TM 5-2420-230-24-1
Table 3-6. Unit Troubleshooting Table. -- Continued
Malfunction
Test or Inspection
Corrective Action
29.
RIGHT JOYSTICK INOPERABLE.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a
direct short may result. Damage to equipment and injury or death to personnel may occur.
Step 1.
Disconnect electrical connector HX10 (1) from right joystick (2) (refer to FO-3).
Step 2.
Disconnect electrical connector HJ1 (3) from ECU (4) (refer to FO-3).
Step 3.
Turn ignition switch to IGN position (TM 5-2420-230-10).
Step 4.
Check for 12 Vdc on pin 1 of electrical connector HJ1 (3) (refer to FO-3).
If 12 Vdc is not present, set ignition switch to OFF and replace ECU (4) (Para 12-32).
If 12 Vdc is present, set ignition switch to OFF and proceed to Step 5.