TM 5-3825-270-23&P
0036
GAUGE
HARNESS
CONNECTOR
1
2
3
4
5
6
BACK OF
CONTROL PANEL
Figure 7. Gauge Harness Connector - Step 4.
4.
With the aid of an assistant using jumper wire, connect black multimeter probe to black wire on engine coolant
temperature sending unit.
ENGINE COOLANT
BLACK
TEMPERATURE
WIRE
SENDING UNIT
Figure 8. Engine Coolant Temperature Sending Unit - Step 4.
5.
Note multimeter reading.
CONDITION/INDICATION
Are less than 200 ohms measured from ENGINE TEMP gauge harness connector, pin 3 to engine coolant
temperature sending unit?
DECISION
No - Go to step 5. (Step 5 - Are less than 200 ohms measured from ENGINE TEMP gauge harness connector,
pin 3 to interconnect harness connector, terminal 19?)
Yes - Replace engine coolant temperature sending unit. (WP 0115) Verify problem is solved. (Step 6 - Does
ENGINE TEMP gauge operate normally?)