TM 5-3805-262-20
3-10. INSTRUMENT PANELS TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10. AIR PRESSURE GAGE DOES NOT OPERATE (Cont).
S t e p 1 . ( C o n t ).
a. If air pressure gage pointer moves to bottom, refer to page 3-93
sending units troubleshooting.
b. If air pressure gage pointer
2 below.
Step 2.
Check wiring connection between
sender.
a. If wiring connection is bad,
sary (page 5-168 or 5-174).
does not move to bottom, go to step
air pressure gage and air pressure
repair or replace wiring as neces-
b. If wiring is okay, remove instrument cluster (page 5-34) and
check air pressure gage (page 5-41). If gage is bad, replace
(page 5-39). If gage is okay, replace circuit board (page 5-39).
11. WATER TEMPERATURE GAGE DOES NOT OPERATE.
Step 1.
Disconnect blue-yellow wire from terminal of water temperature send-
ing unit (page 5-120).
Tell an assistant to hold
ground.
Place ignition key switch
gage. Gage pointer should
blue-yellow wire terminal against loader
in on position and watch water temperature
move to top.
a. If water temperature gage pointer moves to top, refer to page
3 - 93 sending units troubleshooting.
b. If water temperature gage pointer does not move to top, go to
step 2 below.
Step 2.
Check wiring connection between water temperature gage and water
temperature sending unit.
a. If wiring connection is bad, repair or replace wiring as neces-
sary (page 5-168 or 5-174).
b. If wiring is okay, remove instrument cluster (page 5-34) and
check water temperature gage (page 5-41). If gage is bad,
replace (page 5-39). If gage is okay, replace circuit board
(page 5-39).
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