 |
|||
|
|
|||
|
Page Title:
CODE 23 FUEL TEMPERATURE SENSOR (FTS) SIGNAL VOLTAGE HIGH (CONT). |
|
||
| ||||||||||
|
|
 TM 9-2320-364-20-1
A4 CODE 23 FUEL TEMPERATURE SENSOR (FTS) SIGNAL VOLTAGE HIGH (CONT).
4.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Resistance test.
on Page 2-249
comes ON and stays ON.
STE/ICE-R #91.
Wires 472, 416 and 452
Are there
not shorted.
5 ohms or
REASON FOR QUESTION
FTS connector OK.
less measured between wires
FTS OK.
472 and 452 at engine
Resistance greater than 5 ohms
at engine harness connector
harness connector, terminals
POSSIBLE PROBLEMS
indicates signal line wire 472 or
R3 and Y2?
return line wire 452 are open.
Wires 472 and/or 452 open.
Engine harness connector
faulty.
DDEC ECM faulty.
Repair wires 472
and/or 452 (see
schematic Fig 2-2)
NO
or notify
DS Maintenance.
Verify repair, go to
Step 6 of this Fault.
YES
5.
KNOWN INFO
TEST OPTIONS
CAUTION
Read CAUTION
CHECK ENGINE light (CEL)
Visual inspection.
on Page 2-249
comes ON and stays ON.
Wires 472, 416 and 452
REASON FOR QUESTION
not shorted.
FTS connector OK.
Are DDEC ECM terminals and
FTS OK.
Damage to terminals and
connectors (DDEC ECM and
Wires 472 and 452 not open.
connectors can affect signal to
vehicle harness side) free
DDEC ECM.
from damage?
POSSIBLE PROBLEMS
Engine harness connector
faulty.
DDEC ECM faulty.
Repair engine
harness connector
(Para 7-101) or
NO
replace DDEC ECM
(Para 7-56).
Verify repair, go to
Step 6 of this Fault.
YES
Replace DDEC ECM
(Para 7-56).
Verify repair, go to
Step 6 of this Fault.
2-248
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals