Memory Erase

NOTE: Ensure all diagnostic codes are extracted from the ECU memory before disconnecting battery or switching from Mode III into Mode IV.

Stored memory will be erased if battery is disconnected or Mode IV is selected after Mode III has been accessed. However, if mode selector switch is turned fully clockwise, diagnostic modes will continue to cycle, from Mode I to Mode V, and will keep cycling in the same order, until a certain mode is selected. This does not erase the stored memory.