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ECM 1 fuse keeps blowing on my 94 S10 blazer,,what will cause this problem?

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Randy Ohler

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A bad relay or a shorted wire. Pull the relay, turn the ignition on. Fuse pops, bad wire from the ignition switch to the fuse/relay panel. If it doesn't, swap relays in the panel. Turn it on, if the fuse pops, bad wire to the ECM or the ECM has shorted internally. If it doesn't pop, replace the relay.

Posted on Jul 31, 2015

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Please review these articles:

Where's The Fuse?

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What To Expect From An Online Car Expert

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