CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
2-19 ELECTRICAL TROUBLESHOOTING-Continued
ENGINE OIL TEMPERATURE GAGE--Continued
Remove all jewelry such as rings, dog
tags, bracelets, etc. If jewelry contacts a
metal surface a direct short may result in
instant heating of tools, damage to
Reconnect wire 27C to engine oil temperature gage.
Disconnect wire 33 from engine oil temperature gage.
Turn MASTER switch on and check engine oil
temperature gage for operation. Engine oil
temperature gage should read full scale. Ground case
of engine oil temperature gage and check gage for
operation. Gage should read "0." Turn MASTER
switch OFF. If engine oil temperature gage reads
correctly, go to step D. If engine oil temperature gage
fails to read correctly, replace engine oil temperature
gauge (see paragraph 6-8).
Disconnect gage panel to bulkhead wiring harness
from gage panel. Check wire 33 in gauge panel
harness for continuity by placing red lead of multimeter
on wire 33 and black lead on pin E. If continuity is
present, go to step E. If continuity is not present,
repair/replace wire 33 of gage panel wiring harness
(see paragraph 6-44).