TM 9-2320-272-24-1
Table 2-3. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TRANSFER CASE SYSTEM
44. TRANSFER CASE CONTROL LEVER WILL NOT SHIFT FROM LOW TO HIGH OR HIGH TO LOW WHEN VEHICLE
IS IN MOTION
Test 1. Test transfer case control circuit breaker (malfunction 35, test 3).
Test 2. Test transfer case control switch.
Step 1. Place battery switch to OFF position.
Step 2. Disconnect lead 585 from transfer case control switch.
Step 3. Place battery switch to ON position.
Step 4. Set multimeter to 50-volt range.
Step 5. Connect multimeter negative lead to vehicle chassis ground and positive lead to lead
585. Multimeter should indicate battery voltage.
a. If battery voltage is not indicated, repair or replace lead 585 (para. 131).
b. If battery voltage is indicated, connect lead 585 and disconnect lead 586 from control
switch.
Step 6. Place transmission control lever to NEUTRAL position. With negative lead of meter
connected to ground and, with transfer case switch button depressed, touch positive lead
to lead 586 terminal on control switch. Multimeter should indicate battery voltage.
If battery voltage is not indicated, notify DS maintenance.
END OF TESTING!
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