TM9-2330-374-14&P
T a b l e 4-2.
o r g a n i z a t i o n a l Troubleshooting Table - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4.
Check lamp socket for dirt and corrosion.
Remove lamp and clean sockets if dirty or corroded.
If lamp socket is clean, go to step 5.
S t e p 5.
Check plug and/or receptacle for dirty or corroded contacts.
Clean contacts if dirty or corroded.
If contacts are not dirty or corroded, go to step 6.
Step 6.
Check for loose or broken ground wire at light assembly.
Repair or tighten ground wire, if defective.
3.
ALL 12 OR 24 VOLT LAMPS DO NOT LIGHT AND TAILLIGHTS OPERATE NORMALLY.
Step 1.
Check that body cables are properly plugged into chassis receptacle.
Pull plug out and reinsert it fully.
If plug is secure, go to step 2.
Step 2.
Check for broken or loose ground wire at chassis receptacle.
If ground wire is broken or loose, repair or tighten ground wire.
If ground wire not broken or loose, go to step 3.
Step 3.
Check wiring for bare spots in insulation.
Repair wiring if defective (para. 4-25).
4.
ALL 24 VOLT DOME LAMPS DO NOT LIGHT BUT CLEARANCE LAMPS OPERATE NORMALLY.
Check for improperly positioned or defective dome light switch.
Properly position or replace dome light switch, if defective
5.
110 VOLT DOME LAMPS DO NOT LIGHT AND 110 VOLTS AC NOT PRESENT AT WALL
RECEPTACLE.
Step 1.
Check for defective external power source.
Replace or repair external power source.
If external power source not defective, go to step 2.
Step 2.
Check that plug is properly seated in external 110 volt receptacle.
Pull plug out and reinsert it fully.
If plug is properly seated, go to step 3.
Step 3.
C h e c k fuse box for blown 60 amp fuse (one or both).
Replace fuse(s), if defective (para. 4-13).
