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Engine Control Unit (ECU) Diagnostic Trouble
Codes
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Diagnostic Trouble Code
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Display
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Solution
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ECU 97.16
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Engine Water Separator Full
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Drain water.
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ECU 100.1
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Engine Oil Pressure Low
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Check oil level.
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ECU 100.18
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Engine Oil Pressure Low
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Check engine oil level.
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ECU 103.0
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Engine System
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Reduce engine speed and load.
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ECU 105.0
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Engine Air Temperature High
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Reduce engine load. Check cooling system for debris.
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ECU 105.16
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Engine Air Temperature High
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Reduce engine speed and load.
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ECU 107.0
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Engine Air Filter Restricted
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Clean or replace air filter.
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ECU 110.0
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Engine Coolant Temperature High
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Reduce engine load. Check cooling system for debris.
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ECU 110.15
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Engine Coolant Temperature High
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Check cooling system for debris.
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ECU 110.16
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Engine Coolant Temperature High
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Reduce engine speed and load. Check cooling system for debris.
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ECU 110.17
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Engine Coolant Temperature Low
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Allow coolant temperature to increase.
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ECU 174.0
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Fuel Temperature High
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Check cooling system for debris.
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ECU 174.16
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Fuel Temperature High
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Check cooling system for debris.
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ECU 190.0
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Engine Speed High
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Reduce engine speed.
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ECU 412.15
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Engine System
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Check cooling system for debris.
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ECU 412.16
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Engine System
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Reduce engine speed and load.
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ECU 629.12
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Engine System
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Restart engine to attempt vehicle system recovery.
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ECU 641.16
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Engine System
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Reduce engine speed and load.
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ECU 1180.0
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Engine System
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Reduce engine speed and load. Check cooling system for debris.
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ECU 2630.0
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Engine System
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Reduce engine speed and load. Check cooling system for debris.
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ECU 2630.15
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Engine System
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Check cooling system for debris.
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ECU 2630.16
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Engine System
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Reduce engine speed and load. Check cooling system for debris.
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ECU 2790.16
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Engine System
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Reduce engine speed and load.
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