o Disconnect lead AAG from switch connector. Using a multimeter,
check for voltage by placing the red probe in the switch and
grounding the black probe (Fig. 57). Set the MASTER switch to
the ON position and hold the switch in the DOWN position. If no
voltage is indicated, replace the upper rear door switch.
If
voltage was indicated, set the MASTER switch to the OFF position,
reconnect lead AAF to the switch, and continue troubleshooting.
Figure 57.
Lead AAG at Upper Rear Door Switch.
o Disconnect the harness connector from the ballistic shield
directional control valve solenoid, place the red probe of the
multimeter on pin B, and ground the black probe (Fig. 58). Set
the MASTER switch to the ON position and place the top upper door
switch in the DOWN position. If no voltage was indicated, lead
AAG between the solenoid and the rear door switch is defective
and you must notify support maintenance. Place the bottom upper
door switch in the DOWN position.
If the multimeter does not
indicate voltage, lead AAG to the bottom switch is defective and
you must notify support maintenance. If voltage was indicated on
both circuits, set the MASTER switch to the OFF position and
continue to troubleshoot the problem.
o Place the red probe of the multimeter in pin socket A and ground
the black probe (Fig. 59).
Set the MASTER switch to the ON
position and place the top upper door switch in the UP position.
If no voltage is indicated, lead AAF between the solenoid and the
rear door switch is defective and you must notify support
maintenance.
Place the bottom upper door switch in the UP
position. If the multimeter does not indicate voltage, lead AAF
between the solenoid and the bottom switch is defective and you
58
OD1703
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