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I'm trying to repair a 96 Passat which after a minor fender bender has been sitting 4 yrs in my barn. The fuel pump was bad & has been replaced but is now not recieving power. The relay is good & operates with 12 volt jumper but the computer control is dead. Does anyone know what parameters the computer uses to control the fp relay, if the computer can be reset, what problems eliminating the computer control & connecting the fp relay to the ignition switch will cause??

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  • Cars & Trucks Master
  • 22,156 Answers

No this is the immobilisor ,call specialist with the right software and the 4 figure code to reset the immobilisor

Posted on Nov 27, 2013

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6ya6ya
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Posted on Jan 02, 2017

forrestcraig
  • 3 Answers

SOURCE: car wont restart after minor fender bender

Most modern autos are equiped with a crash sensor fuel cutoff switch. That may need to be reset. I don't know much about the Tarus, but I found the switch in the trunk area near the passenger rear fender in my Ford Escort.

Posted on Dec 11, 2008

ronaldo_ross
  • 1056 Answers

SOURCE: Volkswagen passat 96 AC relay location

You should never connect a 12volt to the compressor solenoid.unless you unplug it first, because on some cars the ac solenoid is driven by an electronic circuit. Semiconductors are very sensitive to excessive current. I once had to repair the computer on a mercedes because the other mechanic did that. Luckily I know how to repair electronic circuits, or they would have bought a 500 dollars computer the little chip that blew only costed a dollar fifty cents at radio shack,.LOL. Anyways back to your problem, Have you checked if there is a leak, and all the refrigerant might have leaked out? This would prevent the compressor from coming on. Along the ac line there is a switch, sometimes by the reciever drier, when the system looses refrigerant the pressure inside drops and that pressure switch disable the compressor. , and the compressor wont come on. This is to protect the compressor, because it will be damaged if you run it without refrigerant. Ac clutch solenoid is usually is not driven by relay, because an ac solenoid don't really take much current to to kick in, unless of course it is shorted. It would either be directly from the inside switch usually in series with the fan control or driven by a small transistor in a circuit, and the electronic circuit is driven by the ac controls inside. I think the problem with your ac is that it has no refrigerant thats why the compressor wont come on.

Posted on Jun 27, 2009

  • 850 Answers

SOURCE: 2000 elantra no power to fuel pump.

could be a bad earth or [ground]
the power wire ma be brocken or have a loose or dirty connection
you neeed to trace it along its lenght to determine the fault!
so start at the pump & work back
Cheers rob

Posted on Jul 20, 2009

  • 1 Answer

SOURCE: I have no power to the fuel pump unless I jump at

i am looking for the fuel pump relay on a 1996 4x4 3.0 mitsubishi triton any idea where it is on a RHD vehicle.

Posted on Sep 21, 2009

emissionwiz
  • 75822 Answers

SOURCE: No power to AC clutch 1994 olds cutlass ciera 3.1 litre

Have you tired jumping the AC compressor low pressure switch?

Posted on May 25, 2012

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