Question

Intermittent faults with sensors, and most ABS system circuits, will usually set a DTC. However, the DTC will be stored instead of active when the technician retrieves them. What does this mean?

Answer 1

Stored Diagnostic Trouble Codes in an ABS system indicate past intermittent faults with sensors or system circuits which were detected previously but are not currently affecting the system.

Step-by-step explanation:

When a technician retrieves Diagnostic Trouble Codes (DTCs) from a vehicle's Anti-lock Braking System (ABS) and finds that they are stored, not active, this indicates that the intermittent faults with sensors or system circuits were detected previously but are not currently present or affecting the system. Essentially, these stored DTCs are like a history record of past issues, which can be useful for diagnosing recurring or potential problems. For the system to log an active DTC, the fault must be current and ongoing at the time of diagnosis.