Toyota gurus, please help. The tachometer (RPM) gauge of my Hilux diesel 05 model is not working properly. I suspect loose wiring. Checked the back panel of the gauges and so far the wirings are ok. Just want to know where the RPM is connected. Is it connected to the Alternator or the Fuel Injector Pump. Could be that there is a looses wiring at the source.
Experiencing it now but it's the speedo rather than the tacho. Apparently the speedo and tacho are run through the same cable. Replace the cable and the issues should vanish.