4378 SPN Fault Code
4378 spn fault code name is Aftertreatment 1 Outlet NH3 Sensor Preliminary FMI. If you don't take the time to look into 4378 spn fault when it arises, it can add up quickly. One small issue like 4378 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 4378 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.
Truck List With 4378 SPN Code :
- International Durastar 4300 4378 SPN Code
- BharatBenz 1917R 4378 SPN Code
- Sterling L7500 4378 SPN Code
- Western Star 5900 4378 SPN Code
- Isuzu 4HE1XS 4378 SPN Code
- Toyota Tacoma 4378 SPN Code
- Freightliner Cascadia EVO 4378 SPN Code
- Peterbilt 536 4378 SPN Code
- Volvo VNM64T200 4378 SPN Code
- GMC T7500 4378 SPN Code