What does the 93AB fault code mean for a 2012 BMW Mini?
1 Answers
It indicates a relay sticking issue, requiring relay replacement. Function of automotive relays: Automotive relays essentially function as "automatic switches" that use small currents to control larger current operations. They serve purposes such as automatic regulation, safety protection, circuit switching, and on/off control in electrical systems. Selection criteria for automotive relays: Key environmental factors include temperature range (maximum and minimum), humidity (typically maximum relative humidity at 40°C), low air pressure (can be disregarded below 1,000 meters altitude), vibration, and impact. Additional considerations involve encapsulation methods, installation approaches, dimensional specifications, and insulation requirements. Given variations in materials and construction, relays have different tolerance levels for mechanical environmental conditions. Using relays beyond their specified environmental mechanical limits may cause damage. Selection should be based on either the complete system's environmental mechanical conditions or the next higher grade specifications.