‘15 Z1 - Touch Doesn’t Display Depth, Eng hours, Oil Pressure, Eng temp

[Gdub312]

Hi everyone, I’m wondering if anyone else has experienced this.

While out on the lake yesterday, and after working fine all day, the depth gauge was stuck at 0.0, and then found the engine hours, oil pressure, and engine temp also read 0.0.

I didn’t impact anything and the 0.0 reading were intermittent before they stayed there. Has anyone had this happen to them?

’15 Z1 Touch 2

Much appreciated!

[freeheel4life]

It won't display that info if the key is in the off position. Needs to be in IGN position(one turn to the right). If you are running/in IGN position and it does this I would guess you are experiencing a CAN loss between ECM and screen

[Gdub312]

It won't display that info if the key is in the off position. Needs to be in IGN position(one turn to the right). If you are running/in IGN position and it does this I would guess you are experiencing a CAN loss between ECM and screen

Thank you. This picture was taken while heading home. That day I spent a few hours boating and a couple hours anchored listening to music. When it started to happen, I noticed the depth gauge bounce back and forth from 0 to the actual depth. Then I noticed the other readings as well as the crank voltage listed at 0, again all while the engine is running and under way.

I realize now that I spent the day with the battery switch on the COMBINE setting. Could I have drained the crank battery?

[Bamer]

Without any knowledge like Freeheel4life has, i would start with measuring the voltages of both batteries with a voltmeter. Then charge up the batteries to see if symptoms go away.


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[Bamer]

Also can verify alternator is producing ~14.4V or so when running.


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[freeheel4life]

I'd definitely do as Bamer recommended. I would also try unplugging the depth finder when this happens and see if it rectified the situation(won't solve depth reading but if engine oil pressure and temp come back you are getting somewhere). If not then unplug the GPS puck and see if there's any change. Those are the other two things on the CAN besides the screen and ECM. Sometimes other bad loads can cause whacky stuff to happen on the CAN. If that doesn't solve it I'd be checking CAN hi and CAN lo voltages as close to the screen as I could get and also verifying terminating resistors are good at both ends.

CAN hi and CAN lo are a blue and white pair on Tiges

IF all that doesn't fix it I'd be wondering if possibly the screen itself or engine ECM is the issue. Hooking up to engine via Diacom while this condition is occurring should verify if the ECM is not sending the data out on the CAN.

If that sounds like a lot of wizardry theres some helpful videos out there on CAN before you grab your multimeter and dig in.

[Gdub312]

[QUOTE=freeheel4life;n1248776]I'd definitely do as Bamer recommended. I would also try unplugging the depth finder when this happens and see if it rectified the situation(won't solve depth reading but if engine oil pressure and temp come back you are getting somewhere). If not then unplug the GPS puck and see if there's any change. Those are the other two things on the CAN besides the screen and ECM. Sometimes other bad loads can cause whacky stuff to happen on the CAN. If that doesn't solve it I'd be checking CAN hi and CAN lo voltages as close to the screen as I could get and also verifying terminating resistors are good at both ends.

CAN hi and CAN lo are a blue and white pair on Tiges

IF all that doesn't fix it I'd be wondering if possibly the screen itself or engine ECM is the issue. Hooking up to engine via Diacom while this condition is occurring should verify if the ECM is not sending the data out on the CAN.

If that sounds like a lot of wizardry theres some helpful videos out there on CAN before you grab your multimeter and dig in.[/QUOTE

Thanks Bamer and freeheel4life. My boat is at the marina, so my troubleshooting has been a little limited so far.

Each morning the screen reading from the CAN work normally for about an hour or two, consistently for a few outings. Later in the day is when I will suddenly lose network communication. When it occurs, the analog meters (RPM, speedometer, eng temp bat voltage) also freeze. The last time out, I unplugged the triducer and there was no change. I will try the GPS puck connector next.

Prior to losing communication house and cranking battery are at 12V with IGN off and 14 when running. I still need to charge the batteries just to rule them out.

Next, I’ll also check CAN hi and lo voltages but just want to confirm where I’ll be checking. Will I be checking at the white connector (photo attached) near the touch screen?

I am just not sure why everything works after the boat sits overnight and drops signal after a few hours on the water.

thaks for the help, I really appreciate it.

[freeheel4life]

This is an odd one...especially in that it works for a while then quits after running the boat. Without keeping a meter(and being savvy with it)on hand it will be harder.

For a 15 I would have to verify where the terminating resistors are with Tige but one should be at the helm and the other at the back of the boat. When the problem happens I would first remove one resistor and ohm the CAN lines from one end and the repeat from the other end. I PREFER removing the resistor at each end and probing there with power off.. should see 120 ohms. Then put resistor in and chack from other end. You could check resistance anywhere on the CAN line and look for 60 ohms(parallel resistors) but the above method is just what I prefer.

After that I'd be checking CAN voltage Hi/Lo via back probe at opposite ends of the harness. If the resistors are good Id guess that there's a bad connection(pin corroded or not fully seated in a Deutsch plug) if you see voltage less than 2.4/2.6.

If none of the above are the issue I'd guess for some reason either engine ECM isn't communicating on the CAN or screen is the issue(after unplugging GPS puck)

https://support.enovationcontrols.co...de-with-Video-

^^here is a great video from the guys behind a lot of the technology on your boat if it helps..

Edit...looks like the plug with a bunch of blue wires is an jumper plug. The white plug you referenced is probably a decent place to check Can hi and lo. Id be looking to backprobe as close to the screen as possible.