1472

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

Suggested Actions

1. 1Perform fault simulation with InPower
2. 2Reset or adjust threshold
3. 3Check CTs and CT connections
4. 4Check harness and base board
5. 5Reset Control & restart
6. 6Perform fault simulation with InPower for oil pressure sensor
7. 7Top up oil level
8. 8Check oil pipe and filters for clogs
9. 9Check oil pressure sensor with simulator
10. 10Perform fault simulation with InPower for coolant sensor
11. 11Check engine or sensor circuitry
12. 12Check coolant temperature sensor reading with thermocouple
13. 13Check coolant temperature sensor resistance
14. 14Check coolant level
15. 15Check for coolant leaks
16. 16Check for obstructions in cooling air-flow

Related Onan Fault Codes