CORRECTIVE ACTION - Continued
Position 4, circuit 1490, should have a reading of 1 - 5 volts, not 22 - 28 volts.
If 1 - 5 volts are not measured at position 4, replace cab digital control box.
Refer to TM 9-2320-435-10 or TM 9-2320-425-10.
Place positive (+) probe of multimeter on position 4, circuit 1490, of cab control box connector J2
(Figure 12). Note reading.
Turn engine start switch to OFF position. Refer to TM 9-2320-435-10 or TM 9-2320-425-10.
If 22 - 28 volts is not present at connector J2 position 2 and position 3, repair or replace cab
interface wiring harness. Refer to TM 9-2320-435-10 or TM 9-2320-425-10.
If 22 - 28 volts is present at connector J2 position 2 and position 3, proceed to next
Wiring Between Connectors J4 and P2 is Faulty (Model B Only).
Electrical power must be shut OFF from circuit before continuity can be checked.
Failure to comply with this caution may result in damage to test equipment or
Digital controller and cab control box are not repairable, therefore, it is necessary
to test digital controller and cab interface wiring harnesses, switches, solenoids,
and other components to identify possible faults other than digital controller and
digital cab controller.
Remove 6 screws and flatwashers from hydraulic cabinet cover and remove cover (Figure 14).
Hydraulic Cabinet Cover, WINCH OUT Solenoid Connector, and Connector J4.