TM 10-4610-239-24
TM 08580B-24/3
Table 2-2. Unit Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
FLATBED CARGO TRAILER ELECTRICAL SYSTEM - Continued
2. ONE OR MORE LAMPS FAIL TO LIGHT - Continued
Step 1.
Unplug power cable assembly and check for 24 V dc at towing vehicle receptacle.
If 24 V dc is present, plug power cable assembly into towing vehicle receptacle and
go to step 2.
If 24 V dc is not present, refer to towing vehicle maintenance manual.
Step 2.
Unplug power cable assembly wire from chassis wiring harness and check for 24 V dc
at power cable assembly wire.
If 24 V dc is present, plug power cable assembly wire into chassis wiring harness and
go to step 4.
If 24 V dc is not present, go to step 3.
Step 3.
Check six in-line connectors, one ground lug, and associated wires for damage.
If connectors and wires are not damaged, go to step 4.
If connector or wire is damaged, replace power cable assembly. Refer to paragraph
Step 4.
Unplug chassis wiring harness wire from left side composite light assembly wire and
check for 24 V dc at chassis wiring harness assembly.
If 24 V dc is present, plug chassis wiring harness wire into left side composite light
assembly wire and replace faulty bulb. Refer to TM 10-4610-239-10.
If 24 V dc is not present, replace power cable assembly. Refer to paragraph 2-63.
If 24 V dc is still not present, notify Direct Support Maintenance.
3. DIM OR FLICKERING LAMPS
NOTE
Refer to figure 2-4 for power cable assembly support diagram.
Refer to figure 2-5 for chassis wiring harness support diagram.
Refer to figure 2-6 for chassis wiring support diagram.
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