ALOA CMAL Practice Questions - ALOA Certified Master Automotive Locksmith (CMAL) - Top Automotive Credential Exam

A K-line (ISO 9141/KWP2000) diagnostic interface operates at what logical voltage level idle?

Battery voltage (~12V) idle, pulled low to transmit 3.3V LVTTL 5V TTL 0V (ground)

Correct Answer:

Battery voltage (~12V) idle, pulled low to transmit

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