TM 9-2330-287-14&P
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ONE OR MORE LAMPS FAIL TO LIGHT - CONTINUED.
Disconnect intervehicular cable from towing vehicle. Have assistant
Step 7.
operate affected lights while checking voltage at affected pins in
towing vehicle receptacle.
If voltage is present at affected pins in towing vehicle re-
If voltage is not present at affected pins in towing vehicle re-
ceptacle, refer to applicable maintenance TM for towing vehicle.
2. LAMPS DIM OR FLICKERING.
NOTE
If only one light assembly is dim or flickering, proceed to step 5.
Check continuity between the terminal of ground wire no. 90 at rear sec-
Step 1.
tion wire harness and trailer frame.
If no continuity exists, remove and clean mating surfaces.
Disconnect rear section wire harness from reach tube section wire
Step 2.
harness. Check continuity between socket D and trailer frame.
Step 3.
harness.
Check continuity between pin D and socket D of intervehicular cable.
Step 4.
If no continuity exists, replace intervehicular cable (page 2-7).
Check continuity between edge of lamp socket and light assembly
Step 5.
housing.
If no continuity exists, replace light assembly (page 4-18).
Check continuity between edge of lamp socket and trailer frame.
Step 6.
If no continuity exists, remove and clean mating surfaces.
4-12