I have twin 2005 Mercruiser MPIs (0W048000)with Bravo 3's (0W252400).
The boat had only analog gauges until I installed a Mercury VesselView 403. Nice unit, made by Navico.
The 403 shows a fault on each engine - TRIM CKT HI. I believe that this is because the DIGITAL TRIM on the engine harness has nothing attached to it - see attached picture. The 403 has a configuration setting "Has Trim" for each engine, and even though I set it to false (checkbox cleared), the trim fault on one of the engines still shows on the 403 (as opposed to the same fault on both engines before I cleared Has Trim). I believe that TRIM CKT HI just means that Smartcraft has detected an open circuit on the engine harness line labeled DIGITAL TRIM - nothing is attached to this line on either engine.
I know I can pull the boat and install a digital/analog trim sender, but I dont need this because I already have a functional analog trim gauge on the boat. (OK, maybe this would enable Active Trim if I did.)
What can I attach to the dangling DIGITAL TRIM line so that Smarcraft no longer sees this as an open circuit:
-- 5K Ohm resistor between the DIGITAL TRIM and black ground wire?
-- a 1.5 V battery between the DIGITAL TRIM wire and the black ground wire?
I dont know what kind of signal the DIGITAL TRIM wire is looking for so that the circuit is no longer open (e.g. resistamce, voltage, etc.). Any ideas?
The boat had only analog gauges until I installed a Mercury VesselView 403. Nice unit, made by Navico.
The 403 shows a fault on each engine - TRIM CKT HI. I believe that this is because the DIGITAL TRIM on the engine harness has nothing attached to it - see attached picture. The 403 has a configuration setting "Has Trim" for each engine, and even though I set it to false (checkbox cleared), the trim fault on one of the engines still shows on the 403 (as opposed to the same fault on both engines before I cleared Has Trim). I believe that TRIM CKT HI just means that Smartcraft has detected an open circuit on the engine harness line labeled DIGITAL TRIM - nothing is attached to this line on either engine.
I know I can pull the boat and install a digital/analog trim sender, but I dont need this because I already have a functional analog trim gauge on the boat. (OK, maybe this would enable Active Trim if I did.)
What can I attach to the dangling DIGITAL TRIM line so that Smarcraft no longer sees this as an open circuit:
-- 5K Ohm resistor between the DIGITAL TRIM and black ground wire?
-- a 1.5 V battery between the DIGITAL TRIM wire and the black ground wire?
I dont know what kind of signal the DIGITAL TRIM wire is looking for so that the circuit is no longer open (e.g. resistamce, voltage, etc.). Any ideas?
