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Old 12-25-2007, 03:59 PM   #1 (permalink)
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Unhappy Check Engine Light On And Flashing Cruise Light Too

I get into the car and start as usual - nothing different in it's 18800 original miles I owned it since new 11-11-06.

I head out onto the freeway and check the tach and speed etc. and notice the temp gauge is pegged in the red or "H" position, and where the trip odometer reading is is says.. "ER HC"

(error = heating cooling)???

Engine is running fine - no spray or steam no leaking hose etc.

I stop, shut off the engine and check it out under the hood as best the light will allow me - nothing seems amiss. Nothing steaming or anything...engine even feels cool - not "H" melting hot..!

I get back into the OBXT and start it up...everything is back to normal, coolant temp level back to the middle / normal place and except the "Check Engine" light is on full blaze and the green "Cruise" light is blinking and non-functioning.

Whatever happened I figure it was a glitch and now the computer needs to be "reset".

The only thing I did was run the OBXT through the car wash earlier that day - then this hours later.

So - what's your best guess??


BTW - it goes in for an oil change tomorrow and I can have them look up the problem then...just wanted your thoughts before I go in.

I do have extended warranty also...although I'm on the original 3/36000 right now.

TIA

hANNAbONE
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Old 12-25-2007, 04:50 PM   #2 (permalink)
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This just means that you have an engine code being called out. You will need to have a dealer read the code to tell you want sensor is out of whack. It could be the water is throwing off some sensor or electrical reading.

No worries for now!
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Old 01-25-2008, 10:25 AM   #3 (permalink)
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Hi hANNAbONE, did you find out anything more about this? The dealer might have a reflash available for your vehicle's ECU. It seems ECU reflashes are much more common in later model vehicles.
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Old 01-30-2008, 07:40 PM   #4 (permalink)
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Default check engine/loss of cruise

I'm hoping our first poster returns; my 2005 Legacy has done exactly the same thing, and I'd really appreciate what problems - and the cure- were found for his outback.

Some of the 'fixes' I've seen suggested include 1) disconnecting the battery (but others have said that can mess up a lot of other settings on the car) 2) Pulling the fuse for the cruise (but doesn't address the 'check engine' light) 3) obtain a scanner so I can get the code, and presumbably, the cure.

Any knowledgeable folk interested in educating the newbies?
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Old 01-30-2008, 08:04 PM   #5 (permalink)
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Hi and did you ask the dealer if any ECU reflash/updates are available for your vehicle?
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Old 01-30-2008, 11:27 PM   #6 (permalink)
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Hi, Porcupine,

I must confess - I don't know what an ECU is (but it would appear this is a 'software' update of some sort?). I haven't contacted my dealer yet; they are 150 miles away - I hoping that visit will be 'Plan B', but perhaps I can't avoid that?
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Old 01-31-2008, 09:13 AM   #7 (permalink)
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it could be a sensor got wet or it could be something worse. you can go to the dealer to have them read the trouble code or you can take it to your local autozone, advance, pepboys and they can read the trouble code.
then once you have the code you can figure out the solution.
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Old 01-31-2008, 09:16 AM   #8 (permalink)
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Quote:
Originally posted by george jung
Hi, Porcupine,

I must confess - I don't know what an ECU is (but it would appear this is a 'software' update of some sort?). I haven't contacted my dealer yet; they are 150 miles away - I hoping that visit will be 'Plan B', but perhaps I can't avoid that?
the ecu-engine control unit or ecm-engine control module is the "brains" of the car. it controls most every function in the car.
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Old 01-31-2008, 09:58 AM   #9 (permalink)
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Right on, ECU = engine control unit or ECM = engine control module. It is essentially a computer with software that takes all sorts of inputs from engine sensors and controls engine fuel, spark, timing, etc.

Like all software, sometimes there are glitches/bugs that don't get noticed until it has been rolled out.

Don't worry, soon vehicles will download their own software updates via wireless internet. I'm sure someone already has the patent for that.....
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Old 01-31-2008, 01:52 PM   #10 (permalink)
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Is there anyway to access ECU updates short of a dealer visit/install? Doesn't sound like something designed for the DIY type.
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