Lots of things can cause the trifecta and "engine failsafe prog."

When my alternator went, it did not trip this code. (Neither time)
When my idle control valve was faulty, it tripped this code.

Pretty sure I saw it for other reasons over the years too, and saw it happen spuriously (i.e. without a reason).

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2003 3.0 5MT Topasblau
Purchased in 2016 and sold in 2024
2012 35d Platingrau