202
UnclassifiedCooling
What This Code Means
Engine coolant temperature has risen to an unacceptable level for the configured time delay
Possible Causes
- •Engine has begun to overheat
- •High coolant temperature warning fault condition active for the duration of the HCT Warning Time Delay (coolant temperature exceeds HCT Warning Threshold)
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Get a diagnosis walkthrough for 202 on your specific Cummins unit — cited to the OEM manual, not a forum guess.
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