00 − 0CM
UnclassifiedCooling
What This Code Means
Unbalanced Output Voltage; Engine Oil Leak; Coolant Loss; Coolant Temperature Above Normal
Possible Causes
- •Poor sense leads condition
- •Sense leads not fully seated in connector to voltage regulator
- •Incorrect oil level
- •Loose hose or drain fittings
- •Faulty oil filter seal
- •Incorrect coolant level
- •Cracked or leaking hoses
- •Loose hose clamps
- •Coolant leaking into oil
- •Faulty coolant temperature switch
- •Faulty coolant level switch
- •Faulty breaker
Suggested Actions
- 1Check sense leads condition
- 2Ensure sense leads are fully seated in connector to voltage regulator
- 3Clean contaminated area
- 4Check oil level
- 5Check loose hose or drain fittings
- 6Check oil filter seal
- 7Perform checks for leaks while running with dye in oil
- 8Check coolant level
- 9Check for cracked or leaking hoses
- 10Check for loose hose clamps
- 11Check for coolant in oil
- 12Pressure test cooling system (cold)
- 13Pressure test cooling system (hot)
- 14Check coolant temperature switch
- 15Check coolant level switch (if equipped)
- 16Check fault breaker
Related Onan Fault Codes
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