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2 beeps + Guardian Mode

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  • 2 beeps + Guardian Mode

    I got the 2 beeps per minute alarm, followed by a loss of power. Based on what I’ve read, I assume I’m in guardian mode, which would explain the limited power. Engine idles & sounds fine. Gauges look good & fluids are good. Based on what I’ve read, it may be a sensor. It’s my understanding it’s not the IAC if it idles fine. Any suggestions or things to check/troubleshoot while I wait for a mechanic to scan it? Naturally, this occurred on day 1 of vacation and I’m 4 hours away from home. Also, it was Friday night. Finding someone on a Saturday will be a challenge. 2004 350 MAG B3.
    "Aquatic Justice"
    2004 Crownline 230BR
    350 Mag Bravo III
    Prestige Trailer

  • #2
    Your best bet is to find a Merc reader at a shop and let them tell ya. You can find all the issues that send it into guardian mode but its still a list of 10 or so.
    1995 Powerquest 257 XL Legend
    496 MAG, Bravo III w/ 28's
    Good Enough Too

    Previous: 1997 Crownline 202 BR - Good Enough

    Towwer: 2001 Chevy Suburban, Murdered, 4x4, Loaded