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 :
- M GENERAL M998 4378 SPN Code
- Freightliner M2106 4378 SPN Code
- CAT CT660 4378 SPN Code
- Hino 195H 4378 SPN Code
- Freightliner MT45G 4378 SPN Code
- International DuraStar 4300 4378 SPN Code
- Hino 165 4378 SPN Code
- International 8600 2 AXLE H2N 4378 SPN Code
- Ottawa T2 4378 SPN Code
- Ottawa 4x2 OFF ROAD 4378 SPN Code