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TM 9-2320-366-20-1
e21. TACHOMETER DOES NOT ILLUMINATE (CONT)
WARNING
CAUTION
Read WARNING and
CAUTION on
KNOWN INFO
TEST OPTIONS
following page.
2.
Hazard lights switch
Voltage Test or
illuminates.
STE/ICE-R Test #89
Is 12 VDC present at
POSSIBLE PROBLEMS
REASON FOR QUESTION
connector P901 socket 2?
If 12 VDC is present,
Faulty auxiliary panel cable
tachometer is faulty.
assembly.
Faulty dashboard cable
assembly.
Faulty tachometer.
NO
YES
Go to step 3 of this fault.
Replace tachometer
(para 7-21).
Change 1
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