5688 SPN Fault Code

Name:

Engine Exhaust Gas Port 3 Difference from Average Temperature

Description:

The difference in temperature of exhaust port 3 from the average of all exhaust ports on an engine. If the port temperature is above the average temperature, then the temperature would be interpreted as above normal. For systems with three or fewer thresholds in either extreme (FMI 0, 1, 15, 16, 17 or 18) use SPN 1139.

5688 spn fault code name is Engine Exhaust Gas Port 3 Difference from Average Temperature. If you don't take the time to look into 5688 spn fault when it arises, it can add up quickly. One small issue like 5688 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: The name and description of 5688 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.

5688 SPN Fault Code

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Description:

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