Hello. I have read a few posts on other forums regarding issues with Nissan/Infiniti gauge clusters and about a week ago my EX35 speedometer quit working correctly. Currently it’s stuck at 160+ mph. No engine codes and odometer is working fine. All other gauges are working normally and the transmission is normal too. I’m thinking it’s the stepper motor for the speedometer and believe that something I can fix myself if I can find a replacement. Thoughts?

In the EX's the speedo signal comes from the ABS to the cluster on CAN, and the odo reading is then calculated by the cluster from the speed signal. So if the odo works, your assumption that it must be a cluster failure is correct. The steppers aren't all that difficult to replace if you can find the right one or have a similar cluster to part out.

Hello. Just an update on the speedometer issue. I replaced the drivers side front wheel bearing and forgot to pay attention to how it was oriented so when I went to install the ABS sensor it wouldn’t go in all the way. I zip tied it up out of the way and installed the wheel for a test drive. The drive went fine but now instead of traveling at 160 mph all the time it’s behaving relatively normal. LOL… It’s still off but I’m sure once I re-install the hub and replace the old sensor with a new one the speedometer will be back to normal, meaning working as it should.

Hello all. Just wanted to provide an update on the speedometer issue. I’ve replaced both front wheel hubs/bearing assemblies and both front ABS sensors. I think the drivers side is also a wheel speed sensor. I’m not clear on that. Anyway, the speedometer works okay most of the time but the needle doesn’t go to zero, it settles at about 5 mph when stopped. I haven’t taken the time to remove the negative battery terminal to cycle power to the ECU.

You're not getting an ABS warning light? That's plain weird, Nissan ABS's are touchy as hell about missed wheel pulses.

No ABS light. I’ll be replacing the front brake rotors and pads this weekend and will disconnect the negative battery cable for a bit too. My EX35 has about 96,000 miles on it and is my daily driver. This EX has better brakes than my BMW Z4. LOL