Technician A says that trailer ABS fault codes are stored in the controller ECU volatile memory.Technician B says that ABS fault codes can usually be displayed at the controller ECU.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

ABS fault codes are typically stored in non-volatile memory, not volatile memory, so they are retained even when power is lost. Technician B is correct that ABS fault codes can usually be displayed at the controller ECU.

Technician a Says That Trailer ABS Fault Codes Are Stored