BOTH HEADLIGHTS DO NOT WORK. - TM-9-2320-270-20-10111

TM 9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 2.

Pull back rubber floor mat (5). Using 3/8-inch flat-tip screwdriver, unscrew and

take out two screws (6) and Iockwashers (7) from cab floor (8) and dimmer

switch (9). Push dimmer switch (9) down through cab floor (8) and pull out

through access hole (10) under cab (11). Using multimeter set at 30 vdc, put

red probe on dimmer switch terminal (12) and black probe on cab (11).

If meter reads no voltage, put headlight switch in OFF position.

if meter reads voltage, replace dimmer switch (page 4-307), put

headlight switch in OFF position and close instrument panel

If both headlights still do not work, perform steps under ONE HEAD-

LIGHT DOES NOT WORK (page 3-47).

TA239638

3-49