Newbie 2019 S-Mode not working, tried everything

ZoomZ

You may have answered your problem and my suspicion with this statement:

"only evidence of any fiddling around, is the cluster was removed for diagnosis."

photoguy007

But the cluster worked properly once I replaced the Shipping Fuse. And there weren't any major issues before replacing the fuse, just some minor issues. The Chevy dealer had no idea how to diagnose the minor issues I was having, and of course they scratched some plastics in removal.

I'm definitely not paying someone to fix this issue, if I can't figure it out, I'll just have to live without S-Mode. At this point I haven't experienced it, so not missing anything, lol.

Thanks.

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2019 370Z Sport Manual

ZoomZ

The fuse likely reset the combination meter due to someone disconnecting connectors. Doesn't mean it, or other connectors are connected properly or at all.

Start with the real simple test and see if you get power to the switch at the S mode harness. That power comes form combination meter.

Test switch itself.

(i've included both those tests and location of Fuses)

You did say you looked for fault codes?

photoguy007

I'll start as you suggested, test power to the switch.

Just a couple last questions below, then I'll let you be for a couple of days (lol), til' I get back to this.

1. I was wondering, is there a specific connector for S-Mode to the cluster, or is it routed into a connector with other functions? Hope this makes sense.

2. If there is a connection issue to the cluster, would that affect the function of S-Mode, or does it just not display "S"? I ask this because, one issue I had with the cluster, the turn indicators were actually working outside, but didn't display on cluster. This was remedied when I replaced the shipping fuse.

3. Ironically (first thing I always do), I haven't checked fault codes. Just purchased the Z, and haven't ordered a system reader yet. Can you recommend one for around $200? Not a simple code reader, but something more involved, like my "iCarsoft" scanner for my truck.

I really appreciate all your help, this is extremely helpful! I'm actually excited and driven now, to figure this out, can't let it go!

Thank you!!

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2019 370Z Sport Manual

ZoomZ

There are two fuses. 1 for combo meter ( Fuse #4 which you pulled) and another fuse for S-mode switch (fuse #3. both 10A)
Check #3.

There is a "signal" connection between Combo meter and S-mode switch. It should be one connector with specific pins.

4.CHECK S-MODE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect combination meter harness connector.
3. Check the continuity between S-MODE switch harness connector and combination meter harness con-
nector.
S-MODE switch Combination meter
Continuity
Connector Terminal Connector Terminal
M255 1 M53 12 Existed
4. Also check harness for short to ground and short to power.

So you want to check Connector 255, pin 1 at Switch to connector 53 at combo meter pin 12.

I highly doubt you have a short but there are "junction" connector (M98) along the way. Those could have not been connected or loose.

good luck.

photoguy007

[QUOTE=ZoomZ;4023383]There are two fuses. 1 for combo meter ( Fuse #4 which you pulled) and another fuse for S-mode switch (fuse #3. both 10A)
Check #3.

Just for fuse reference, the one circled is the one I replaced (Elec. Parts), you call #4, the natural order doesn't seem to be #4. Which would be #3/S-Mode fuse? The "Meter" fuse?

Just noticed the upside down fuses, on that right away!!

Thanks.

And no more questions for you today.

Attached Images

	370Zfuses.jpg (359.3 KB, 19 views)
	shippingfuse.jpg (368.2 KB, 21 views)

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2019 370Z Sport Manual

JARblue

Unless you're just OCD there is no reason to change the fuses. Current is flowing through both sides of the fuse in the same direction, no matter the orientation of the fuse.

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ZoomZ

[QUOTE=photoguy007;4023390]a little different from the FSM but generally same. ( not accepting my image)

Looking at your fuse box image, left column, upper slot (empty) is #1. So #3 and #4 is electric parts and meter.