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cayenne 2004 help

zuzuss
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zuzuss Member

zuzuss

Posted
Posted

i have a problem with cayenne 2004. the car start for 10 sec and stop . i put the durametric tester and i note the dtc 87 terminal 30, p668,p1314,p1525,p778 .i short the relay from pump fuel and the car ''work'' i don t have any electric diagram for fuse box and relay box

thx in advance...

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Loren Member

Loren

Posted
  • Admin
Posted

That all has to do with the vehicle main relay - likely power supply issue.

Check your battery(s) - if they are over 4 years old replace them.

If they are newer - then have the specific gravity (of each cell) tested as well as load voltage tested.

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RFM Member

RFM

Posted
  • Moderators
Posted

What's happen with the car before ? My feeling tells me that you have forgotten some details to mention.

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RFM Member

RFM

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  • Moderators
Posted

OK, the car use two pumps, mostly alternating, sometimes together. 1/ The fuses (2) and the relays (2) are located in the box under the trim (left side) in front of the windscreen, check the fuses and relays. 2/ Under the car, left side in front of the rear wheel well, you will find a connector with the fuel pumps wiring (wiring enters the car approx. under the left rear seat), check the connector for proper contact and the wiring for heat damage. 3/ The fuel pumps are located under the rear seats left and right, remove the covers, remove the connectors and apply 12V directly on the pump left ( both largest in diameter wires ) You can hear the pump running now, if they don't, replace. Do the same with the pump right. My bet is pump right faulty.

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