Nissan 370Z Forum - View Single Post - Electric Help Needed: Gauge Needles Not Illuminating, Trip Mileage Resetting, etc.)

Famiglia · 06-01-2023, 06:30 PM

I am stuck. I would really appreciate some troubleshooting help, or even better if someone else has had the same issue and knows the fix.

Here are the issues that have all come up at the same time:

Gauge needles will not light up (tachometer, speedometer, triple: oil temp & volt). The gauge’s background lights up and the needles accurately move, but the needles just wont light up.
Trip mileage odometer (A & B) zeros out every time I turn off the car.
OBDII port no longer powering EcuTec Bluetooth Adapter dongle.
HomeLink system (rearview mirror) no longer functioning (constant green light on mirror and no response to HomeLink use or reset or reprogram).

I have visually checked all fuses and relays. Will try voltmeter testing each one soon.

Full disclosure, I recently took out my stock triple gauges and upgraded to some nice ProSports. I thought that may be the issue, so hooked up the stock triple gauge cluster again to hopefully fix it all by retoring the wiring that is now disconnected, but that did not fix anything. Issues continued, and now see that the needles on the triple (oil temp & volt) also do not illuminate with headlights lighting.

06-01-2023, 06:30 PM	#1 (permalink)
Famiglia Base Member Join Date: Feb 2018 Location: Pleasant Grove, Utah Posts: 7 Drives: 14 Nissan 370Z Nismo Rep Power: 7	Electric Help Needed: Gauge Needles Not Illuminating, Trip Mileage Resetting, etc.) I am stuck. I would really appreciate some troubleshooting help, or even better if someone else has had the same issue and knows the fix. Here are the issues that have all come up at the same time: Gauge needles will not light up (tachometer, speedometer, triple: oil temp & volt). The gauge’s background lights up and the needles accurately move, but the needles just wont light up. Trip mileage odometer (A & B) zeros out every time I turn off the car. OBDII port no longer powering EcuTec Bluetooth Adapter dongle. HomeLink system (rearview mirror) no longer functioning (constant green light on mirror and no response to HomeLink use or reset or reprogram). I have visually checked all fuses and relays. Will try voltmeter testing each one soon. Full disclosure, I recently took out my stock triple gauges and upgraded to some nice ProSports. I thought that may be the issue, so hooked up the stock triple gauge cluster again to hopefully fix it all by retoring the wiring that is now disconnected, but that did not fix anything. Issues continued, and now see that the needles on the triple (oil temp & volt) also do not illuminate with headlights lighting.