Once the engine is started, the dashboard gauges will completely quit working, in addition the windows, cruise controls, temp indicator etc. will not work as well. sometimes as i drive with no operational gauges, all of a sudden they will work for a few minutes then quit again. I found that if I disconnect the battery for a few minutes then reconnect it, the gauges etc. will work ok for a period of time. Any suggestions would be appreciated.
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Re: Electrical system goes crazy!!
Dirty Power and Ground connections. Working from the Battery, disconnect and clean all joints, along the Harness to the Main power box, and do the same in there.
It is a Ball acher, but it will fix the problem.
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Could be a lose connection in the dash , more then likely . Who replaced the gauge an drive indicator ? The horn / cruise control /turn signals / radio all share a common ground point it looks like ,G203 G203
Behind upper LH side of I/P, near cowl
Maybe after gauge & drive indicator replacement connection became lose . None of these componets share a power supply (fuse) I can't send picture of the location of G- 203 sorry ! Instrument cluster would need to come out to see the ground .
I've seen condensation form inside air ducts under dashboard collect then cause corrosion of electrical connector terminals located at bottom of said ducts.
The corrosion causes them to have high resistance, then they get hot when current is passed through them during operation of heater fan motor.
Check under dash for connectors and visually inspect with a flashlight. If they are distorted and melted due to heat, they have to be replaced or otherwise removed from electrical circuit and bypassed.
code p0118 refers to engine coolant temperature (ETC) sensor ---circuit malfunction===causes---coolant thermostat---wiring open circuit/short to positive---wiring short to ground---ground wire defective---ECT sensor.. The temp gauge works off a temperature sender unit separate to the coolant sensor and if it is reading 100 then it indicates an overheat situation in the engine . Probably why the engine light is coming on. As the thermostat is in the list of causes I would replace it as a precaution. The coolant sensor is what tells the CPU to turn on the electric fans to cool the radiator
Check your battery connections to see if they ae clean and tight. Check all the ground wires in the engine compartmen to see if any is loose. Then check under the dashboard ror any loose ground wire connecting to metal points on the frame of the dashboard. You probably have a loose ground somewhere that is intermittently losing electrical contact....good luck!
I would suggest you remove the dash light dimmer control rheostat (In most cases part of the main headlight switch) and test it for continuity, I think it may be defective, please perform the testing before replacing any parts.
the coolant could be just overflow,, as far as the temp,, replace the thermostat as a first thing, when your car gets that hot, it causes readings to be sent to the computer that sends mixed signals to other parts of the car, The first thing you should do is pull the diagnostic codes. This will tell you if the thermostat is dead.check the temp sending unit, it is located under the upper radiator hose, 19mm wrench will take it off, it costs about 20 bucks but you also need to replace the thermostat. all in all its about 25 bucks total and all your gauges work fine....
You have some wiring problems shorting out that is coming from the dash board so if you or anyone you know how to use a multimeter to check the wireing harnesses plus check any connectors that might be just very touching the connector of dashboard which means a bad connection to dashboard.
Well, considering that the fuel gauge is an electrical device, I would say that is most definitely an "electrical problem". The challenge is to locate where the elecrical problem originates from.
A ground circuit is defiately a possibility. The instrument cluster shares a common ground with many different components. The main ground for the IPC is at the rear of the right cylinder head. This ground is shared with the window motor circuits. Also there is a splice that is shared is is S246 and is located in the main instrument panel wiring harness approximately 37cm to the right from the steering column breakout.
-Or you could just have a bad instrument cluster. The printed circuits have been known to deterriorate and lose contact with certain components, including the fuel gauge.