 241 shorted.
Wire 150 faulty.
Wire 240 faulty.
YES
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