TM 5-2420-230-24-1
Table 3-6. Unit Troubleshooting Table. -- Continued
Malfunction
Test or Inspection
Corrective Action
40.
TRANSMISSION OIL TEMPERATURE GAUGE DOES NOT WORK.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts battery terminal, a
direct short may result in instant heating of tools, damage to equipment, and injury or death to
personnel.
Step 1.
Check TRANSMISSION OIL TEMPERATURE gauge (1) and sending unit (2) for proper operation and
good connections.
If sending unit (2) does not function correctly, replace sending unit (Para 4-7).
If connections at sending unit (2) are loose or broken, tighten or repair connections as necessary.
Step 2.
Remove wire 271 at sending unit (2) and ground to vehicle chassis. Have an assistant watch
TRANSMISSION OIL TEMPERATURE gauge (1) to verify its operation (refer to FO-3).
If no movement is noticed, check continuity of wire 271. Replace wire harness if
necessary (Para 12-27 or Para 12-39).
If wire 271 has continuity, replace TRANSMISSION OIL TEMPERATURE gauge (1) (Para 12-23).
Change 1