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Page Title:
CODE 42 SYNCHRONOUS REFERENCE SENSOR (SRS) (CONT). |
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 TM 9-2320-364-20-1
A4 CODE 42 SYNCHRONOUS REFERENCE SENSOR (SRS) (CONT).
5.
KNOWN INFO
TEST OPTIONS
CAUTION
Read CAUTION
CHECK ENGINE light (CEL)
Resistance test.
Are there
on Page 2-329
comes ON and stays ON.
STE/ICE-R #91.
5 ohms or
DDEC ECM and engine
less measured
harness connector OK.
REASON FOR QUESTION
between wires 112 and 111 at
DDEC ECM OK.
engine harness connector,
Wires 112 and 111 are not
Resistance more than 5 ohms
terminals S1 and S2 with
shorted.
at engine harness connector
jumperwire installed between
indicates signal line wire 111 or
terminals A and B at SRS
return line wire 112 are open.
POSSIBLE PROBLEMS
harness connector?
Wires 112 and/or 111 are open.
SRS and/or engine harness
Repair wires 112
connector faulty.
and/or 111 (see
SRS faulty.
schematic Fig 2-2) or
notify DS
NO
Maintenance.
Verify repair, go to
Step 7 of this Fault.
YES
6.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Visual inspection.
on Page 2-329
comes ON and stays ON.
DDEC ECM and engine
REASON FOR QUESTION
harness connector OK.
Are SRS terminals and
DDEC ECM OK.
Damage to terminals or
connectors (SRS and engine
Wires 112 and 111 are not
connectors can affect signal to
shorted.
harness side) free from
SRS.
Wires 112 and 111 are not open.
damage?
POSSIBLE PROBLEMS
SRS and/or engine harness
connector faulty.
Repair SRS and/or
SRS faulty.
engine harness
connectors
NO
(Para 7-101).
Verify repair, go to
Step 7 of this Fault.
YES
SRS faulty.
Notify DS
Maintenance.
2-328
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