SECTION 55 - ELECTRICAL SYSTEM
55-52
ELECTRONIC INSTRUMENT CLUSTER
(EIC) AND STARTER CIRCUITS:
BLOWN FUSE SYMPTOMS AND TESTING
Electronic Ignition Fuse, 1
(Cab Fuse Panel - 5A)
Service/Run Switch “Run” Position
1. Board shows self test (with operator in seat).
2. Board shows 5.2 volts.
3. Board seat belt and park brake lights will flash.
4. Board seat belt light will go off when seat belt is
buckled. Park brake light will still flash.
5. Key “ON” position - board will show 5.2 volts and
no preheat cycle.
6. Engine will crank but will not start.
7. Toggle Service/Run switch to “SERVICE”
position - unit will start.
19984337
1
50
Electronic Battery Fuse, 1
(Engine Fuse Panel - 5A)
Service/Run Switch “Run” Position
1. When operator sits in seat, the board will not
power up - no readings.
2. Unit will not crank.
3. Toggle Service/Run Switch to - “SERVICE”
position - unit will crank and may start if engine
is warm, NO preheat is available.
Key Main Fuse, 2
(Engine Fuse Panel - 15A)
Service/Run Switch “Run” Position
1. Board will power up and self test.
2. Board seat belt and park brake lights will flash.
3. Board seat belt light will go off when seat belt is
buckled; the park brake light will still flash.
4. Key on - system dead.
5. Toggle Service/Run Switch to “SERVICE”
position - system dead.
19984973
2
1
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