ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
TEST OR INSPECTION
30. ALL DUMP BODY MARKER LIGHTS DO NOT WORK.
Although KEY SWITCH must be on and battery ground cable connected to test electrical circuit
voltage, turn off KEY SWITCH and disconnect battery ground cable before doing resistance tests
or replacing parts. This will keep you from getting shocked and prevent damage to parts and
Scrape painted surfaces to bare metal before connecting test leads to ensure correct multimeter
The following step will be performed on right taillight.
Using multimeter, set to 20 vdc scale. Using number one cross-tip screwdriver, unscrew
and take out four screws (1). Take off cover (2). Using multimeter, set to 20 vdc scale.
Put LIGHTS switch (3) in down position. Connect red test lead to white wire (4) and black
test to ground. Check for 11 to 13 vdc on multimeter. Put LIGHTS switch (3) in center
position and disconnect test leads.
If multimeter reads 11 to 13 vdc, white wire (4) must be
Notify Direct Support maintenance.
If multimeter does not read 11 to 13 vdc, go to
BOTH TAILLIGHTS DO NOT WORK (page 2-282).