PARKING BRAKE VALVE STOPLIGHT SWITCH INOPERATIVE CONTINUED

TM 9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

34. PARKING BRAKE VALVE STOPLIGHT SWITCH INOPERATIVE CONTINUED.

At diode (1), using multimeter set at 30 vdc, disconnect plug on wire no.

Step 4.

360. Put red probe on wire no. 360 (2), and black probe on good ground.

If meter reads no voltage, plug in wire, close instrument panel (page

4-244) and notify direct support maintenance.

At diode (1), disconnect wire no. 429 (3). Using multimeter set at 30 vdc,

Step 5.

put red probe on diode and black probe to good ground.

If meter reads no voltage, replace diode (page 4-323).

Step 6.

At disconnected end of diode wire no. 429 (3), using multimeter set at

30 vdc, put red probe on wire no. 429 and black probe to good ground. Apply

brakes.

Plug in wire no. 429 (3), close instrument panel (page 4-244), and

notify direct support maintenance.

TA239683

3-96