Multiple Choice
Why does the main power relay on a Bosch Motronic fuel injection system contain a diode?
A) To protect the PCM against voltage surges
B) To protect the PCM against accidental polarity reversals
C) To keep the relay energized in case of relay circuit driver failure within the PCM
D) Both A and B are correct
Correct Answer:

Verified
Correct Answer:
Verified
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