TM 9-2350-247-20-1
HI TEMP DIFF OIL INDICATOR MALFUNCTIONS (M548A1)Continued
0058 00
Y
1. Install indicator bulb, gaskets, and lens.
2. Remove engine harness circuit 328 plug (1) from differential oil
high temperature thermostatic switch (2).
3. Turn MASTER SWITCH ON.
4. Is HI TEMP DIFF OIL indicator off?
YES
NO
GO TO BY (PAGE 0058 00-3)
2Y
1. Install a jumper wire between engine harness circuit 328 plug pin
and ground.
2. Is HI TEMP DIFF OIL indicator ON?
YES
NO
GO TO CY (PAGE 0058 00-4)
3Y
1. Replace differential oil high temperature thermostatic switch
(WP 0285 00).
2. Verify no faults found.
0058 00-2