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Page Title:
SPEEDOMETER DOES NOT OPERATE OR IS INACCURATE (CONT) |
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 TM 9-2320-366-20-1
e12. SPEEDOMETER DOES NOT OPERATE OR IS INACCURATE (CONT)
CAUTION
Read CAUTION
KNOWN INFO
TEST OPTIONS
on following page.
14.
Continuity Test or
Water temperature gage
STE/ICE-R Test #91
operates correctly.
Is continuity absent from
REASON FOR QUESTION
Main code 13, 22, or 25 not
connector P110 socket U to
If continuity is present, wire
active in pushbutton shift
ground?
1793 in CTIS cable assembly
selector.
is faulty.
VOLTS gage operates
correctly.
Vehicle is equipped with
WTEC III transmission
NO
controls.
WTEC III dashboard cable
assembly OK.
POSSIBLE PROBLEMS
Faulty CTIS cable assembly.
Repair wire 1793 from connector
Faulty CTIS ECU.
P110 socket U to connector P111
Faulty speedometer.
YES
socket B (para 2-45) or replace
CTIS cable assembly (para 7-60).
KNOWN INFO
TEST OPTIONS
15.
Continuity Test or
Water temperature gage
STE/ICE-R Test #91
operates correctly.
Is continuity absent from
REASON FOR QUESTION
Main code 13, 22, or 25 not
CTIS ECU connector pin U
active in pushbutton shift
to ground?
If continuity is present from
selector.
CTIS ECU connector pin U to
VOLTS gage operates
ground, CTIS ECU is faulty.
correctly.
Vehicle is equipped with
WTEC III transmission
controls.
NO
WTEC III dashboard cable
assembly OK.
CTIS cable assembly OK.
POSSIBLE PROBLEMS
Replace CTIS ECU
YES
(para 12-6).
Faulty CTIS ECU.
Faulty speedometer.
2-354.4
Change 1
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