Glow Controller
The glow controller is located under the console cover.
2
NOTE: Refer to Chapter 9 − Electrical Schematics and
Diagrams when troubleshooting the controller.
3
6
Controller Operation
2
1
5
4
1.
the controller energizes the glow plugs and illuminates
the glow indicator light for approximately 7 seconds.
When the ignition switch is placed in the ON position,
2.
tion, the glow plugs will energize and the glow indicator
When the ignition switch is held in the START posi-
1
light will not light.
3.
When the ignition switch is released from START to
ON, the glow plugs will de−energize and the glow indica-
tor light will remain off.
3
Figure 35
1.
2.
Glow controller end view
Controller top view
3. Controller side view
Controller Checks
1.
Make sure there is power from the battery.
5.
If any of the conditions in step 3 are not met or power
to terminal 1 exists and any of the other conditions in
step 4 are not met:
2.
lenoid to prevent the engine from starting.
Disconnect electrical connector to the engine run so-
A. Verify continuity of the circuitry from the battery to
the glow relay and glow plugs (see Chapter 9 − Elec-
trical Schematics and Diagrams).
3.
Place ignition switch in the ON position. Verify the fol-
lowing while in the ON position:
A. Glow indicator light is on.
B. Glow relay is energized.
C. Glow plugs are energized.
B. Verify continuity of the circuitry from the battery to
ignition switch, glow controller, glow indicator light,
glow relay, and ground (see Chapter 9 − Electrical
Schematics and Diagrams).
D. Glow indicator light goes out and glow plugs de−
energize after 7 seconds.
C. Replace components as necessary.
6.
Reconnect electrical connector to the run solenoid.
4.
Place ignition switch in the START position. Verify
the following while in the START position:
A. Glow indicator light is out.
B. Glow relay is energized.
C. Glow plugs are energized.
D. Power exists to terminal 1 of the glow controller.
NOTE: If there is no power to terminal 1 of the glow con-
troller, verify continuity of the circuitry from the ignition
switch to the controller and perform step 4 again (see
Chapter 9 − Electrical Schematics and Diagrams).
Groundsmaster 4100−D
Page 5 − 23
Electrical System
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