Question about Toyota Cars & Trucks
Fuel, tach, temp, gauges don't work
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Posted on Jan 02, 2017
You might have a bad ground. According to my Haynes manual's wiring diagram, both gauges share the same ground and typically that is "located on the left side of the instrument panel", wherever that is. Sorry I can't be more specific about the location. While it may not be true on your vehicle (the wiring diagram states "typical late model" in its description), my wiring diagram says that the ground wire is Brown (BR). You might try locating that wire and track it to its attachment point. You also might try tapping into it and using a continuity tester and ground out the wire to metal (there's plenty of grounding points under there). Make sure the ignition key is off!! There might be a bad ground wire closer to the meters than the attachment point. Hope this is helpful. Allow plenty of time if you're going to investigate this yourself. Do you have other gauges? Do they work? I think that all of the gauges are ganged through the same fuse (but not through the same ground wire). You might consider checking the fuse to ensure that it's OK. Your owners manual that came with the truck will tell you which fuse is it. If there are other things on the same fuse and they work, it's not the fuse. I hope that this is helpful.
Posted on Nov 02, 2008
Fuse for the instrument panel is possibly blown. Check your owners manual for the proper location of the fuse. If you do not have a manual they are available online in PDF version.
Posted on Jan 09, 2009
Check all fuses with a test light. If all good, you will need to diagnose each circuit. Look for the temperature sensor, disconnect connector, ground test light and touch wire. Check to see if the gauge move. If it does, you will need a new sensor. Basically the test is the same for fuel gauge. Disconnect connector at the fuel tank and touch contact and see if gauge move. If it does, the sending more than likely is at fault. Make sure you test each wire as there will be a few. Use proper jack stands anytime you work under a car! Let me know your progress.
Posted on Jun 12, 2009
Did you check for a blown fuse in the fusebox? It sounds like a blown fuse or loose connection at the plug for the instrument cluster, or a short in the wiring. Hope this helped.
Posted on Jul 16, 2009
SOURCE: 2005 pontiac sunfire
I have the same problem.. i installed a toggle switch for the fuse so at least I can reset it while driving.. its still a pain so Im thinking my next step will be to drill a hole through the plastic and put in a small metal post to stop the tach from going past 7
has anyone taken theirs into a shop?
Posted on Mar 14, 2010
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