TM 9-2350-247-20-1
HI TEMP DIFF OIL INDICATOR MALFUNCTIONS (M548A1)—Continued
0058 00
CY
1. Remove HI TEMP DIFF OIL indicator cover lens (1), gasket (2),
bulb (3) and gasket (4) from indicator assembly.
2. Measure voltage between indicator center contact and ground.
3. Does multimeter read less than 17 volts?
YES
NO
GO TO DY (PAGE 0058 00-5)
2CY
1. Remove power harness circuit 328/27K plug (1) from HI TEMP
DIFF OIL indicator jack (2).
2. Measure voltage between circuit 27K pin and plug on ground.
3. Does multimeter read less than 17 volts?
YES
NO
2CYN
1. Replace HI TEMP DIFF OIL
indicator assembly (WP 0264 00).
2. Verify no faults found.
3CY
1. Check to see if other indicators on the warning light panel is
operate normally.
2. Do any o f the other indicators on the warning light panel operate
normally?
YES
NO
3CYN
1. Repair power harness circuit 27F
(WP 0294 00).
2. Verify no faults found.
0058 00-4
