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Page Title:
ENGINE BRAKE INOPERATIVE (CONT). |
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 TM 9-2320-364-20-1
D5 ENGINE BRAKE INOPERATIVE (CONT).
2.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
DDEC ECM OK.
Visual inspection.
on Page 2-475
POSSIBLE PROBLEMS
REASON FOR QUESTION
Are DDEC ECM terminals and
Damaged DDEC ECM terminals
Damaged terminals or
vehicle harness connector
or connectors.
connectors can affect signal to
MC18 (DDEC ECM and
DDEC ECM. If DDEC ECM
harness side) free from
terminals and connectors are
damage?
OK, either wire 508 is open
outside the DDEC system.
Repair vehicle
harness connector
MC18 or replace
NO
DDEC ECM
(Para 7-101).
Verify repair, go to
Step 3 of this Fault.
YES
Replace DDEC ECM
(Para 7-56).
Verify repair, go to
Step 3 of this Fault.
3.
KNOWN INFO
TEST OPTIONS
DDEC ECM OK.
Does engine brake operate
Verify repair.
DDEC ECM terminals and
correctly in low?
connectors OK.
REASON FOR QUESTION
POSSIBLE PROBLEMS
If engine brake operates in low,
fault has been corrected.
Fault not corrected.
Notify DS
NO
Maintenance.
YES
Fault corrected.
2-474
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