7689 SPN Fault Code

Name:

Aftertreatment 2 Outlet Gas Sensor 2 Heater Control

Description:

Indicates the heater status in the warm-up process. Upon receiving a power-up command, the gas second sensor ramps up according to a manufacturer defined profile. The Preheat 1, Preheat 2, and Automatic messages are regions within this profile in exhaust bank 2.For a single exhaust bank system, refer to parameters in PGNs 61454, 61455, 64946, 64947, 64948, and 65247. 00b = Automatic 01b = Preheat 2 10b = Preheat 1 11b = Heater off

7689 spn fault code name is Aftertreatment 2 Outlet Gas Sensor 2 Heater Control. If you don't take the time to look into 7689 spn fault when it arises, it can add up quickly. One small issue like 7689 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 7689 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.

7689 SPN Fault Code

Name:

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