CAT 3406E 7691 SPN Fault Code

Name:

Aftertreatment 2 Outlet NOx Sensor 2 Self-diagnosis Status

Description:

Self-diagnosis result status for second NOx sensor ATO2 (Aftertreatment Outlet Bank 2) 000b = Diagnosis not active 001b = NOx Sensor ATO2 Self Diagnosis active flag 010b = NOx Sensor ATO2 Self Diagnosis Result Complete 011b = NOx Sensor ATO2 Self Diagnosis aborted 100b = NOx Sensor ATO2 Self Diagnosis not possible 101b to 110b = Reserved 111b = Not Supported

CAT 3406E 7691 spn fault code name is Aftertreatment 2 Outlet NOx Sensor 2 Self-diagnosis Status. If you don't take the time to look into CAT 3406E 7691 spn fault when it arises, it can add up quickly. One small issue like CAT 3406E 7691 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 CAT 3406E 7691 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.

CAT 3406E 7691 SPN Fault Code

Name:

Description:

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