When troubleshooting a J1939 bus, what has occurred if a suspect parameter group (SPG) is assigned to a component??
A) ?The component has failed
B) ?The ECM has failed
C) ?The ECU has failed
D) ?The component is reporting an abnormal condition circuit

Question

Quizplus · Accepted Answer

When a suspect parameter group (SPG) is assigned to a component in a J1939 bus, it indicates that the component is reporting an abnormal condition or circuit. This does not necessarily mean the component has failed completely but is an alert to a potential issue that needs further investigation.

When Troubleshooting a J1939 Bus, What Has Occurred If a Suspect