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Page Title:
CODE 41 TIMING REFERENCE SENSOR (TRS) (CONT). |
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 TM 9-2320-364-20-1
A4 CODE 41 TIMING REFERENCE SENSOR (TRS) (CONT).
2.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Resistance test.
on Page 2-315
comes ON and stays ON.
STE/ICE-R #91.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Are 200 ohms or less
measured between wires 109
Resistance less than 100 ohms
DDEC ECM connector faulty.
and 110 at engine harness
or greater than 200 ohms at
DDEC ECM faulty.
connector, terminals T1
DDEC ECM engine harness
Wires 109 and/or 110 are
connector indicates TRS sensor
and T2?
shorted.
or wiring faulty.
Wires 109 and/or 110 are open.
TRS connector faulty.
TRS faulty.
More than 200 ohms,
NO
go to Step 5 of this
Fault.
YES
Less than 200 ohms,
go to Step 4 of this
Fault.
3.
KNOWN INFO
TEST OPTIONS
CAUTION
Read CAUTION
CHECK ENGINE light (CEL)
Visual inspection.
on Page 2-315
comes ON and stays ON.
REASON FOR QUESTION
POSSIBLE PROBLEMS
Are DDEC ECM terminals and
Damage to terminals or
connectors (DDEC ECM and
DDEC ECM connector faulty.
connectors can affect signal to
engine harness side) free
DDEC ECM faulty.
DDEC ECM.
Wires 109 and/or 110 are
from damage?
shorted.
Wires 109 and/or 110 are open.
TRS connector faulty.
TRS faulty.
Repair engine
harness connector
(Para 7-101) or
NO
replace DDEC ECM
(Para 7-56).
Verify repair, go to
Step 7 of this Fault.
YES
Replace DDEC ECM
(Para 7-56).
Verify repair, go to
Step 7 of this Fault.
2-314
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