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Computer not working - 1999 Volkswagen Passat

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How do you know the computer is not working?

Posted on Aug 06, 2009


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Computer no longer works I got a boost cause the battier deid now the computer screen is black and the radio don't work

its a fuse I had the same thing happen to me all my computer shut down and my friend told me to come to his shop he switched my fuses out and it worked fine after that

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The computer says the immobilizer coil is open/short

Did you reset the computer. Usually disconnecting the battery for about 10 minutes should do it. If this does not fix it, you need to recheck your work. Something you did has caused the message. Did you short circut a wire, burn a fuse, forget to reconnect something? The immobilizer probably works by immobilization of the vehicle's coil circut. Thus, causing the computer message to display about the coil issue. Try reset computer of vehicle should work.

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The speed sensor in the transmission may not work without the computer being connected in the circuit.

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Can I add an instrument cluster to a 2005 nissan altima with a trip computer on it to one that does not have a trip computer and make it work?

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How can i get the 2 other cylinders working ? do i need a new computer ? the ground cable was loose and sparked a bit reconeccted but now 2 cylinders won't work so now i took out the car computer

Try swapping the coils on the plugs to see if this restores spark to those cylinders. If it does, then just replace the coils which aren't sparking.
If it doesn't work, then yes, you may have a ECU issue.

Oct 29, 2012 | 1999 Daewoo Nubira

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How to rewire blinkers to by pass the computer

Go to a junkie for the computer . A 1000 bucks just to have blinkers working? I don't think so!

Sure lights go thru the computer? Get a schematic and study it. Trust no one.

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Gauges stop working, car keeps running fine. Air conditioner stops working, engine keeps running. To fix both problems I stop the car, turn the key off, restart. Everything works fine. I have to do this...

Just a thought Do you think it could be the circuit breaker. I have had cars with auto resettable fuses, don't know if that would be in your truck. It seems when you turn the truck off something is resetting.

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I have a 1999 Dodge Ram 1500 series pickup truck. The speedometer doesnt work. I've changed the speed sensor on the transmission and the wiring to the computer to the sensor, and the speedometer head...

The speed cluster work from the ABS speed sensors that have separate computer it is on engine compartment near battery and brake booster. This computer work independent and only get 12v and can bus send all the info by a can bus 2 wires that run to dodge ECM same wires run to cluster. I make a diesel swap speed work ok but not my RPM any ideas

Jul 25, 2011 | 1999 Dodge Ram

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I wanted to know the purpose for a computer on a 2002 jeep liberty also about how much does it cost to replace it ? is it ok to drive the jeep without the computer working ?

Which one? There are at least 3 computers and maybe more.
There is one for the ignition because the spark has to advance or ****** with speed, fuel quality, and knock. There is one for the fuel injection, that has to respond to the feedback like from the O2 sensor.
There is also usually a computer in the climate control.
There could also be one in the lock/security system.
And automatic transmission usually has a computer these days as well.
If it can run, then either the computer is not essential or it is working.
It will not run without the ignition, security, or fuel computer working.
But it will run without the climate control computer working.

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2001 Jeep Cherokee - Power outlet, no power

Have you checked the fuse for them? The location should be in your owner's manual.

Mar 06, 2009 | 2001 Jeep Cherokee

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