7948 SPN Fault Code

Name:

Electrified Accessory Motor Controller Status Reason Code

Description:

Provides the reason code describing the unique failure of this Electrified Accessory Motor system or component.If a detailed reason code is not used by the supporting application, or this reason code is Not Available, the Electrified Accessory Motor Service Indicator (SPN 7953) and Electrified Accessory Motor Operating Status (SPN 7954) may be used to determine functional status of this Electrified Accessory motor system or component. 0000b = Normal Operation 0001b = Unable to Start 0010b = Over-Voltage Protection Shutdown 0011b = Under-Voltage Protection Shutdown 0100b = Over-Temperature Protection Shutdown 0101b = Speed Limited due to current (i.e. amperage) protection limit 0110b = Speed limited due to maximum system design capability (e.g. PWM control limit or physical limit of system) 0111b = Speed limited due to torque limit 1000b = Speed limited due to over-temperature protection 1001b = Reserved 1010b = Reserved 1011b = Reserved 1100b = Reserved 1101b = Reserved 1110b = Reserve

7948 spn fault code name is Electrified Accessory Motor Controller Status Reason Code. If you don't take the time to look into 7948 spn fault when it arises, it can add up quickly. One small issue like 7948 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 7948 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.

7948 SPN Fault Code

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