9028 SPN Fault Code

Name:

DC/DC 4 Low Side Power

Description:

Indicates the measured SLI battery or low side power measured at the DC/DC Converter. The low side power is positive if the converter is charging the SLI battery from the hybrid battery (i.e. Buck Mode). The low side power is negative if the converter is charging the hybrid battery from the SLI battery (i.e. Boost Mode).

9028 spn fault code name is DC/DC 4 Low Side Power. If you don't take the time to look into 9028 spn fault when it arises, it can add up quickly. One small issue like 9028 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 9028 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.

9028 SPN Fault Code

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