7663 SPN Fault Code

Name:

Aftertreatment 1 Outlet Gas Sensor 2 at Temperature

Description:

Indicates that the heater element of the aftertreatment outlet gas second sensor, either NOx or O2, is within the manufacturer�s specified range for accurate measurements in exhaust bank 1.00b = Not in range 01b = In range 10b = Error 11b = Not available

7663 spn fault code name is Aftertreatment 1 Outlet Gas Sensor 2 at Temperature. If you don't take the time to look into 7663 spn fault when it arises, it can add up quickly. One small issue like 7663 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 7663 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.

7663 SPN Fault Code

Name:

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