STOPLIGHT DOES NOT WORK WHEN TRACTOR BRAKES ARE APPLIED - CONTINUED

TM 9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

33. STOPLIGHT DOES NOT WORK WHEN TRACTOR BRAKES ARE APPLIED - CONTINUED.

Step 16.

Close instrument panel (page 4-244). Disconnect wire no. 003 (1) from end

connector (2). Using multimeter set at 30 vdc, put red probe on wire no. 003 (1)

and black probe to good ground. While assistant applies brakes, take read-

ing, and release brakes.

If meter shows no voltage, plug wires back in and notify direct support

maintenance.

Disconnect wire no. 004 (3) from end connector (4). Using multimeter set at 30

Step 17.

vdc, put red probe on wire no. 004 (3) and black probe to good ground. While

assistant applies brakes, take reading, and release brakes.

Plug in wire (3) and notify direct support maintenance.

TA239681

3-94