TRANSMISSION OIL TEMPERATURE INDICATOR CIRCUIT. (Cont)

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

To access indicators, remove driver's instrument (gage) panel. Refer to

Step 1.

page 2-571. Disconnect lead 27 from XMSN OIL TEMP indicator. Place

red probe in lead 27. Ground black probe. Set MASTER and INST

switches ON. If multimeter indicates no voltage, go to step 2. If

multimeter indicates about 24 volts, go to step 3. Set MASTER and INST

switches OFF. Connect lead 27 to XMSN OIL TEMP indicator.

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Disconnect wiring harness from instrument (gage) panel. Place red probe

Step 2.

on pin F (lead 27) of receptacle. Ground black probe. Set MASTER and

INST switches ON. If multimeter indicates no voltage, repair lead 27 from

INST switch to receptacle. Refer to page 2-371. If multimeter indicates

about 24 volts, repair lead 27 from plug to instruments. Refer to page

2-371. Set MASTER and INST switches OFF. Connect wiring harness to

instrument (gage) panel.

2-162