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Re: 3 Questions on Mechanical Relays
Posted to Technical Theory Forum on 7/8/2023 41 Replies

I agree with Steve and Lee. The diode in relay #2 is installed in the wrong polarity. The way it's shown, when the PCM tried to energize the relay, all of the current would flow through the diode and probably blow the transistor in the PCM. The diode should be... Login to read more.

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