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Mercruiser Trailer Button Not Working, Jun 6, 2020 · Tilt Trim Not Working or outdrive stuck down? Here's something simple to try. Blue is the up and green is the down. If you have a separate trailer button on your shifter, you need to hold both the trailer and trim up buttons simultaneously for the sterndrive to switch from trim mode to tilt mode for trailering. Hit the trim up button on your switch. Clean it up and save money and don't by the part. 10 When this switch fails, the TRIM BUTTON does not work. What could be the reason for this? The outdrive goes up and down within the normal operating range fine? Answer - I'm happy to assist you with that. With the outdrive all the way down, press the trim button, not the trailer button. The purple wire is part of the limit switch circuit. This is because the switches are sold in sets of two. or one onethousand two onethousand threeonethousand count. Take the multimeter leads and put one on the ground and one on the blue wire on the solenoid. Sep 3, 2025 · Jump either the blue or the green to 12 volt to get it working. Unplug, and with a voltmeter (+ in the connector - to ground) press the trailer switch. Jun 3, 2018 · General Q & A - Bravo 1 up trim not working works with separate trailer switch - Ok did mercruiser solenoid check they both pass and are almost new. Jun 26, 2012 · Re: Trim up doesn't work, but trailer switch does the trim sender and trim limit switch wiring comes in through the transom assembly and connects near the rear of the engine. Mercruiser Alpha one Trim up not working solution. Jul 2, 2025 · If you have a good ground, then switch the multimeter to voltage. When one switch fails, you will end up replacing both switches. Inspect blue and green wires powering the pump and red/red-blue power feeds for damage or loose contacts. What could be the reason for this? 301 Moved Permanently 301 Moved Permanently cloudflare. The blue wire gets 12 volts only when the toggle is held up or the trailer switch is pushed in. This is a dry setting and only gets you in the ball park. The green wire gets 12 volts when the trim toggle is held down. Both the Trim Limit and the Trim Sender switches are sold together as a pair. at this point it should stop. The outdrive should come up, rule of thumb is 3 -3 1/2" of trim ram extension. Apr 27, 2006 · When you push the buttons up down or trailer it sends voltage back to the small blue w/white striped or green w/white striped wires on the solenoid (s Now the trim up switch on the old unit circuit runs through the reverse lock out and upper limit switch on the outdrive then to solenoid. Replaced both trim senders with factory mercruiser ones. Look for the black wire going into the connector with two B/W wires. If the trim up button fails but the outdrive moves normally, inspect the trim switch for corrosion or worn contacts. At the commander switches, the red wire will always have 12 volts. If you have 12V there the problem is with the B/W Dec 11, 2023 · Install Mercruiser alpha one outdrive to boat - All important steps How to properly add grease to your outdrive boat fittings/ports DIY Raptor Club Part 1 Unisex Classic Pullover Hoodie Dec 2, 2012 · The key does not need to be on for the trim to work. +1 with Chris, look to the blue/white wire. The trailer button does Mechanic's Assistant chat Customer: I have a 1995 Mercruiser Alpha One with remote control and separate buttons for the trailer and trim. 4 L and Bravo 3 As stated in message title, trim will go down but only goes up with Trailer button. When the outdrive is stuck down despite a working trim switch, check the trailer switch and wiring connections near the hydraulic pump. Jun 4, 2013 · Re: Alpha one outdrive trim up button and trailer button not working. Should I focus on "up switch" in shifter handle or is there an up relay or solenoid that I need to replace? When I hit up button NOTHING happens. Back near the transom you will see two black wires coming in from the outdrive. These two wires go into Apr 27, 2006 · When you push the buttons up down or trailer it sends voltage back to the small blue w/white striped or green w/white striped wires on the solenoid (s Now the trim up switch on the old unit circuit runs through the reverse lock out and upper limit switch on the outdrive then to solenoid. Check wiring connections between the switch and the trim pump relay for damage or looseness. Jul 7, 2014 · Be careful if you use the trailer button to raise the drive during operation. So you will have to follow that wire back. The boat must be water tested May 19, 2017 · 1997 Cobalt 233 with 7. Are you getting at least 12v? If not, you are not getting a signal to your solenoid from your switch. Outdrive stuck down due to faulty trim switches or hydraulic pump electrical issues. You can damage the gears in your outdrive if you operate the drive past where the trim limit would stop it (where it typically stops before you use the trailer button to raise the drive into its full-up position). Apr 12, 2012 · Re: Trim Up / Out working only with Trailer button Yeah you should probably try to resecure the pump, should be pretty easy to locate original mounting point. Don't know what year you have but will take a stab at it. The trailer switch bypasses the TL switch at the connector in the stern. Only the TRAILER BUTTON will work. As for your trim, 99% of the time it is an open trim limit switch circuit. 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