TM 5-3805-262-20
3-10. INSTRUMENT PANELS TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. INSTRUMENT CLUSTER WARNING LIGHTS DO NOT OPERATE.
Step 1.
Step 2.
Place ignition key switch in on position.
Press bottom 5 ampere circuit breaker button located on right in-
strument panel.
a . I f a t l e a s t o n e w a r n i n g l i g h t i s o n , c i r c u i t b r e a k er
t r i p p e d.
b. If all warning lights are off, go to step 2 below.
Place vehicle lights switch at right instrument panel in
was
several po-
sitions and check operation of loader lights.
a . I f a t l e a s t o n e l o a d e r l i g h t i s o n , p l a c e v e h i c l e l i g h t s s w i t ch
in off position. Check wiring connection between ignition switch
ACC terminal and 5 ampere circuit breaker at right instrument
panel for open circuit. Repair or replace wiring
(page 5-168).
If wiring is okay, remove right instrument panel
replace 5 ampere circuit breaker (page 5-53).
If all warning lights are off, remove instrument
5-34) and replace circuit board (page 5-39).
b . I f a t l e a s t o n e l o a d e r l i g h t i s n o t o n , r e f e r to
systems troubleshooting .
as necessary
(page 5-48) and
c l u s t e r ( p a ge
page 3-81 light
2. OIL PRESSURE WARNING LIGHT DOES NOT OPERATE.
Step 1.
Remove lamp (page
Multimeter should
a . I f m u l t i m e t er
(page 5-45).
b . I f m u l t i m e t er
5-34) and connect multimeter across lamp contacts.
i n d i c a t e c o n t i n u i t y .
does not indicate continuity, install new lamp
indicates continuity, reinstall lamp (page 5-45)
and go to step 2 below.
Step 2. Place ignition key switch in on position.
Connect a jumper wire from terminal of oil pressure switch to engine
ground.
Oil pressure warning light should be on.
3-71
