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Old 11-27-2001, 03:14 PM   #1
Scooby Newbie
Member#: 7140
Join Date: Jun 2001
Location: louisville, ky, usa
2009 WRX
satin white pearl

Question bugaboos associated w/3 gauge dash cluster...anyone have these problems???

i bought the cheesy 3 gauge cluster for my 2002 wrx. you know, the one with the voltmeter, turbo, and oil temp gauges. anyway, when the dealer attempted to install the sucker the first time, the oil temp guage would "turn off" when my lights were turned on?? the tech said SOA had problems w/these things and suggested installing a capacitor or resistor or something between something or another...i've been on i-club for sometime now, and i NEVER EVER heard of anything like this. when the tech finally did this "jury rigging", the oil temp gauge seemed to work. however, my dim switch no longer works, and my compass is stuck on "N" (north)????

this subie dealership i went to seems utterly INCOMPETENT. has anyone ever heard of these issues?


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Old 11-27-2001, 10:22 PM   #2
Scooby Specialist
Member#: 9041
Join Date: Aug 2001
Chapter/Region: Tri-State
Location: Jersey Shore
2002 WRX
blaze yellow 1-450


Wow dude that stinks. I bought my pod from subaruparts.com and installed it myself. Any moron can install it. Just for the record. pop off the top and check to make sure the wires are attached to the right color wires(easy yellow-yellow white/black-white/black) The turbo hose just gets run to the gauges and harness gets plugged into the radio. Not rocket science. The oil pressure goes to the oil plug in the oil pan. The compass part is weird. Try disconnecting the battery for half an hour and try again. Maybe unplug the gauges and see if that helps. I guess its possible you could have some defective ones but sounds like a defective dealer. Good luck, as I am sure not too many had this problem. I have heard one guy have the gauges and radio stop working and that was because the harness behind the radio became disconnected. Later.

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Old 11-28-2001, 06:55 PM   #3
Scooby Specialist
Member#: 415
Join Date: Oct 1999
Chapter/Region: SCIC
Location: San Diego, CA USA
2002 WRX Wagon
2002 BMW Z3 3.0i Coupe'


Sounds like the ground wire of the gauge that's turning off is wired to the headlight wire instead of the dimmer or ground wire.

When you turn on the headlights, the potential of that wire climbs to 12v so you've got 12v-12v= 0v on the terminal.

Does the whole gauge shut off or just the lighting for it?
If its just the lighting then in means that the stock stuff uses a seperate lighting terminal (like the Autometer gauges), if the whole thing turns off then it probably means that the gauges only have V+ and ground terminals and they're miswired.

FWIW this also ties into the dimmer circuit for the lighting. The dimmer line is 12v referenced, not ground referenced, so the wire coming off of the dimmer circuit actually goes DOWN in voltage as you turn "up" the lights. The reason this works is that one side of the lights is tied to 12v, the other to the signal that varies 12v->0v. When the dimmer wire is at 0v, then you have 12v-0v = 12v on the circuit and everything is at full voltage (brightness).

On the Autometer gauges, you have to wire power, ground, and signal to the gauge, and then light power (12v) and the 12v->0v dimmer wire SEPERATELY for the lighting.

Some gauges don't support the dimming function and only allow you to wire power, ground, and signal, or worse power, ground, signal, and 0v->12v light power, (which is opposite of the dimmer wire).
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