151
UnclassifiedCooling
What This Code Means
High AC Current; Shutdown; Low Oil Pressure; High Coolant Temperature; Pre - High Coolant Temp - Warning; CIRCUIT BREAKER (AC MAIN) TRIPS; EXCESSIVE EXHAUST SMOKE (BLACK)
Possible Causes
- •Overload
- •Faulty CTs or CT connections
- •Faulty harness or base board
- •Incorrect rating setup
- •Low oil level
- •Clogged oil pipe or filters
- •Faulty oil pressure sensor
- •Faulty engine or sensor circuitry
- •Low coolant level
- •Coolant leak
- •Obstructions in cooling air-flow
- •Increase in load
- •High ambient temp
- •Loose wire connections
- •Excessive or improper loads
- •Fuel supply issues
- •Intake restriction
- •Excessive loads
Suggested Actions
- 1Perform fault simulation with InPower
- 2Reset or adjust threshold
- 3Check CTs and CT connections
- 4Check harness and base board
- 5Reset Control & restart
- 6Perform fault simulation with InPower for oil pressure sensor
- 7Top up oil level
- 8Check oil pipe and filters for clogs
- 9Check oil pressure sensor with simulator
- 10Perform fault simulation with InPower for coolant sensor
- 11Check engine or sensor circuitry
- 12Check coolant temperature sensor reading with thermocouple
- 13Check coolant temperature sensor resistance
- 14Check coolant level
- 15Check for coolant leaks
- 16Check for obstructions in cooling air-flow
- 17Refer to PCC1302 troubleshooting guidelines
- 18Review fault code 151 correction list for other possible causes
- 19Evaluate fault codes
- 20Check loads
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