2002 Toyota Echo-speedo,fuel gauge, odometer problem
The speedo,fuel gauge and odometer dont read. At times (when I hit a bump) they come to life for a moment, then go dead again. It seems like a wiring problem but someone has suggested faulty fuses and/or contacts. Where do I start? Any help would be appreciated!
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Hi, I can tell you that I was having a simular problem with my 2001 Chevy Silverado. The check engine light would come on and I lost both the speedometer and odometer. I also lost gas gauge, and oil pressure gauge.I would hit a bump and they would start working, but light would stay on. I bought the obd-2 meter to read codes and erase them so the light went off. This continued for 8 months. Finally, I started moving wires around under dash when gauges stopped and they would come on and off? Took me right to the circuit board on the ignition switch. I mean I tried everything possable to solve this and told a G.M. mechanic. He said I was right that it would be the switch and that most of you're wires that go to gauges and speedometer come from the ignition switch. I changed it and it has been fine since. You might try what I did see if you can do this while driving, i don't no, but if so be carful on the road. You may need to take it in also.There is something loose a ground wire or hot doing this. I would bet it is in the ignition switch. Best of luck, Shastalaker7
would change the ECU with the chip from the key from a car in scrapyard ,but before you get carried away try another seperate earth on the back of the speedo printed circuit board ,i wouldnt mind betting this is your problem
If the guage section of the instrument panel is not getting a solid connection to 12V power, then this will happen. I had a similar experience with a shorted connection that caused the fuse to blow that supplied power to the speedometer. When power was restored to the speedo, it read normally.
The dash lights are on a separate circuit, so they will continue to light up even if speedo power is bad.
Accessing the guage cluster is extremely easy on thes cars. You can quickly pull it out to re-seat the electrical connections. Should you find that you need a new cluster, I believe that the odometer readings are stored in the cluster and will cause your odometer to be wrong.